Corsair Quantifies the Benefits of Overclocking

Subject: Editorial, General Tech, Graphics Cards, Processors, Memory, Systems | January 20, 2014 - 02:40 AM |
Tagged: corsair, overclocking

I rarely overclock anything and this is for three main reasons. The first is that I have had an unreasonably bad time with computer parts failing on their own. I did not want to tempt fate. The second was that I focused on optimizing the operating system and its running services. This was mostly important during the Windows 98, Windows XP, and Windows Vista eras. The third is that I did not find overclocking valuable enough for the performance you regained.

A game that is too hefty to run is probably not an overclock away from working.

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Thankfully this never took off...

Today, overclocking is easier and safer than ever with parts that basically do it automatically and back off, on their own, if thermals are too aggressive. Several components are also much less locked down than they have been. (Has anyone, to this day, hacked the locked Barton cores?) It should not be too hard to find a SKU which encourages the enthusiast to tweak some knobs.

But how much of an increase will you see? Corsair has been blogging about using their components (along with an Intel processor, Gigabyte motherboard, and eVGA graphics card because they obviously do not make those) to overclock. The cool part is they break down performance gains in terms of raising the frequencies for just the CPU, just the GPU, just the RAM, or all of the above together. This breakdown shows how each of the three categories contribute to the whole. While none of the overclocks are dramatic, Corsair is probably proud of the 5% jump in Cinebench OpenGL performance just by overclocking the RAM from 1600 MHz to 1866 MHz without touching the CPU or GPU.

It is definitely worth a look.

Source: Corsair
Author:
Manufacturer: Asus

A Refreshing Change

Refreshes are bad, right?  I guess that depends on who you talk to.  In the case of AMD, it is not a bad thing.  For people who live for cutting edge technology in the 3D graphics world, it is not pretty.  Unfortunately for those people, reality has reared its ugly head.  Process technology is slowing down, but product cycles keep moving along at a healthy pace.  This essentially necessitates minor refreshes for both AMD and NVIDIA when it comes to their product stack.  NVIDIA has taken the Kepler architecture to the latest GTX 700 series of cards.  AMD has done the same thing with the GCN architecture, but has radically changed the nomenclature of the products.

Gone are the days of the Radeon HD 7000 series.  Instead AMD has renamed their GCN based product stack with the Rx 2xx series.  The products we are reviewing here are the R9 280X and the R9 270X.  These products were formerly known as the HD 7970 and HD 7870 respectively.  These products differ in clock speeds slightly from the previous versions, but the differences are fairly minimal.  What is different are the prices for these products.  The R9 280X retails at $299 while the R9 270X comes in at $199.

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Asus has taken these cards and applied their latest DirectCU II technology to them.  These improvements relate to design, component choices, and cooling.  These are all significant upgrades from the reference designs, especially when it comes to the cooling aspects.  It is good to see such a progression in design, but it is not entirely surprising given that the first HD 7000 series debuted in January, 2012.

Click here to read the rest of the review!

CES 2014: VisionTek Launches Liquid Cooled CryoVenom R9 290 Graphics Card

Subject: Graphics Cards | January 10, 2014 - 02:19 AM |
Tagged: water cooling, VisionTek, r9 290, liquid cooling, CES 2014, CES, amd

VisionTek unveiled a new custom liquid cooled graphics card based on AMD's R9 290 GPU. The CryoVenom R9 290 900675 card uses a custom engineered full cover EK water block that allows VisionTek to wring the full potential out of AMD's Hawaii GPU by overclocking it 24% over stock clockspeeds while running much cooler than the fan cooled reference cards.

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As a refresher, the AMD R9 290 GPU at the heart of the new graphics card is based on AMD's latest Hawaii architecture and features 2,560 shaders, 160 texture units, and 64 ROPs. The GPU interfaces with 4GB of GDDR5 memory on a 512-bit bus. The reference R9 290 GPUs have a GPU clockspeed of 947 MHz and memory clockspeed of 1250 MHz (note the clockspeed problems of reference cards due to the coolers used).

The VisionTek card ditches a fan HSF in favor of a full cover waterblock that cools the GPU, memory, and VRMs. It has a nickel-plated copper base with an acrylic top. Water is channeled through a micro-fin array designed to cool the card without putting strain on low pressure pumps. A black anodized aluminum backplate adds support and passive (additional) VRM cooling to the graphics card. The CryoVenom maintains the two DL-DVI, one HDMI, and one DisplayPort video output connections of reference cards, however.

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Going with a liquid cooler has allowed VisionTek to ratchet up the clockspeeds to an impressive 1,175 MHz for the GPU and 1,450 MHz for the memory. That is a respectable 24% and 16% increase over stock, respectively and is estimated to offer up to 38% better overall performance at those overclocked speeds. Perhaps even more impressive than the overclocks themselves is that VisionTek claims to be able to keep the card just under 52-degrees C under load which is a significant improvement over stock!

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According to VisionTek, each Cryovenom R9 290 graphics card is custom build and put through a variety of burn in tests to ensure that it can operate at the rated overclocks and is free of water leaks when attached to a loop.

The liquid cooled cards have an MSRP of $550 and will be available shortly (the cards are currently out of stock on the VisionTek site). Here's hoping that VisionTek is able to keep the cards at MSRP, because even at a $150 premium over the MSRP of reference cards it would still be a good deal at a time when reference cards are being sold at prices well over MSRP.

Coverage of CES 2014 is brought to you by AMD!

PC Perspective's CES 2014 coverage is sponsored by AMD.

Follow all of our coverage of the show at http://pcper.com/ces!

Source: VisionTek

CES 2014: Gigabyte R9 290X and GTX 780 Ti WindForce Enthusiast Graphics Cards

Subject: Graphics Cards, Shows and Expos | January 9, 2014 - 06:05 PM |
Tagged: CES, CES 2014, gigabyte, R9 290X, gtx 780 ti, windforce

While the world still waits for stock of the custom cooled R9 290X and R9 290 cards from AMD's partners to show up in stores, Gigabyte was showcasing its WindForce models on the floor at CES 2014.

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The Gigabyte GV-R929XOC-4GD is an R9 290X graphics cards that includes the company custom designed WindForce, triple fan cooler.  The cooler is rated at 450 watts of dissipation, but hopefully you'll never actually be drawing that from this single GPU graphics card.  The core clock on this model will be slightly overclocked, going from the stock 1000 MHz to 1040 MHz.  Hopefully we'll have a review sample soon so we can verify that it maintains that overclocked clock speed throughout the gaming workloads.

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Using the very same cooler is the GV-N78TGHZ-3GD based on the GeForce GTX 780 Ti GPU.  In fact, without my tell you which card was which, you'd likely have no way to tell them apart without looking at the PCB more closely. Gigabyte will be setting the base clock on this model at 1085 MHz and the Boost clock at 1150 MHz.  

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The cards will also include a back plate on the rear of the PCB to help protect the components and ICs while also strengthening the board during shipping general use.  Gigabyte says these cards will only carry and MSRP that is $20-50 more than the reference cards so look for each of them this month!

Coverage of CES 2014 is brought to you by AMD!

PC Perspective's CES 2014 coverage is sponsored by AMD.

Follow all of our coverage of the show at http://pcper.com/ces!

CES 2014: MSI Previews the Radeon R9 290X Lightning

Subject: Graphics Cards, Shows and Expos | January 9, 2014 - 01:40 PM |
Tagged: CES, CES 2014, msi, 290x, radeon, amd, Lightning, R9 290X

The MSI Lightning series of graphics cards continues to be one of the best high end enthusiast lines available as we have seen with our reviews of the MSI GeForce GTX 780 Lightning and the R7970 Lightning.  At CES this week in Las Vegas the company was showcasing the upcoming card in the series based on the latest AMD Hawaii GPU.

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The MSI R9 290X Lightning features an updated triple cooler design and heat pipe cooler that appears to be truly impressive.  If the weight of the card is any indication, this GPU should be running considerably cooler than most of the competition.  

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MSI has included a dual BIOS option, updated Military Class 4 components and hardware but be prepared to sacrifice three slots of your motherboard to this monster.  Power requirements are interesting with a pair of 8-pin power connectors and a single 6-pin connector, though the 6-pin is going to optional.

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The power of the card still comes from AMD's latest R9 290X Hawaii GPU, so you can be sure you'll have enough gaming power for just about any situation.  We implored MSI to make sure that the overclocks of this card, probably in the 1050-1100 MHz range, are maintained consistently through extended game play to avoid any awkward variance discussions. 

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Coverage of CES 2014 is brought to you by AMD!

PC Perspective's CES 2014 coverage is sponsored by AMD.

Follow all of our coverage of the show at http://pcper.com/ces!

PowerColor at CES 2014: Bigger is Better!

Subject: Graphics Cards | January 8, 2014 - 08:25 PM |
Tagged: triple fans, R9 290X, r9 290, powercolor, liquid cooling, cooling, CES 2014, amd

The nice folks at PowerColor were foolish enough to invite us into their suite full of video cards.  Unhappily, we were unable to abscond with a few items that we will list here.  PowerColor has a smaller US presence than other manufacturers, but they are not afraid to experiment with unique cooling solutions for their cards.

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A sharp looking card that is remarkably heavy.

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Cooling is provided by EKWB.

In their suite they were showing off two new products based on the AMD R9 290X chips.  The first was actually released back in December, 2013.  This is the liquid cooling version of the AMD R9 290X.  This little number comes in at a hefty $799.  When we think about this price, it really is not that out of line.  It features a very high end liquid cooling block that is extremely heavy and well built.  The PCB looks like it mimics the reference design, but the cooling is certainly the unique aspect of this card.  Again, this card is extremely heavy and well built.

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Three fans are too much!

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The display outputs are the same as the reference design, which is not a bad thing.

The second card is probably much more interesting to most users.  This is a new cooling solution from PowerColor that attaches to the AMD R9 290X.  The PCS+ cooler features three fans and is over two slots wide (we can joke about it being 2.5 slots wide, but I doubt anyone can use that extra half slot that is left over).  PCS+ stands for Professional Cooling Systems.  The board again looks like it is based on the reference PCB, but the cooler is really where the magic lies.  This particular product should be able to compete with the other 3rd party coolers that we have seen applied to this particular chip from AMD.  As such, it should be able to not only keep the clockspeed at a steady state throughout testing/gaming, but it should also allow a measure of overclocking to be applied.

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The back is protected/supported by a large and stiff plate.  Cooling holes help maximize performance.

This card will be offered at $679 US and will be available on January 15.  The amount of units shipped will likely be fairly small, so keep a good eye out.  AMD is ultimately in charge of providing partners with chips to integrate into their respective products, and so far I think those numbers have been a little bit more limited than hoped.  It also doesn’t help that the market price has been inflated by all the coin miners that have been purchasing up the latest GCN based AMD cards for the past several months.

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There is no denying that this is a large cooler.  Hopefully cooling performance will match or exced that of products Ryan has already reviewed.

We also expect to see the R9 290 version of this card around the same timeframe.  This is supposed to be released around the same time as the bigger, more expensive R9 290X.  There should be more PowerColor content at PCPer over the next few months, so please stay tuned!

Coverage of CES 2014 is brought to you by AMD!

PC Perspective's CES 2014 coverage is sponsored by AMD.

Follow all of our coverage of the show at http://pcper.com/ces!

 

Source: PowerColor

CES 2014: NVIDIA Shows Modified ASUS PQ321Q 4K Monitor with G-Sync

Subject: Graphics Cards, Displays | January 8, 2014 - 04:01 AM |
Tagged: pq321q, PQ321, nvidia, gsync, g-sync, CES 2014, CES, asus, 4k

Just before CES Allyn showed you the process of modifying the ASUS VG248QE to support NVIDIA G-Sync variable refresh rate technology.  It wasn't the easiest mod we have ever done but even users without a lot of skill will be able to accomplish it.  

But at the NVIDIA booth at CES this year the company was truly showing off G-Sync technology to its fullest capability.  By taking the 3840x2160 ASUS PQ321Q monitor and modifying it with the same G-Sync module technology we were able to see variable refresh rate support in 4K glory.

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Obviously you can't see much from the photo above about the smoothness of the animation, but I can assure you that in person this looks incredible.  In fact, 4K might be the perfect resolution for G-Sync to shine as running games at that high of a resolution will definitely bring your system to its knees, dipping below that magical 60 Hz / FPS rate.  But when it does with this modified panel, you'll still get smooth game play and a a tear-free visual experience.

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The mod is actually using the same DIY kit that Allyn used in his story though it likely has a firmware update for compatibility.  Even with the interesting debate from AMD about the support for VRR in the upcoming DisplayPort 1.3 standard, it's impossible to not see the ASUS PQ321Q in 4K with G-Sync and instantly fall in love with PCs again.

Sorry - there are no plans to offer this upgrade kit for ASUS PQ321Q owners!

Coverage of CES 2014 is brought to you by AMD!

PC Perspective's CES 2014 coverage is sponsored by AMD.

Follow all of our coverage of the show at http://pcper.com/ces!

Author:
Manufacturer: AMD

DisplayPort to Save the Day?

During an impromptu meeting with AMD this week, the company's Corporate Vice President for Visual Computing, Raja Koduri, presented me with an interesting demonstration of a technology that allowed the refresh rate of a display on a Toshiba notebook to perfectly match with the render rate of the game demo being shown.  The result was an image that was smooth and with no tearing effects.  If that sounds familiar, it should.  NVIDIA's G-Sync was announced in November of last year and does just that for desktop systems and PC gamers.

Since that November unveiling, I knew that AMD would need to respond in some way.  The company had basically been silent since learning of NVIDIA's release but that changed for me today and the information discussed is quite extraordinary.  AMD is jokingly calling the technology demonstration "FreeSync".

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Variable refresh rates as discussed by NVIDIA.

During the demonstration AMD's Koduri had two identical systems side by side based on a Kabini APU . Both were running a basic graphics demo of a rotating windmill.  One was a standard software configuration while the other model had a modified driver that communicated with the panel to enable variable refresh rates.  As you likely know from our various discussions about variable refresh rates an G-Sync technology from NVIDIA, this setup results in a much better gaming experience as it produces smoother animation on the screen without the horizontal tearing associated with v-sync disabled.  

Obviously AMD wasn't using the same controller module that NVIDIA is using on its current G-Sync displays, several of which were announced this week at CES.  Instead, the internal connection on the Toshiba notebook was the key factor: Embedded Display Port (eDP) apparently has a feature to support variable refresh rates on LCD panels.  This feature was included for power savings on mobile and integrated devices as refreshing the screen without new content can be a waste of valuable battery resources.  But, for performance and gaming considerations, this feature can be used to initiate a variable refresh rate meant to smooth out game play, as AMD's Koduri said.

Continue reading our thoughts on AMD's initial "FreeSync" variable refresh rate demonstration!!

ASUS ROG Poseidon Series Liquid Cooled Graphics Cards

Subject: Graphics Cards, Cases and Cooling | January 6, 2014 - 04:00 PM |
Tagged: water cooling, ROG, nvidia, gtx 780, gtx 770, CES 2014, CES, asus

In keeping with their tradition of pushing the innovation and performance boundaries through their ROG product line, ASUS today released NVIDIA-based 7-seried video cards featuring as part of their Poseidon series of liquid cooled products. ASUS released both a GTX 780 and GTX 770-based product with the hybrid Poseidon cooling solution.

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Courtesy of ASUS

All Poseidon series graphics cards come with a hybrid cooling solution, using a combination of fan-based and water-based cooling to propel these cards to new performance heights. The card's GPU is cooled with the DirectCU H20 cooler with water pathed through the integrated barbs to the copper-based cooler. The water inlets are threaded, accepting G1/4" sized male fittings. The memory and VRM components are cooled by a massive dual-fan heat pipe, exhausting air through the rear panel port. Both cards feature the red and black ROG coloration with the Poseidon series name displayed prominently along the right front edge of the card.

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Courtesy of ASUS

Both Poseidon series graphics cards, the ROG Poseidon GTX 770 and ROG Poseidon GTX 780, include ASUS' DIGI+ VRM and Super Allow Power power circuitry to ensure stability and component life under the most grueling conditions. When paired with the Poseidon cooling, the GPU ran 20% cooler and 3 times quieter than a comparable reference card with card operating temperatures 16 C lower than the same reference solution.

More after the break.

Coverage of CES 2014 is brought to you by AMD!

PC Perspective's CES 2014 coverage is sponsored by AMD.

Follow all of our coverage of the show at http://pcper.com/ces!

Source: ASUS
Manufacturer: NVIDIA G-SYNC

Introduction and Unboxing

Introduction:

We've been covering NVIDIA's new G-Sync tech for quite some time now, and displays so equipped are finally shipping. With all of the excitement going on, I became increasingly interested in the technology, especially since I'm one of those guys who is extremely sensitive to input lag and the inevitable image tearing that results from vsync-off gaming. Increased discussion on our weekly podcast, coupled with the inherent difficulty of demonstrating the effects without seeing G-Sync in action in-person, led me to pick up my own ASUS VG248QE panel for the purpose of this evaluation and review. We've generated plenty of other content revolving around the G-Sync tech itself, so lets get straight into what we're after today - evaluating the out of box installation process of the G-Sync installation kit.

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Unboxing:

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All items are well packed and protected.

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Included are installation instructions, a hard plastic spudger for opening the panel, a couple of stickers, and all necessary hardware bits to make the conversion.

Read on for the full review!