Subject: Motherboards | October 2, 2016 - 03:20 AM | Tim Verry
Tagged: Zen, micro ATX, Excavator, Bristol Ridge, b350, amd, AM4
Thanks to a recent leak over at Bodnara.co.kr (which has since been taken down), pictures emerged online that give a first look at an AMD socket AM4 motherboard using the mid-range B350 chipset. The Gigabyte B350M-DS3H is a Micro ATX motherboard supporting Bristol Ridge processors at launch and Zen-based processors next year.
The mid-range AM4 board has a very simple layout that leaves little mystery. There are no large heatsinks and no northbridge thanks to AMD moving most of the connectivity to the SoC itself. In fact there is only a small passively cooled chip in the bottom right corner (the B350 chipset) that between the SoC and it can offer up PCI-E 3.0, SATA 6.0, USB 3.1, USB 3.0, NVMe SSD, and DDR4 memory support. This post outlines how the duties are split between the processor and southbridge.
The B350M-DS3H is powered by a 24-pin ATX and 8-pin EPS and Gigabyte is using a seven phase VRM to power the processor and memory. The board hosts a 1331 pin AM4 socket up top with four DDR4 slots to the right. The CMOS battery is placed just above the PCI-E slots in a position that Morry would be proud of (so long as your CPU cooler is not too massive). Below that are two PCI-E 3.0 x16 slots (electrically x16/x4 or x8/x8), a single PCI-E 3.0 x1 slot, and a NVMe M.2 (PCI-E) slot. The bottom right corner of the board hosts six SATA 6 Gbps ports.
Rear I/O on the AMD motherboard includes:
- 2 x USB 2.0
- 1 x PS/2
- 3 x Video Outputs
- 1 x VGA
- 1 x DVI
- 1 x HDMI
- 4 x USB 3.0
- 2 x USB 3.1
- 1 x Gigabit Ethernet
- 3 x Audio Jacks
Several websites are reporting that AMD will be unleashing the floodgates of socket AM4 motherboards using the A320 and B350 chipsets in October (it is saving the launch of the enthusiast X370 chipset for next year alongside Summit Ridge). I have to say that it is nice to see an AMD motherboard with updated I/O which is a nice change from the ancient 990X AM3+ platform and even the FM2+ motherboards which were newer but still .ot as full featured as the competition.
- AMD Officially Launches Bristol Ridge Processors And Zen-Ready AM4 Platform
- Report: AMD Socket AM4 Compatible with Existing AM2/AM3 Coolers
- AMD Zen Architecture and Performance Preview
- AMD Introduces 7th Generation APUs: Bristol Ridge Takes Center Stage
Subject: Motherboards, Processors | September 8, 2016 - 12:08 AM | Tim Verry
Tagged: Zen, Summit Ridge, Excavator, Bristol Ridge, amd, A12-9800
This week AMD officially took the wraps off of its 7th generation APU lineup that it introduced back in May. Previously known as Bristol Ridge, AMD is launching eight new processors along with a new desktop platform that finally brings next generation I/O to AMD systems.
Bristol Ridge maintains the Excavator CPU cores and GCN GPU cores of Carrizo, but on refreshed silicon with performance and power efficiency gains that will bring the architecture started by Bulldozer to an apex. These will be the last chips of that line, and wil be succeeded by AMD's new "Zen" architecture in 2017. For now though, Bristol Ridge delivers as much as 17% higher per thread CPU performance and 27% higher graphics performance while using significantly lower power than its predecessors. Further, AMD has been able to (thanks to various process tweaks that Josh talked about previously) hit some impressive clock speeds with these chips enabling AMD to better compete with Intel's Core i5 offerings.
At the top end AMD has the (65W) quad core A12-9800 running at 3.8 GHz base and 4.2 GHz boost paired with GCN 3.0-based Radeon R7 graphics (that support VP9 and HEVC acceleration). These new Bristol Ridge chips are able to take advantage of DDR4 clocked up to 2400 MHz. For DIY PC builders planning to use dedicated graphics, AMD has the non-APU Athlon X4 950 which features four CPU cores at 3.5 GHz base and 3.8 GHz boost with a 65W TDP. While it is not clocked quite as high as its APU counterpart, it should still prove to be a popular choice for budge builds and will replace the venerable Athlon X4 860 and will also be paired with an AM4 motherboard that will be ready to accept a new Zen-based "Summit Ridge" CPU next year.
The following table lists the eight new 7th generation "Bristol Ridge" processors and their specifications.
|CPU Cores||CPU Clocks Base / Boost||GPU||GPU CUs||GPU Clocks (Max)||TDP|
|4||3.8 GHz / 4.2 GHz||Radeon R7||8||1,108 MHz||65W|
|A12-9800E4||4||3.1 GHz / 3.8 GHz||Radeon R7||8||900 MHz||35W|
|A10-9700||4||3.5 GHz / 3.8 GHz||Radeon R7||6||1,029 MHz||65W|
|A10-9700E||4||3.0 GHz / 3.5 GHz||Radeon R7||6||847 MHz||35W|
|A8-9600||4||3.1 GHz / 3.4 GHz||Radeon R7||6||900 MHz||65W|
|A6-9500||2||3.5 GHz / 3.8 GHz||Radeon
|A6-9500E||2||3.0 GHz / 3.4 GHz||Radeon
|Athlon X4 950||4||3.5 GHz / 3.8 GHz||None||0||N/A||65W|
To expand on the performance increases of Bristol Ridge, AMD compared the A12-9800 to the previous generation A10-8850 as well as Intel's Core i5-6500. According to the company, the Bristol Ridge processor handily beats the Carrizo chip and is competitive with the Intel i5. Specifically, when comparing Bristol Ridge and Carrizo, AMD found that the A12-9800 scored 3,521.25 in 3DMark 11 while the A10-8850 (95W Godavari) scored 2,880. Further, when compared in Cinebench R11.5 1T the A12-980 scored 1.21 versus the A10-8850's 1.06. Not bad when you consider that the new processor has a 30W lower TDP!
With that said, the comparison to Intel is perhaps most interesting to the readers. In this case, the A12-9800 is about where you would expect though that is not necessarily a bad thing. It does pull a bit closer to Intel in CPU and continues to offer superior graphics performance.
|AMD A12-9800 (65W)||Intel Core i5-6500 (65W)||AMD A10-8850 (95W)|
3DMark 11 Performance
|PCMark 8 Home Accelerated||3,483.25||3,702||Not run|
|Cinebench R11.5 1T||1.21||Not run||1.06|
Specifically, in 3DMark 11 Performance the A12-9800's score of 3,521.25 is quite a bit better than the Intel i5-6500's 1,765.75 result. However, in the more CPU focused PCMark 8 Home Accelerated benchmark the Intel comes out ahead with a score of 3,702 versus the AMD A12-9800's score of 3,483.25. If the price is right Bristol Ridge does not look too bad on paper, assuming AMD's testing holds true in independent reviews!
The AM4 Platform
Alongside the launch of desktop 7th generation APUs, AMD is launching a new AM4 platform that supports Bristol Ridge and is ready for Zen APUs next year. The new platform finally brings new I/O technologies to AMD systems including PCI-E 3.0, NVMe, SATA Express, DDR4, and USB 3.1 Gen 2.
According to Digital Trends, AMD's AM4 desktop platform wil span all the way from low end to enthusiast motherboards and these boards will be powered by one of three new chipsets. The three new chipsets are the B350 for mainstream, A320 for "essential," and X/B/A300 for small form factor motherboards. Notably missing is any mention of an enthusiast chipset, but one is reportedly being worked on and will arive closer to the launch of Zen-based processors in 2017.
The image below outlines the differences in the chipsets. Worth noting is that the APUs themselves will handle the eight lanes of PCI-E 3.0, dual channel DDR4, four USB 3.1 Gen 1 ports, and two SATA 6Gbps and two NVMe or PCI-E 3.0 storage devices. This leaves PCI-E 2.0, SATA Express, additional SATA 6Gbps, and USB 3.1 Gen 2 connection duties to the chipsets.
As of today, AMD has only announced the availability of AM4 motherboards and 7th generation APUs for OEM systems (with design wins from HP and Lenovo so far). The company will be outlining the channel / DIY PC builder lineup and pricing at a later (to be announced date).
I am looking forward to Zen and in a way the timing of Bristol Ridge seems strange. On the other hand, for OEMs it should do well and hold them over until then (heh) and enthusiasts / DIY builders are able to buy into Bristol Ridge knowing that they will be able to upgrade to Zen next year (while getting better than Carrizo performance with less power and possibly better overclocking) is not a bad option so long as the prices are right!
The full press blast is included below for more information on how they got their benchmark results.
Bristol Ridge Takes on Mobile: E2 Through FX
It is no secret that AMD has faced an uphill battle since the release of the original Core 2 processors from Intel. While stayed mostly competitive through the Phenom II years, they hit some major performance issues when moving to the Bulldozer architecture. While on paper the idea of Chip Multi-Threading sounded fantastic, AMD was never able to get the per thread performance up to expectations. While their CPUs performed well in heavily multi-threaded applications, they just were never seen in as positive of a light as the competing Intel products.
The other part of the performance equation that has hammered AMD is the lack of a new process node that would allow it to more adequately compete with Intel. When AMD was at 32 nm PD-SOI, Intel had introduced its 22nm TriGate/FinFET. AMD then transitioned to a 28nm HKMG planar process that was more size optimized than 32nm, but did not drastically improve upon power and transistor switching performance.
So AMD had a double whammy on their hands with an underperforming architecture and limitted to no access to advanced process nodes that would actually improve their power and speed situation. They could not force their foundry partners to spend billions on a crash course in FinFET technology to bring that to market faster, so they had to iterate and innovate on their designs.
Bristol Ridge is the fruit of that particular labor. It is also the end point to the architecture that was introduced with Bulldozer way back in 2011.
Fighting for Relevance
AMD is still kicking. While the results of this past year have been forgettable, they have overcome some significant hurdles and look like they are improving their position in terms of cutting costs while extracting as much revenue as possible. There were plenty of ups and downs for this past quarter, but when compared to the rest of 2015 there were some solid steps forward here.
The company reported revenues of $958 million, which is down from $1.06 billion last quarter. The company also recorded a $103 million loss, but that is down significantly from the $197 million loss the quarter before. Q3 did have a $65 million write-down due to unsold inventory. Though the company made far less in revenues, they also shored up their losses. The company is still bleeding, but they still have plenty of cash on hand for the next several quarters to survive. When we talk about non-GAAP figures, AMD reports a $79 million loss for this past quarter.
For the entire year AMD recorded $3.99 billion in revenue with a net loss of $660 million. This is down from FY 2014 revenues of $5.51 billion and a net loss of $403 million. AMD certainly is trending downwards year over year, but they are hoping to reverse that come 2H 2016.
Graphics continues to be solid for AMD as they increased their sales from last quarter, but are down year on year. Holiday sales were brisk, but with only the high end Fury series being a new card during this season, the impact of that particular part was not as great as compared to the company having a new mid-range series like the newly introduced R9 380X. The second half of 2016 will see the introduction of the Polaris based GPUs for both mobile and desktop applications. Until then, AMD will continue to provide the current 28 nm lineup of GPUs to the market. At this point we are under the assumption that AMD and NVIDIA are looking at the same timeframe for introducing their next generation parts due to process technology advances. AMD already has working samples on Samsung’s/GLOBALFOUNDRIES 14nm LPP (low power plus) that they showed off at CES 2016.
Subject: General Tech | October 22, 2015 - 06:38 PM | Jeremy Hellstrom
Tagged: Merlin Falcon, Excavator, carrizo, amd
On your latest flight you may have noticed some branding on the displays powering the schedules and in-flight entertainment, or perhaps if you were flying to Vegas you didn't notice it until you were playing the slots. If you were paying attention you would have noticed that the display was powered by AMD, as are many POS, medical and even military displays. A new series of Excavator based processors was announced today, the Merlin Falcon which has four Excavator cores, a Radeon third-gen GCN GPU and support for both DDR3 and DDR4 RAM.
Yes that is right, the first DDR4 chip from AMD is arriving but you won't be running it in your desktop. You should probably be jealous as this processor will have HSA 1.0, hardware based HEVC/H.265 video decode, DirectX 12 support and even the ARM co-processor that provides AMD's new Secure Processor feature. There is more at The Register if you follow the link.
"AMD will today unveil Merlin Falcon, its latest R-series processor aimed at industrial systems, medical devices, gambling machines, digital signs, military hardware, and so on."
Here is some more Tech News from around the web:
- SanDisk, Toshiba to jointly make 3D flash memory @ DigiTimes
- Michael Dell berates Microsoft's Nadella about high price of Surface tablet @ The Inquirer
- Square Enix To Concentrate On Remaking Their Back Catalog @ Slashdot
- Marvell, Longsys partner to make SSDs @ DigiTimes
- IoT's sub-GHz 802.11ah Wi-Fi will be dead on arrival, warn analysts @ The Register
- Amazon Fire TV Review @ Hardware Secrets
Subject: Processors | October 5, 2015 - 08:48 PM | Jeremy Hellstrom
Tagged: amd, PRO A12-8800B, Excavator, carrizo pro, Godavari Pro
AMD recently announced a Pro lineup of Excavator based chips which match their Carrizo and Godavari current lineup as far as the specifications go. This was somewhat confusing as there were no real features at first glance that separated the Pro chips from the non-Pro cousins in the press material from AMD or HP. Tech ARP posted the slides from the reveal and they note one key feature that separates the two chip families and why businesses should be interested in them. These are hand-picked dies taken from hand picked wafers which AMD chose as they represent the best of the chips they have fabbed. You should expect performance free from any possible defects which made it past quality control and if you do have bad enough luck to find a way to get a less than perfect chip they come with a 36 month extended OEM warranty.
In addition to being hand picked, machines with an AMD Pro chip will also come with an ARM TrustZone Technology based AMD Secure Processor onboard. If you use a mobile device which has TPM and a crypto-processor onboard you will be familar with the technology; AMD is the first to bring this open sourced security platform to Windows based machines. Small business owners may also be interested the AMD PRO Control Center which is an inventory management client which will not cost as much as ones designed for Enterprise and in theory should be easier to use as well.
This news is of lesser interest to the gamer you never know, if you can secure one of these hand picked chips you may find it gives you a bit more headroom for tweaking than your average run of the mill Godavari or Carrizo would.
"We will now only show you the presentation slides, we also recorded the entire conference call and created a special video presentation based on the conference call for you. We hope you enjoy our work."
Here are some more Processor articles from around the web:
- The Skylake Core i3-6320 is the gamer's new best friend @ The Tech Report
- Core i7-5775C CPU Review @ Hardware Secrets
- Pentium N3700 CPU Review @ Hardware Secrets
Subject: Processors | April 27, 2015 - 10:06 PM | Josh Walrath
Tagged: Zen, Steamroller, Kaveria, k12, Excavator, carrizo, bulldozer, amd
There are some pretty breathless analysis of a single leaked block diagram that is supposedly from AMD. This is one of the first indications of what the Zen architecture looks like from a CPU core standpoint. The block diagram is very simple, but looks in the same style as what we have seen from AMD. There are some labels, but this is almost a 50,000 foot view of the architecture rather than a slightly clearer 10,000 foot view.
There are a few things we know for sure about Zen. It is a clean sheet design that moves away from what AMD was pursuing with their Bulldozer family of cores. Zen gives up CMT for SMT support for handling more threads. The design has a cluster of four cores sharing 8 MB of L3 cache, with each core having access to 512 KB of L2 cache. There is a lot of optimism that AMD can kick the trend of falling more and more behind Intel every year with this particular design. Jim Keller is viewed very positively due to his work at AMD in the K7 through K8 days, as well as what he accomplished at Apple with their ARM based offerings.
One of the first sites to pick up this diagram wrote quite a bit about what they saw. There was a lot of talk about, “right off the bat just by looking at the block diagram we can tell that Zen will have substantially higher single threaded performance compared to Excavator and the Bulldozer family.” There was the assumption that because it had two 256-bit FMACs that it could fuse them to create a single 512 bit AVX product.
These assumptions are pretty silly. This is a very simple block diagram that answers few very important questions about the architecture. Yes, it shows 6 int pipelines, but we don’t know how many are address generation vs. execution units. We don’t know how wide decode is. We don’t know latency to L2 cache, much less how L3 is connected and shared out. So just because we see more integer pipelines per core does not automatically mean, “Da, more is better, strong like tractor!” We don’t know what improvements or simplifications we will see in the schedulers. There is no mention of the front-end other than Fetch and Decode. How about Branch Prediction? What is the latency for the memory controller when addressing external memory?
Essentially, this looks like a simplified way of expressing to analysts that AMD is attempting to retain their per core integer performance while boosting floating point/AVX at a similar level. Other than that, there is very little that can be gleaned from this simple block diagram.
Other leaks that are interesting concerning Zen are the formats that we will see these products integrated into. One leak detailed a HPC aimed APU that features 16 Zen cores with 32 MB of L3 cache attached to a very large GPU. Another leak detailed a server level chip that will support 32 cores and will be seen in 2P systems. Zen certainly appears to be very flexible, and in ways it reminds me of a much beefier Jaguar type CPU. My gut feeling is that AMD will get closer to Intel than it has been in years, and perhaps they can catch Intel by surprise with a few extra features. The reality of the situation is that AMD is far behind and only now are we seeing pure-play foundries start to get even close to Intel in terms of process technology. AMD is very much at a disadvantage here.
Still, the company needs to release new, competitive products that will refill the company coffers. The previous quarter’s loss has dug into cash reserves, but AMD is still stable in terms of cash on hand and long term debt. 2015 will see new GPUs, an APU refresh, and the release of the new Carrizo parts. 2016 looks to be the make or break year with Zen and K12.
Edit 2015-04-28: Thanks to SH STON we have a new slide that has been leaked from the same deck as this one. This has some interesting info in that AMD may be going away from exclusive cache designs. Exclusive was a good idea when cache was small and expensive, as data was not replicated through each level of cache (L1 was not replicated in L2 and L2 was not replicated in L3). Intel has been using inclusive cache since forever, where data is replicated and simpler to handle. Now it looks like AMD is moving towards inclusive. This is not necessarily a bad thing as the 512 KB of L2 can easily handle what looks to be 128 KB of L1 and the shared 8 MB of L3 cache can easily handle the 2 MB of L2 data. Here is the link to that slide.
The new slide in question.
Subject: Processors | February 24, 2015 - 11:18 PM | Jeremy Hellstrom
Tagged: Puma+, Puma, Kaveri, ISSCC 2015, ISSCC, GCN, Excavator, Carrizo-L, carrizo, APU, amd
While it is utterly inconceivable that Josh might have missed something in his look at Carrizo, that hasn't stopped certain Canadians from talking about Gila County, Arizona. AMD's upcoming processor launch is a little more interesting than just another Phenom II launch, especially for those worried about power consumption. With Adaptive Voltage and Frequency Scaling the new Excavator based chips will run very well at the sub-15W per core pair range which is perfect for POS, airplane entertainment and even in casinos. The GPU portion speaks to those usage scenarios though you can't expect an R9 295 at that wattage. Check out Hardware Canucks' coverage right here.
"AMD has been working hard on their mobile Carrizo architecture and they're now releasing some details about these Excavator architecture-equipped next generation APUs."
Here are some more Processor articles from around the web:
- AMD's new Carrizo: The x86 notebook processor that thinks it's a GPU @ The Register
- AMD Carrizo APU Details Revealed @ TechARP
- AMD FX-8320E Performance On Linux @ Phoronix
- Intel Broadwell HD Graphics 5500: Windows 8.1 vs. Linux @ Phoronix
- Preliminary Tests Of Intel Sandy Bridge & Ivy Bridge vs. Broadwell @ Phoronix
AMD Details Carrizo Further
Some months back AMD introduced us to their “Carrizo” product. Details were slim, but we learned that this would be another 28 nm part that has improved power efficiency over its predecessor. It would be based on the new “Excavator” core that will be the final implementation of the Bulldozer architecture. The graphics will be based on the latest iteration of the GCN architecture as well. Carrizo would be a true SOC in that it integrates the southbridge controller. The final piece of information that we received was that it would be interchangeable with the Carrizo-L SOC, which is a extremely low power APU based on the Puma+ cores.
A few months later we were invited by AMD to their CES meeting rooms to see early Carrizo samples in action. These products were running a variety of applications very smoothly, but we were not informed of speeds and actual power draw. All that we knew is that Carrizo was working and able to run pretty significant workloads like high quality 4K video playback. Details were yet again very scarce other than the expected timeline of release, the TDP ratings of these future parts, and how it was going to be a significant jump in energy efficiency over the previous Kaveri based APUs.
AMD is presenting more information on Carrizo at the ISSCC 2015 conference. This information dives a little deeper into how AMD has made the APU smaller, more power efficient, and faster overall than the previous 15 watt to 35 watt APUs based on Kaveri. AMD claims that they have a product that will increase power efficiency in a way not ever seen before for the company. This is particularly important considering that Carrizo is still a 28 nm product.
Subject: Processors | November 20, 2014 - 06:31 PM | Josh Walrath
Tagged: amd, APU, carrizo, Carrizo-L, Kaveri, Excavator, Steamroller, SoC, Intel, mobile
AMD has certainly gone about doing things in a slightly different manner than we are used to. Today they announced their two latest APUs which will begin shipping in the first half of 2015. These APUs are running at AMD and are being validated as we speak. AMD did not release many details on these products, but what we do know is pretty interesting.
Carrizo is based on the latest iteration of AMD’s CPU technology. Excavator is the codename for these latest CPU cores, and they promise to be smaller and more efficient than the previous Steamroller core which powers the latest Kaveri based APUs. Carrizo-L is the lower power variant which will be based on the Puma+ core. The current Beema APU is based on the Puma architecture.
Roadmaps show that the Carrizo APUs will be 28 nm products, presumably fabricated by GLOBALFOUNDRIES. Many were hoping that AMD would make the jump to 20 nm with this generation of products, but that does not seem to be the case. This is not surprising due to the limitations of that particular process when dealing with large designs that require a lot of current. AMD will likely be pushing for 16 nm FinFET for the generation of products after Carrizo.
The big Carrizo supposedly has a next generation GCN unit. My guess here is that it will use the same design as we saw with the R9 285. That particular product is a next generation unit that has improved efficiency. AMD did not release how many GCN cores will be present in Carizzo, but it will be very similar to what we see now with Kaveri. Carrizo-L will use the same GCN units as the previous generation Beema based products.
I believe AMD has spent a lot more time hand tuning Excavator instead of relying on a lot of automated place and route. This should allow them to retain much of the performance of the part, all the while cutting down on transistor count dramatically. Some rumors that I have seen point to each Excavator module being 40% smaller than Steamroller. I am not entirely sure they have achieved that type of improvement, but more hand layout does typically mean greater efficiency and less waste. The downside to hand layout is that it is extremely time and manpower intensive. Intel can afford this type of design while AMD has to rely more on automated place and route.
Carrizo will be the first HSA 1.0 compliant SOC. It is in fact an SOC as it integrates the southbridge functions that previously had been handled by external chips like the A88X that supports the current Kaveri desktop APUs. Carrizo and Carrizo-L will also share the same infrastructure. This means that motherboards that these APUs will be soldered onto are interchangeable. One motherboard from the partner OEMs will be able to address multiple markets that will see products range from 4 watts TDP up to 35 watts.
Finally, both APUs feature the security processor that allows them access to the ARM TrustZone technology. This is a very small ARM processor that handles the secure boot partition and handles the security requests. This puts AMD on par with Intel and their secure computing solution (vPro).
These products will be aimed only at the mobile market. So far AMD has not announced Carrizo for the desktop market, but when they do I would imagine that they will hit a max TDP of around 65 watts. AMD claims that Carrizo is one of the biggest jumps for them in terms of power efficiency. A lot of different pieces of technology have all come together with this product to make them more competitive with Intel and their process advantage. Time will tell if this is the case, but for now AMD is staying relevant and pushing their product releases so that they are more consistently ontime.