The Shiny Chinpokomon of RAM; CORSAIR's DOMINATOR PLATINUM Special Edition DDR4

Subject: Memory | September 28, 2016 - 01:07 PM |
Tagged: DOMINATOR PLATINUM Special Edition, corsair, ddr4, ddr4-3200, DHX

Corsair's DOMINATOR PLATINUM Special Edition series comes in 32GB kits, either four 8GB DIMMs or a pair of 16GB DIMMs, in your choice of Chrome or Blackout finishes.  All kits are DDR4-3200MHz but with the 10-layer PCB and DHX heatsinks Corsair feels that reaching 3600MHz will be trivial and higher frequencies possible for talented tweakers.  They will be available directly from Corsair, $330 for the quad-channel kit and $300 for the dual channel.

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You can read the full PR by clicking below.

Source: Corsair

G.SKILL Announces Trident Z 4x8GB DDR4-3866 Kit

Subject: Memory | September 2, 2016 - 05:24 PM |
Tagged: gskill, ddr4

Judging by a quick scan of Newegg USA, G.SKILL is pretty much alone in bringing 8GB DIMMs to speeds above DDR4-3733. They already have a 2x8GB kit in the DDR4-4000 and DDR4-4133 ranges, but they're now introducing a 4x8GB kit into the DDR4-3866 classification. The chip is rated at CL18-19-19-39 when supplied with 1.35V. This is much higher voltage than slower sticks, but, as far as I can tell, pretty good at that speed. It also supports XMP 2.0 to automatically configure your BIOS, which is a bonus.

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Granted, I cannot think of too many situations where four channels of high-bandwidth memory will give you any real benefits, apart from obviously a narrow list of overclocking record categories. Current DDR4-capable processors can do up to 16GB DIMMs. Personally, I'd tend to err on the side of slower, denser sticks of RAM. I'm more concerned about leaving everything I want in memory, versus any potential bottlenecks I might introduce in giving my CPU work. That's just me, though. If you have the need for high-bandwidth, quad-channel, DDR4 memory, then here you go.

Pricing has not yet been announced. That said, a 2x8GB DDR4-4000 (the next category up) of the same brand can be found for around $190 USD. 2x8GB DDR4-4133 (the next category above that) is about $220 USD. While those kits contain half the sticks, 2 vs 4, the new kit might be slightly cheaper per stick than these. That's just speculation, though, until retailers show their stock.

Source: G.SKILL

Samsung and SK Hynix Discuss The Future of High Bandwidth Memory (HBM) At Hot Chips 28

Subject: Memory | August 25, 2016 - 02:39 AM |
Tagged: TSV, SK Hynix, Samsung, hot chips, hbm3, hbm

Samsung and SK Hynix were in attendance at the Hot Chips Symposium in Cupertino, California to (among other things) talk about the future of High Bandwidth Memory (HBM). In fact, the companies are working on two new HBM products: HBM3 and an as-yet-unbranded "low cost HBM." HBM3 will replace HBM2 at the high end and is aimed at the HPC and "prosumer" markets while the low cost HBM technology lowers the barrier to entry and is intended to be used in mainstream consumer products.

As currently planned, HBM3 (Samsung refers to its implementation as Extreme HBM) features double the density per layer and at least double the bandwidth of the current HBM2 (which so far is only used in NVIDIA's planned Tesla P100). Specifically, the new memory technology offers up 16Gb (~2GB) per layer and as many as eight (or more) layers can be stacked together using TSVs into a single chip. So far we have seen GPUs use four HBM chips on a single package, and if that holds true with HBM3 and interposer size limits, we may well see future graphics cards with 64GB of memory! Considering the HBM2-based Tesla will have 16 and AMD's HBM-based Fury X cards had 4GB, HBM3 is a sizable jump!

Capacity is not the only benefit though. HBM3 doubles the bandwidth versus HBM2 with 512GB/s (or more) of peak bandwidth per stack! In the theoretical example of a graphics card with 64GB of HBM3 (four stacks), that would be in the range of 2 TB/s of theoretical maximum peak bandwidth! Real world may be less, but still that is many terabytes per second of bandwidth which is exciting because it opens a lot of possibilities for gaming especially as developers push graphics further towards photo realism and resolutions keep increasing. HBM3 should be plenty for awhile as far as keeping the GPU fed with data on the consumer and gaming side of things though I'm sure the HPC market will still crave more bandwidth.

Samsung further claims that HBM3 will operate at similar (~500MHz) clocks to HBM2, but will use "much less" core voltage (HBM2 is 1.2V).

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Stacked HBM memory on an interposer surrounding a processor. Upcoming HBM technologies will allow memory stacks with double the number of layers.

HBM3 is perhaps the most interesting technologically; however, the "low cost HBM" is exciting in that it will enable HBM to be used in the systems and graphics cards most people purchase. There were less details available on this new lower cost variant, but Samsung did share a few specifics. The low cost HBM will offer up to 200GB/s per stack of peak bandwidth while being much cheaper to produce than current HBM2. In order to reduce the cost of production, their is no buffer die or ECC support and the number of Through Silicon Vias (TSV) connections have been reduced. In order to compensate for the lower number of TSVs, the pin speed has been increased to 3Gbps (versus 2Gbps on HBM2). Interestingly, Samsung would like for low cost HBM to support traditional silicon as well as potentially cheaper organic interposers. According to NVIDIA, TSV formation is the most expensive part of interposer fabrication, so making reductions there (and somewhat making up for it in increased per-connection speeds) makes sense when it comes to a cost-conscious product. It is unclear whether organic interposers will win out here, but it is nice to seem them get a mention and is an alternative worth looking into.

Both high bandwidth and low latency memory technologies are still years away and the designs are subject to change, but so far they are both plans are looking rather promising. I am intrigued by the possibilities and hope to see new products take advantage of the increased performance (and in the latter case lower cost). On the graphics front, HBM3 is way too far out to see a Vega release, but it may come just in time for AMD to incorporate it into its high end Navi GPUs, and by 2020 the battle between GDDR and HBM in the mainstream should be heating up.

What are your thoughts on the proposed HBM technologies?

Source: Ars Technica

IDF 2016: G.Skill Shows Off Low Latency DDR4-3333MHz Memory

Subject: Memory | August 20, 2016 - 01:25 AM |
Tagged: X99, Samsung, ripjaws, overclocking, G.Skill, ddr4, Broadwell-E

Early this week at the Intel Developer Forum in San Francisco, California G.Skill showed off new low latency DDR4 memory modules for desktop and notebooks. The company launched two Trident series DDR4 3333 MHz kits and one Ripjaws branded DDR4 3333 MHz SO-DIMM. While these speeds are not close to the fastest we have seen from them, these modules offer much tighter timings. All of the new memory modules use Samsung 8Gb chips and will be available soon.

On the desktop side of things, G.Skill demonstrated a 128GB (8x16GB) DDR4-3333 kit with CAS latencies of 14-14-14-34 running on a Asus ROG Rampage V Edition 10 motherboard with an Intel Core i7 6800K processor. They also showed a 64GB (8x8GB) kit clocked at 3333 MHz with timings of 13-13-13-33 running on a system with the same i7 6800K and Asus X99 Deluxe II motherboard.

128GB 3333MHz CL14 demo.JPG

G.Skill demonstrating 128GB DDR4-3333 memory kit at IDF 2016.

In addition to the desktop DIMMs, G.Skill showed a 32GB Ripjaws kit (2x16GB) clocked at 3333 MHz running on an Intel Skull Canyon NUC. The SO-DIMM had timings of 16-18-18-43 and ran at 1.35V.

Nowadays lower latency is not quite as important as it once was, but there is still a slight performance advantage to be had tighter timings and pure clockspeed is not the only important RAM metric. Overclocking can get you lower CAS latencies (sometimes at the cost of more voltage), but if you are not into that tedious process and are buying RAM anyway you might as well go for the modules with the lowest latencies out of the box at the clockspeeds you are looking for. I am not sure how popular RAM overclocking is these days outside of benchmark runs and extreme overclockers though to be honest.

Technical Session OC System.JPG

Overclocking Innovation session at IDF 2016.

With regards to extreme overclocking, there was reportedly an "Overclocking Innovation" event at IDF where G.Skill and Asus overclocker Elmor achieved a new CPU overclocking record of 5,731.78 MHz on the i7 6950X running on a system with G.Skill memory and Asus motherboard. The company's DDR4 record of 5,189.2 MHz was not beaten at the event, G.Skill notes in its press release (heh).

Are RAM timings important to you when looking for memory? What are your thoughts on the ever increasing clocks of new DDR4 kits with how overclocking works on the newer processors/motherboards?

Source: G.Skill

Corsair's Dominator Platinum, 64GB of DDR4-3200

Subject: Memory | August 17, 2016 - 04:15 PM |
Tagged: Corsair Dominator Platinum, corsair, ddr4-3200

It will certainly cost you quite a bit to pick up but if you have a need for a huge pool of memory the 64GB Corsair Dominator Platinum DDR4-3200 kit is an option worth considering.  The default timings are 16-18-18-36 and the heat spreader and DHX cooling fins keep the DIMMs from heating up, even when Overclockers Club upped the voltage to 1.45V.  Part of the price premium is the testing which was done before these DIMMs left the factory, as well as the custom PCB and hand picked ICs which should translate to a minimum of issues running at their full speed or even when overclocked.  Pop by to see how this kit performed in OC's benchmarks.

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"If I break it down, you get a set of modules that have been through an extensive binning process that hand selects the memory ICs being used on these modules. There is a custom designed, cooling optimized PCB that those memory IC's are mounted to so that we can enjoy a trouble free user experience. The DHX cooling solution on these modules is easily up to the task of keeping the modules cool with minimal airflow. The heat spreader and DHX cooling fins are designed to use convective cooling in the absence of any airflow over the modules."

Here are some more Memory articles from around the web:

Memory

Patriot at Computex, a new SODIMM and SSD

Subject: Memory, Storage, Shows and Expos | May 31, 2016 - 04:19 PM |
Tagged: patriot, sodimm, viper ddr4, spark, ssd

Patriot unveiled the Viper DDR4 SODIMM series, with frequencies ranging from 2400MHz to 2800MHz in both single and dual kits.  Available in 8GB and 16GB capacities the prices start at $34.99U for a single 2400HMz 8GB SODIMM to $169.99US for dual 16GB DDR4-2800MHz kit.

viper.jpg

They also announced a new series of SSDs called Spark which use the Phison S11 controller and TLC NAND.  They will be available in Q3 and come in 128GB, 256GB and 512GB capacities with prices of $34.99, $56.99 and $104.99US respectively.

spark.jpg

You can read more below the fold.

Source: Patriot

CORSAIR Debuts 'Build It Better' at Computex 2016

Subject: Cases and Cooling, Memory, Shows and Expos | May 30, 2016 - 01:46 PM |
Tagged: corsair, Vengeance LED, Dominator Platinum SE, ML PRO, ML PRO LED, 400C, bulldog, laptop

As the specifications are sparse as of yet, we will let Corsair tell you about their products in their own words.  Start off looking at this fancy setup and carry on through new fans, DIMMs and SFF systems built with VR in mind.

unnamed.jpg

Build it Brighter - Faster, Brighter, Better DRAM
The heart of the CORSAIR Product range, Computex 2016 sees the first showing of two new ranges of high-performance DDR4 memory – CORSAIR Vengeance LED and CORSAIR Dominator Platinum Special Edition. Vengeance LED brings integrated lighting and an aggressively styled new heat-spreader design to the award-winning CORSAIR Vengeance range of XMP 2.0 certified DDR4, allowing enthusiasts to light up their system with vibrant LED lighting in either red or white. Vengeance LED will also be the fastest CORSAIR DDR4 memory kit ever, with specially selected Samsung ICs driving kits to 4,333MHz and beyond.

Dominator Platinum Special Edition takes premium DDR4 to the next level, adding two unique finishes to CORSAIR Dominator Platinum’s unmistakable industrial design and aluminum finish. Shown in both Blackout brushed aluminum and dazzling Chrome finishes, Dominator Platinum Special Edition is built using top bin Samsung ICs, rigorously tested to ensure ample overclocking headroom on X99 and 100 Series platforms. The result is stunning memory that offers both premium looks and premium DDR4 performance.

Vengeance LED and Dominator Platinum Special Edition will launch in Q3.

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Build it Cooler - A Revolutionary New Range of Magnetic Levitation Technology Fans
CORSAIR’s range of cooling fans have long been favourites of enthusiasts, matching performance with low noise and a wide choice of customisation options. The new CORSAIR ML PRO and ML PRO LED are much more than just a new range of fans – they include an entirely different kind of bearing that will change what enthusiasts expect from a high-performance cooling fan.

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Harnessing patented Magnetic Levitation bearing technology and custom rotor designs, CORSAIR ML PRO fans offer both high static pressure and high air flow, with an ultra-low friction magnetic bearing that simultaneously generates lower noise and provides higher performance. Offered exclusively with PWM speed control over a huge 2,000 RPM range, CORSAIR ML PRO fans mean users don’t have to choose between low-noise and high airflow; one fan can deliver both silence and absolute performance. Customisable with swappable, color co-ordinated corners and available in both 120mm and 140mm models, the ML PRO series is also available in ML PRO LED versions, adding integrated lighting into the fan’s hub, radiating light out through the frosted translucent blades for a vivid, striking look.

The CORSAIR ML PRO and ML PRO LED range of fans will launch in Q3.

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Build it Faster – NVIDIA GeForce GTX 1080 comes to CORSAIR with MSI
A modern gaming PC is nothing without a powerhouse of a graphics card, and CORSAIR is proud to once again partner with MSI in the development of its Hydro GFX GeForce GTX 1080. Featuring an integrated closed-loop CORSAIR liquid cooler and PCB design by MSI, the Hydro GFX pushes the GTX 1080 to the limit thanks to its greatly increased GPU core cooling capacity, allowing the GPU to reach higher boost clock frequencies for longer. The result is a quieter, cooler, faster GeForce GTX 1080 right out of the box, ready to conquer even the most demanding of modern games and settings with ease.

The Hydro GFX GeForce GTX 1080 will launch in Q3.

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Build it Your Way - 400C Gets a Clean New Look
Building a high-end PC is all about building it your way – your style, your choice of parts, your color. That’s why CORSAIR is bringing a new look to the multi-award winning Carbide 400C Case, the Carbide 400C White. Retaining everything that made the 400C a huge hit with enthusiasts when launched in January 2016, including a stunning full size windowed side panel, minimalist, drive-bay-free front panel and integrated PSU cover, the 400C White swaps ends of the color spectrum for a clean, cool new look.

The CORSAIR Carbide 400C White will launch in June 2016

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Build it in the Living Room – BULLDOG and LAPDOG go VR
Celebrating the launch of the CORSAIR BULLDOG and LAPDOG last week, CORSAIR will also be showing the latest application for its living room gaming system and control center, Virtual Reality. By combining the performance of the liquid-cooled, living room friendly BULLDOG system, couch-comfortable LAPDOG and the latest in VR technology from Oculus and HTC, Gamers can experience all that VR has to offer, right from the comfort of their chair.

Here is the Laptop in action.

Followed up by the Bulldog

Source: Corsair

Crucial Announces Ballistix Sport LT DDR4 SODIMMs

Subject: Memory | May 17, 2016 - 12:09 PM |
Tagged: sodimm, ddr4, crucial ballistix sport

Crucial is releasing some new high end memory for gaming laptops and for those mobile devices which work for a living.  The new Ballistix Sport LT DDR4 SODIMMs will start at speeds of 2400 MT/s and will be fully Intel XMP compatible assuming you system beleives in those DDR4 speeds; if not look for an update from the manufacturer.  The SODIMMs will be available in sizes of up to 16GB per DIMM so you should be able to install quite a large pool of memory.  They didn't offer up any pictures as this was being written but instead a Youtube video of how Ballistix memory is made, which you can see below.

Boise, ID, and Glasgow, UK, -- May 17, 2016 – Crucial, a leading global brand of memory and storage upgrades, today announced the availability of Ballistix® Sport LT DDR4 SODIMMs. Ideal for gamers and performance enthusiasts, the new modules accelerate gaming laptops and small form factor systems by packing faster speeds into every memory slot, enabling users to run demanding games and applications with ease.

With speeds starting at 2400 MT/s, Ballistix Sport LT SODIMMs offer better latencies, reduced load times, and improved frame rates with integrated graphics. The new modules also feature a sleek black PCB and digital camo design and support Intel® XMP 2.0 profiles for easy installation.

“We’re constantly seeking ways to empower gamers with affordable, easy-to-use products that help them gain that competitive, performance edge,” explained Jeremy Mortenson, product marketing manager, Crucial. “With new platforms supporting faster DDR4 SODIMMS coming to the market, the newest Ballistix SODIMM module does just that.”

The Ballistix Sport LT DDR4 SODIMM modules will be available for purchase at www.crucial.com and through select global partners. All Crucial memory is backed by a limited lifetime warranty Limited lifetime warranty valid everywhere except Germany, where warranty is valid for 10 years from date of purchase.

For more information about Ballistix memory, visit crucial.com/ballistix.

Source: Crucial

G.Skill Adds Splash of Color To Trident Z Memory Modules

Subject: Memory | May 17, 2016 - 03:07 AM |
Tagged: trident z, gskill, G.Skill Trident Z, ddr4

G.Skill recently updated its high end line of Trident Z DDR4 memory modules to add several new color options. While no new speed tiers are being introduced, the existing DIMMs with brushed aluminum silver colored modules with red and black accents will shortly be joined by new modules with 5 new color schemes including silver modules with white or black top bar accents or black modules with white, yellow, or silver accents.

Trident Z 5 colors.png

There is nothing groundbreaking here, but it will certainly make putting together a build based around a particular color or theme a bit easier, and that is their goal as these new DIMMs are aimed at modders and enthusiasts who are the most likely group to be running windowed or open air type systems that can show off the internal hardware.

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For those interested, the new colors will be available at the end of May. The memory kits in DDR4 3200 Mhz speeds (16GB to 128GB kits) of all timings will be available in the existing red and all the new color schemes. Users wanting the faster speed memory kits (e.g. DDR4 3400) will be limited to the red, white, and black accents (no orange or yellow top pieces on the heat spreader).

Source: G.Skill

Crucial's DDR4-2133 32GB Dual-Channel kit; decent price but can it perform?

Subject: Memory | March 14, 2016 - 04:04 PM |
Tagged: crucial, ddr4, ddr4-2133

The price of DDR4 continues to come down from the stratosphere and into affordable territory, especially when you look at the kits lower their frequencies to allow you to buy a larger pool of RAM.  The Crucial DDR4-2133 32GB kit is an example of this, albeit a strange one as they have opted for two DIMMs as opposed to four.  The DDR4-2133 15-15-15-36-2T kit retails for ~$175 and has forgone heatspreaders, not a major problem as they are generally only useful for those who want flashy looking RAM.  Unfortunately the price is a bit higher than some of the competition and from Hardware Canucks' testing the DIMMs really do not like to be overclocked.  If you are still holding out on upgrading your system solely because of the price of DDR4, do a bit of shopping around as you may be in for a pleasant surprise.

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"The Crucial DDR4-2133 32GB memory kit may look unassuming but its combination of huge capacity, good speeds, decent overclocking and a low price make for a perfect combination."

Here are some more Memory articles from around the web:

Memory

 

Samsung's HBM2 will be ready before you are

Subject: Memory | February 15, 2016 - 05:59 PM |
Tagged: Samsung, HBM2, Data Memory Systems

Samsung is ready to roll out the next generation of High Bandwidth Memory, aka HBM2, for your desktop and not just your next generation of GPU.  They have already begun production on 4GB HBM2 DRAM and promise 8GB DIMMs by the end of this year.  The modules will provide double the bandwidth of HBM1, up 256GB/s of bandwidth which is very impressive compared to the up to 70GB/s DDR4-3200 theoretically offers.

Not only is this technology going to appear in the next genertation of NVIDIA and AMD GPUs but could also work its way into main system memory.  Of course these DIMMs are not going to work with any desktop or mobile processor currently on the market but we will hopefully see new processors with compatible memory controllers in the near future.  You can also expect this to come with a cost, not just in expensive DIMMs at launch but also a comparible increaset in CPU prices as they will cost more to manufacture initially. 

It will be very interesting to see how this effects the overall market; will we see a split similar to what is currently seen in mainstream GPUs, a lower cost DDR version and a standard GDDR version?  The new market could see DDRx and HMBx models of CPUs and motherboards and could do the same for the GPU market, with the end of DDR on graphics cards.  If so will it spell the end of DDR5 development?  Interesting times to be living in, we should be hearing more from Samsung in the near future.

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You can read the full PR below.

If you thought the DDR4-3000 kit was excessive, meet Corsair's Vengeance LPX DDR4-4000

Subject: Memory | February 1, 2016 - 05:38 PM |
Tagged: ddr4-4000, corsair, Corsair Vengeance LPX

That is no typo, the 8GB Corsair Vengeance LPX kit which Hardware Canucks just reviewed is indeed 4000MHz effective at timings of 19-23-23-45.  The small size of the dual channel kit helps keep the MSRP to $225, affordable for what it is and not removing the purchase of a second kit from the realms of possibility.  However the question of performance remains, does a DDR4-4000 kit provide noticeable performance improvements or is it simply good for bragging rights for those few with a motherboard that can support it?  The results vary, especially when looking at memory timings and CPU overclocks compatible with the memory frequency however it was also clear that this memory could probably go faster ... if you had components that were capable of reaching those frequencies.

Corsair_VengeanceLPX_9.jpg

"The Corsair Vengeance LPX DDR4-4000 is one of the fastest, highest performance memory kits around but with a capacity of just 8GB, will it be enough for today's applications? "

Here are some more Memory articles from around the web:

Memory

Corsair Launches Faster Vengeance LPX DDR4 Memory Kits

Subject: Memory | January 31, 2016 - 10:00 PM |
Tagged: Vengeance LPX, ddr4, corsair

Earlier this month Corsair released new DDR4 memory kits under its Vengeance LPX brand. The kits come in 32 GB, 64 GB, and 128 GB capacities and come bundled with a 40mm "Vengeance Airflow" RAM cooler.

Corsair Vengeance LPX DDR4 128GB.jpg

At the top end, the 128 GB kit comes with eight 16 GB modules clocked at 3,000 MHz and with CAS latencies of 16-18-18-36. At stock speeds it is running at 1.35 volts. Stepping down to the lower capacities gets you faster DIMMs. Corsair has the 64 GB (4 x 16 GB) kit clocked at 3,333 MHz and runs at the same voltage and CAS latencies. The 64 GB kit does come with either black or red heat spreaders as well. Lastly, the 4 x 8 GB (32 GB) Vengeance LPX kit runs off of the same 1.35 volts but is clocked at 3,600 MHz (16-19-19-39 rated latencies). It also comes in black and red SKUs.

The memory kits are available now and are currently priced a bit below their MSRPs at Newegg. The 32 GB kit is $340 and the 64 GB kit is $526. Finally, the 3,000 MHz 128 GB kit will set you back $982. These prices seem more competitive than the last time I looked at DDR4, and there certainly does seem tot be some room for overclocking (especially on that 128 GB kit) so long as the motherboard can handle it!

Source: Corsair

GDDR5X Memory Standard Gets Official with JEDEC

Subject: Graphics Cards, Memory | January 22, 2016 - 11:08 AM |
Tagged: Polaris, pascal, nvidia, jedec, gddr5x, GDDR5, amd

Though information about the technology has been making rounds over the last several weeks, GDDR5X technology finally gets official with an announcement from JEDEC this morning. The JEDEC Solid State Foundation is, as Wikipedia tells us, an "independent semiconductor engineering trade organization and standardization body" that is responsible for creating memory standards. Getting the official nod from the org means we are likely to see implementations of GDDR5X in the near future.

The press release is short and sweet. Take a look.

ARLINGTON, Va., USA – JANUARY 21, 2016 –JEDEC Solid State Technology Association, the global leader in the development of standards for the microelectronics industry, today announced the publication of JESD232 Graphics Double Data Rate (GDDR5X) SGRAM.  Available for free download from the JEDEC website, the new memory standard is designed to satisfy the increasing need for more memory bandwidth in graphics, gaming, compute, and networking applications.

Derived from the widely adopted GDDR5 SGRAM JEDEC standard, GDDR5X specifies key elements related to the design and operability of memory chips for applications requiring very high memory bandwidth.  With the intent to address the needs of high-performance applications demanding ever higher data rates, GDDR5X  is targeting data rates of 10 to 14 Gb/s, a 2X increase over GDDR5.  In order to allow a smooth transition from GDDR5, GDDR5X utilizes the same, proven pseudo open drain (POD) signaling as GDDR5.

“GDDR5X represents a significant leap forward for high end GPU design,” said Mian Quddus, JEDEC Board of Directors Chairman.  “Its performance improvements over the prior standard will help enable the next generation of graphics and other high-performance applications.”

JEDEC claims that by using the same signaling type as GDDR5 but it is able to double the per-pin data rate to 10-14 Gb/s. In fact, based on leaked slides about GDDR5X from October, JEDEC actually calls GDDR5X an extension to GDDR5, not a new standard. How does GDDR5X reach these new speeds? By doubling the prefech from 32 bytes to 64 bytes. This will require a redesign of the memory controller for any processor that wants to integrate it. 

gddr5x.jpg

Image source: VR-Zone.com

As for usable bandwidth, though information isn't quoted directly, it would likely see a much lower increase than we are seeing in the per-pin statements from the press release. Because the memory bus width would remain unchanged, and GDDR5X just grabs twice the chunk sizes in prefetch, we should expect an incremental change. No mention of power efficiency is mentioned either and that was one of the driving factors in the development of HBM.

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Performance efficiency graph from AMD's HBM presentation

I am excited about any improvement in memory technology that will increase GPU performance, but I can tell you that from my conversations with both AMD and NVIDIA, no one appears to be jumping at the chance to integrate GDDR5X into upcoming graphics cards. That doesn't mean it won't happen with some version of Polaris or Pascal, but it seems that there may be concerns other than bandwidth that keep it from taking hold. 

Source: JEDEC

Samsung Mass Produces HBM2 Memory

Subject: Graphics Cards, Memory | January 19, 2016 - 11:01 PM |
Tagged: Samsung, HBM2, hbm

Samsung has just announced that they have begun mass production of 4GB HBM2 memory modules. When used on GPUs, four packages can provide 16GB of Video RAM with very high performance. They do this with a very wide data bus, which trade off frequency for transferring huge chunks. Samsung's offering is rated at 256 GB/s per package, which is twice what the Fury X could do with HBM1.

samsung-2016-4GB-HBM2-DRAM-structure_main.jpg

They also expect to mass produce 8GB HBM2 packages within this calendar year. I'm guessing that this means we'll see 32GB GPUs in the late-2016 or early-2017 time frame unless "within this year" means very, very soon (versus Q3/Q4). They will likely be for workstation or professional cards, but, in NVIDIA's case, those are usually based on architectures that are marketed to high-end gaming enthusiasts through some Titan offering. There's a lot of ways this could go, but a 32GB Titan seems like a bit much; I wouldn't expect that this affects the enthusiast gamer segment. It might mean that professionals looking to upgrade from the Kepler-based Tesla K-series might be waiting a little longer, maybe even GTC 2017. Alternatively, they might get new cards, just with a 16GB maximum until a refresh next year. There's not enough information to know one way or the other, but it's something to think about when more of it starts rolling in.

Samsung's HBM2 are compatible with ECC, although I believe that was also true for at least some HBM1 modules from SK Hynix.

Source: Samsung

G.Skill Launches 128GB DDR4 3,000 MHz Memory Kit

Subject: Memory | January 18, 2016 - 01:45 AM |
Tagged: xmp, X99, Ripjaws V, G.Skill, ddr4

G.Skill is adding a new DDR4 memory kit to its Ripjaws V series aimed at the Intel X99 platform. The new kit is comprised of eight matching 16 GB DIMMs for a total of 128 GB. Supporting Intel's XMP 2.0 standard, it comes stock clocked at 3,000 MHz with CAS latencies of 14-14-14-34.

GSkill Ripjaws V Red.png

The DDR4 kit is rated at 1.35V and will feature red or black aluminum heat spreaders in line with the company's other products. G.Skill claims that this is the world's fastest 128 GB kit running at 1.35 volts, and looking around the Internet this appears to be true. Corsair does have a Vengeance LPX kit that matches it in clockspeeds, but it has higher timings (higher latency) than G.Skill's modules.

Eight 16GB DIMMs is a lot of memory to be sure, and it is not going to come cheap. It will surely come in handy though for high performance workstations that need all the memory they can get.

G.Skill will be releasing the new DDR4 kit towards the end of January. It has not yet revealed official pricing, but going off of pricing for it's 64GB kit and the 128GB competition, I would expect it to fall around $850 to $900 USD.

What would you do with 128GB of system memory? I know that I would make one heck of a RAM Disk out of it!

Source: G.Skill

DDR3 versus DDR4; the Skylake showdown

Subject: Memory | December 22, 2015 - 03:16 PM |
Tagged: Z170, ddr4, ddr3

In Hardware Canucks recent review, they delve into the differences between running DDR3 versus DDR4 on Intel Z170 boards, which come in two versions each of which is compatible with one of the two types of memory.  They start out with a high level overview of the differences between the two memory technologies as there is more than just a simple difference in frequencies.  After covering some of the specifications which might influence your decision they then delve into the performance numbers.

One system is based on the Gigabyte Z170-HD3 with 8GB of Kingston HyperX Beast DDR3 while the second system uses an ASUS Maximus VIII Impact with Corsair Vengeance LPX DDR4, both systems use the Core i7 6700K processor.  The middle of the chart is the most interesting feature, where both memory kits are running at 2400MHz albeit at different timings.  DDR4 does come out on top but the margins are so close that if you need to shave some money off of your planned build you should definitely at least consider DDR3.

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"Intel's Skylake architecture is the only one that supports both DDR3 and DDR4 memory. But with all other things being equal, is one really "better" than the other on the Z170 platform?"

Here are some more Memory articles from around the web:

Memory

Samsung Announces Mass Production of 128GB DDR4 Sticks

Subject: Memory | November 26, 2015 - 05:23 PM |
Tagged: TSV, Samsung, enterprise, ddr4

You may remember Allyn's article about TSV memory back from IDF 2014. Through this process, Samsung and others are able to stack dies of memory onto a single package, which can increase density and bandwidth. This is done by punching holes through the dies and connecting them down to the PCB. The first analogy that comes to mind is an elevator shaft, but I'm not sure how accurate that is.

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Anyway, Samsung has been applying it to enterprise-class DDR4 memory, which leads to impressive capacities. 64GB sticks, individual sticks, were introduced in 2014. This year, that capacity doubles to 128GB. The chips are fabricated at 20nm and each contain 8Gb (1GB) per layer. Each stick contains 36 packages of four chips.

At the end of their press release, Samsung also mentioned that they intend to expand their TSV technology into “HBM and consumer products.”

Source: Samsung

New kit on the block; the KLEVV Cras DD4-3200MHz 16GB kit

Subject: Memory | November 5, 2015 - 04:17 PM |
Tagged: klevv, Hynix, ddr4-3200, cras

KLEVV is an unfamiliar brand but it falls under the purview of SK Hynix so they are not completely without a background in the field.  They have released a 4x4GB DDR4-3200 kit with timings of 16-18-18-36 @ 2T.  The plain exterior of the DIMMs is appealing but make note of the top strip of transparent looking material, that is for the LEDs which shine when the RAM is powered on and which Kitguru could not disable.  The kit did not like having its frequency increased however the timings can be improved, in Kitguru's case to 16-17-17-36 @ 1T though this had negligible inpact on performance.  If you are thinking about picking them up, be aware they are taller than many DIMMs and may interfere with larger coolers.

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"You may not have heard of KLEVV – the newest player on the consumer memory scene. KLEVV’s parent company, Essencore, falls under the same SK Group umbrella corporation as semiconductor giant SK Hynix. We are looking at KLEVV‘s flagship DDR4 memory line – the Cras series."

Here are some more Memory articles from around the web:

Memory

 

Source: Kitguru

Super fast two wheeler or a solid quadrunner? A tale of two RAM kits

Subject: Memory | October 15, 2015 - 05:30 PM |
Tagged: quad channel, patriot, G.Skill, dual channel, DDR4-3000, ddr4-2400, 16GB

MadShrimps recently wrapped up two reviews featuring 16GB DDR4 kits.  The first is the $170 G.SKILL DDR4-3000 kit with two 8GB modules and timings of 15-15-15-35 while the second is the $106 Patriot VIPER 4 Series DDR4-2400 which has four 4GB DIMMs and timings of 15-15-15-35.  This provides a great way to compare the performance delta between a quad channel kit with lower frequencies against a dual channel kit with higher frequencies.  As they have used the same tests and lowered the G.SKILL to comparable frequencies the results of the charts are quite informative and demonstrate how little performance difference there is between these two kits.

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"With the F4-3000C15D-16GVRB Ripjaws V kit from G.SKILL we will have the same memory capacity as the Patriot Viper 4 kit which we have recently reviewed, but with half the number of modules. The higher memory speed of 3000MHz at stock has also an impact on the operating voltage, which is now 1.35V instead of 1.2V and overclocking over this particular speed will usually need some extra voltage adjustments on the CPU side, a solid motherboard and UEFI construction but also a good CPU memory controller."

Here are some more Memory articles from around the web:

Memory

Source: Mad Shrimps