Subject: Processors | July 28, 2013 - 01:08 PM | Tim Verry
Tagged: Richland, overclocking, LN2, APU, amd, a10-6800k
A Finnish overclocker known as “The Stilt” recently pushed an AMD Richland APU to 8.2GHz using liquid nitrogen. In doing so, The Stilt broke the world record for APU overclocking, besting his previous overclock attempt.
Specifically, the chip was a retail version of the AMD A10-6800K “Richland” APU. It was overclocked to 8203.01 MHz with a 130.21 MHz base clock and 63x multiplier. Even more impressive is that The Stilt managed the overclock with less voltage -- 1.968 volts -- than his earlier (and lower) overclock. For comparison, the earlier overclock brought the A10-6800K to 8000.48 MHz using 2.008 volts.
The system used to overclock the APU included an ASUS F2A85-V Pro motherboard, 8GB of AMD DDR3 Performance memory, and a Radeon HD 7750 graphics card. The overclocker used liquid nitrogen to cool the APU while the GPU was left at stock settings and with its default air cooler. The RAM was overclocked to 2083.6 MHz with 10-11-10-27 timings.
In all, it is an impressive overclock considering all four CPU cores were left enabled! More details along with validation of the overclock can be found over at HWBot.
Also read: AMD A10-6800K and A10-6700 Review: Richland Finally Lands @ PC Perspective
Subject: General Tech, Processors, Mobile | July 23, 2013 - 06:58 PM | Scott Michaud
Tagged: SDP, haswell
Intel has just lowered their lowered thermal expectations for Haswell if, of course, you use SDP as your metric. Scenario Design Point (SDP), as opposed to Thermal Design Power (TDP), describes how much heat dissipation is required for the product at some, usually underclocked, performance target. SDP does not need to affect burst performance, however, as the chip can still up-clock given some extra headroom.
While we don't know OEM partners, Intel could be green, with HP Envy?
It describes long-term cooling requirements, not instantaneous power draws.
In terms of SDP, Intel expected to ship 6W products based on their 4th generation core architecture. Today, Intel announced a limited stock will dip below that target, capable of just 4.5W in waste heat. OEMs who purchase from this limited binning will be able to include Haswell in even thinner active or passively cooled designs.
Intel has not described exact specifications, partners, or shipping dates.
Subject: General Tech, Graphics Cards, Processors, Mobile | July 23, 2013 - 04:01 AM | Scott Michaud
Tagged: Samsung, mali, exynos
Exynos, the line of System on a Chip (SoC) products from Samsung, were notably absent of ARM Mali GPUs. This, apparently, struck concern over how viable Mali will continue to be and whether ARM will continue to lose designs to competitors such as Imagination Technologies.
Then Samsung announced, Monday evening for us North Americans, the upcoming Exynos 5 Octa Processor will embed six ARM Mali-T628 GPU cores. The T628 GPU cores are capable of OpenCL 1.1 and OpenGL ES 3.0 standards which should allow applications to offload heavy batches of tasks, such as computational photography processing, with high efficiency and performance.
The Exynos 5 Octa contains four ARM Cortex-A15 cores at 1.8GHz, supported by four additional Cortex-A7 cores clocked at 1.3GHz. These processors are currently being sampled and should be produced in August.
Subject: Processors | July 19, 2013 - 04:13 PM | Jeremy Hellstrom
Tagged: vishera, TWKR, piledriver, FX-9590, Centurion, amd
As we have been discussing the 220W TDP 5GHz AMD FX-9590 recently it seems a good idea to show what level of performance you can expect from this chip. Hardware Canucks had a chance to benchmark the performance of this chip using both synthetic benchmarks and some gaming tests. When they tried to overclock the chip they ran into difficulties with not only heat, as you would expect but they also ran into an issue with power, they maxed out the amount that the board could provide. Single thread performance is not up to par with SandyBridge-E but in properly designed multi-threaded programs the performance is impressive, though perhaps not for an $800+ chip.
"With the FX-9590, AMD has taken their Piledriver architecture and pushed it to the absolute limit. By running at an astounding 5GHz, this new CPU is the fastest in the FX-series stable."
Here are some more Processor articles from around the web:
- AMD FX9590 @ Kitguru
- AMD A10-6800 and A10-6700 'Richland' APU @ eTeknix
- Desktop CPU Comparison Guide @ TechARP
- 48 desktop and 66 mobile processors tested in Cinebench 11.5 @ Hardware.info
- Intel Core i7-4770K Quad-Core Processor Review @ Techgage
Subject: General Tech, Processors | July 18, 2013 - 07:41 PM | Scott Michaud
Tagged: xeon, Ivy Bridge-E, Intel
Tom's Hardware acquired, from... somewhere, an early engineering sample of the upcoming Core i7-4960X. Intel was allegedly not involved with this preview and were thus, I would expect, not the supplier for their review unit. While the introductory disclaimer alluded to some tensions between Intel and themselves, for us: we finally have a general ballpark of Ivy Bridge-E's performance. Sure, tweaks could be made before the end of this year, but this might be all we have to go on until then.
Both images, credit, Tom's Hardware.
When browsing through the benchmarks, I noticed three key points:
- Single-threaded: slightly behind mainstream Haswell, similar to Sandy Bridge-E (SBE).
eight cores(Update 1: This was a 6-core part) are better than SBE, but marginal given the wait.
- Power efficiency: Ivy Bridge-E handily wins, about 30% more performance per watt.
These results will likely be disappointing to enthusiasts who seek the highest performance, especially in single-threaded applications. Data centers, on the other hand, will likely be eager for Xeon variants of this architecture. The higher-tier Xeon E5 processors are still based on Socket 2011 Sandy Bridge-E including, for instance, those powering the highest performance Cluster Compute instances at Amazon Web Services.
But, for those who actually are salivating for the fastest at all costs, the wait for Ivy Bridge-E might as well be postponed until Haswell-E reaches us, allegedly, just a year later. That architecture should provide significant increases in performance, single and multi-threaded, and is rumored to arrive the following year. I may have just salted the wounds of those who purchased an X79 motherboard, awaiting Ivy Bridge-E, but it might just be the way to go for those who did not pre-invest in Ivy Bridge-E's promise.
Again, of course, under the assumption that these benchmarks are still valid upon release. While a complete product re-bin is unlikely, we still do not know what clock rate the final silicon will be capable of supporting, officially or unofficially.
Keep calm, and carry a Haswell?
Subject: Processors | July 12, 2013 - 10:06 PM | Tim Verry
Tagged: Intel, BGA, Bay Trail, haswell, roadmap
There has been a ton of BGA processor stories over the past year, with the most recent being that Intel will not be releasing the BGA-only 14nm Broadwell processors next year. It is not all bad news for BGA fans though, because Intel is reportedly introducing new BGA versions of Haswell-based chips late this year and in the first half of 2014.
According to a leaked road-map, Intel will release three new Bay Trail based BGA chips under the Pentium and Celeron brands by Q4 2013. Additionally, next year the company will launch three high performance BGA-only Haswell-based processors.
On the low end, Intel will launch three new Bay Trail-D based processors. The J1750 and J1850 will be Celerons while the J2850 will have Pentium branding. The specifications are available in the chart below.
|Base Clockspeed||Cores / Threads||Cache||GPU||GPU Clockspeed|
|Pentium J2850||2.4 GHz||4 / 4||2 MB||Intel HD||688 / 792 MHz|
|Celeron J1850||2.0 GHz||4 / 4||2 MB||Intel HD||688 / 792 MHz|
|Celeron J1750||2.4 GHz||2 / 2||2 MB||Intel HD||688 / 750 MHz|
For the enthusiast crowd that favors small systems (like Intel’s NUC), the company is releasing three new Haswell-based BGA processors under its Core i5 and Core i7 branding. Specifications for these high end chips are located in the chart below. Interestingly, these Haswell chips in a BGA package come with Intel's much faster Iris 5200 processor graphics. A high end desktop CPU SKU with Intel's GT3e (GT3 GPU with embedded memory) still eludes enthusiasts, however despite the BGA packaging. Note that the BGA Core processors are not coming until at least next year, according to the roadmap (which does note that dates are subject to change).
|Base Clockspeed||Cores / Threads||Cache||GPU||GPU Clockspeed|
|Core i7 4770R||3.2 GHz||4 / 8||6 MB||Intel Iris 5200||1300 MHz|
|Core i5 4670R||3.0 GHz||4 / 4||4 MB||Intel Iris 5200||1300 MHz|
|Core i5 4570R||2.7 GHz||4 / 4||4 MB||Intel Iris 5200||1150 MHz|
There has definitely been resistance against Intel’s BGA lineups by the enthusiast crowd, for fear that customization and DIY abilities would be hampered and that BGA would take over and displace LGA (socketed CPUs). In this particular case though, I think the new BGA processors are a good thing and so long as there continues to be LGA options for the DIY and enthusiast crowd, I look forward to seeing what platforms these new BGA chips are used in and what motherboard manufacturers offer with them (if they are even offered at retail at all, and not just to OEMs).
I think a BGA version of a desktop CPU with Intel's fastest GT3e processor graphics would actually be welcome since it appears that an LGA version is out of the question, and would be one way to sway desktop users over to Intel's BGA strategy and have them be open to similar options in future chips, such as Broadwell in 2015.
Battle of the IGPs
Our long journey with Frame Rating, a new capture-based analysis tool to measure graphics performance of PCs and GPUs, began almost two years ago as a way to properly evaluate the real-world experiences for gamers. What started as a project attempting to learn about multi-GPU complications has really become a new standard in graphics evaluation and I truly believe it will play a crucial role going forward in GPU and game testing.
Today we use these Frame Rating methods and tools, which are elaborately detailed in our Frame Rating Dissected article, and apply them to a completely new market: notebooks. Even though Frame Rating was meant for high performance discrete desktop GPUs, the theory and science behind the entire process is completely applicable to notebook graphics and even on the integrated graphics solutions on Haswell processors and Richland APUs. It also is able to measure performance of discrete/integrated graphics combos from NVIDIA and AMD in a unique way that has already found some interesting results.
Battle of the IGPs
Even though neither side wants us to call it this, we are testing integrated graphics today. With the release of Intel’s Haswell processor (the Core i7/i5/i3 4000) the company has upgraded the graphics noticeably on several of their mobile and desktop products. In my first review of the Core i7-4770K, a desktop LGA1150 part, the integrated graphics now known as the HD 4600 were only slightly faster than the graphics of the previous generation Ivy Bridge and Sandy Bridge. Even though we had all the technical details of the HD 5000 and Iris / Iris Pro graphics options, no desktop parts actually utilize them so we had to wait for some more hardware to show up.
When Apple held a press conference and announced new MacBook Air machines that used Intel’s Haswell architecture, I knew I could count on Ken to go and pick one up for himself. Of course, before I let him start using it for his own purposes, I made him sit through a few agonizing days of benchmarking and testing in both Windows and Mac OS X environments. Ken has already posted a review of the MacBook Air 11-in model ‘from a Windows perspective’ and in that we teased that we had done quite a bit more evaluation of the graphics performance to be shown later. Now is later.
So the first combatant in our integrated graphics showdown with Frame Rating is the 11-in MacBook Air. A small, but powerful Ultrabook that sports more than 11 hours of battery life (in OS X at least) but also includes the new HD 5000 integrated graphics options. Along with that battery life though is the GT3 variation of the new Intel processor graphics that doubles the number of compute units as compared to the GT2. The GT2 is the architecture behind the HD 4600 graphics that sits with nearly all of the desktop processors, and many of the notebook versions, so I am very curious how this comparison is going to stand.
Subject: General Tech, Processors, Mobile | July 5, 2013 - 03:50 PM | Scott Michaud
Tagged: qualcomm, Intel, Bay Trail-T, Bay Trail
Bay Trail is still seasons away but engineering samples are, and this should be no surprise, already in use at least for research and development purposes. Someone, somewhere down the line, decided to run a benchmark which was posted online. AnTuTu, the benchmark utilized, measures a spread of factors including memory, integer performance, floating point performance, 3D performance, and so forth. Unfortunately it does also include some non-CPU/GPU factors in its score, albeit barely, so best take it with a grain of salt.
Image Credit: The Droid Guy
The Silvermont-based chip, clocked at an... actually quite modest 1101 MHz, received a synthetic score of 43416. To put that in comparison: arguably the fastest ARM processor on the market, the Qualcomm's Snapdragon 800, tends to find itself with a score around the 30,000-32,000 range which is about 27-31% slower than Intel. The very popular albeit soon deprecated Nexus 7, powered by the Tegra 3, scores 12726.
Personally, I am getting a little flashback of the Intel vs. AMD battle about 8 years ago. We seem to be close to a Conroe (Core 2 Duo) vs. AMD Athlon 64 FX point between Intel and ARM. Intel eclipsed the AMD Athlon 64
FX-57 (update: I meant FX-62) and kept throwing more money at research than AMD could possibly afford. Unless ARM can severely undercut Bay Trail, Intel could follow past trends and simply bury their competitors with tens of billions in capital investment until their products are so far ahead that consumers default to Intel products.
If history repeats itself, this leaves Qualcomm and others in a difficult position. The solution seems to be either to tread water in a price point that Intel ignores or to collectively dump money into ARM and run the "out-research Intel" treadmill. Remember, this is a company who will dump twice AMD's revenue into their Research and Development year-over-year to keep ahead. Unlike Intel's GPU efforts, which did not seem like a problem that cash could solve alone, they know how to make processors.
I would not make business decisions under the assumption x86 will keep Intel hobbled indefinitely.
Subject: General Tech, Processors | July 3, 2013 - 03:12 AM | Scott Michaud
Tagged: Richland, APU, amd
Accidents happen. AMD has been rolling out their Richland APUs for the last month and partners have been keeping up with supporting products. While common, the problem with rolling releases is the potential confusion over what has and what has not been released. Unfortunately for MSI, their support chart for FM2 CPUs includes a couple of products which are news to us.
AMD will be able to hit the 45W TDP with the, apparently, upcoming A8-6500T and A10-6700T APUs. Tom's Hardware seemed to have slightly different information, their chart does not exactly jive with the one posted by MSI; for instance, they claimed the T suffix implied a low power variant when MSI's chart confirmed a 45W TDP... fairly loud and clear. As such, our table will be my best attempt at combining both charts along with a bit more leaked GPU information from TechPowerUP.
|Base Clock||2.1 GHz||2.5 GHz|
|L2 Cache||4 MB||4 MB|
|L3 Cache||0 MB (N/A)||0 MB (N/A)|
Radeon HD 8550D
(Not HD 8650D)
|Radeon HD 8650D|
|GPU Clock||720 MHz||720 MHz|
|GPU Boost Clock||844 MHz (???)||844 MHz (???)|
|GPU Shader Count||256||384|
It is impossible to know expected price, release window, or even whether the product still exists. For that, we will need to wait for an official unveiling... or at least another unofficial one.
Subject: General Tech, Processors, Systems | June 26, 2013 - 10:27 PM | Scott Michaud
Tagged: supercomputing, supercomputer, titan, Xeon Phi
The National Supercomputer Center in Guangzho, China, will host the the world's fastest supercomputer by the end of the year. The Tianhe-2, English: "Milky Way-2", is capable of nearly double the floating-point performance of Titan albeit with slightly less performance per watt. The Tianhe-2 was developed by China's National University of Defense Technology.
Photo Credit: Top500.org
Comparing new fastest computer with the former, China's Milky Way-2 is able to achieve 33.8627 PetaFLOPs of calculations from 17.808 MW of electricity. The Titan, on the other hand, is able to crunch 17.590 PetaFLOPs with a draw of just 8.209 MW. As such, the new Milky Way-2 uses 12.7% more power per FLOP than Titan.
Titan is famously based on the Kepler GPU architecture from NVIDIA, coupled with several 16-core AMD Opteron server processors clocked at 2.2 GHz. This concept of using accelerated hardware carried over into the design of Tianhe-2, which is based around Intel's Xeon Phi coprocessor. If you include the simplified co-processor cores of the Xeon Phi, the new champion is the sum of 3.12 million x86 cores and 1024 terabytes of memory.
... but will it run Crysis?
... if someone gets around to emulating DirectX in software, it very well could.