Subject: General Tech, Processors | January 11, 2012 - 06:21 PM | Scott Michaud
Tagged: windows, processor, microsoft, cpu, bulldozer, amd
Let us take a little break from the CES news with a load of bull -- a download of Bulldozer. If you have an eerie sense of being in this situation before then you may in fact have a bad memory as it did in fact happen and it was only about a month ago. Microsoft released an update in mid-December to optimize their operating systems for AMD Bulldozer technology; that patch disappeared without any listed reason. As of today, we have access to both the patch as well as most of the reason for the delay in the first place.
You know: part of me wants to see a Bulldozer go 100MPH, and another part of me fears greatly.
The first order of business is to explain to those who have an AMD FX series, Opteron 4200 series, and/or an Opteron 6200 series processor how to increase their potential performance: KB 2646060 and KB 2645594 each contain a patch which will optimize Windows to the Bulldozer architecture for most users when both are applied.
It turns out that Microsoft pulled the Bulldozer update last month when discussions with AMD revealed that the patch would not provide the promised performance increases for most users. The problem specifically centers on the Core Parking feature within Windows 7 and Windows Server 2008 R2: after the hotfix in December was applied, Core Parking would still interfere with Bulldozer’s design by attempting to save power and sleep cores that were unused without understanding that Bulldozer cores are not typical cores. With Core Parking disabled for Bulldozer-based CPUs either through this hotfix or by changing your performance profiles to “High Performance” from the often default “Balanced” you would allow Bulldozer to run as it actually desires to run. According to how these bulletins are worded, should you have been on “High Performance” profile back in December before the hotfix was pulled you would have experienced what should only have been available starting today.
These performance increases are not for every application, however. AMD has stated that applications which are more sparsely multithreaded would benefit most from the update.
Workloads that are moderately threaded have the potential for uplift. This could include virtualization, database, or transactional environments that are “bursty” – a mixture of light and heavy transactions, or legacy applications that are by nature not very threaded. The more heavily threaded the application, the less the likely the uplift.
My intuition knowing this as well as the Core Parking issue is that once Windows finally wakes the Bulldozer core, your experience is maximal with the December patch; applications which only temporarily become multithreaded either do not wake the proper portions of the processor or wake the processor in time to be of maximum benefit.
It appears as if the removal of the hotfix last month was simply because AMD believed that while the patch was effective, it would not be correctly applied to the vast majority of customers without a second hotfix and thus give the appearance of little to no real benefits.
Subject: General Tech | January 4, 2012 - 01:20 PM | Jeremy Hellstrom
Tagged: Intel, cpu, core i3, core i5, core i7
As reported yesterday, there are quite a few new server chips arriving in 2012 but today the news is not so happy for bargain shoppers who were not planning on picking up an Ivy Bridge based system. Intel will no longer be shipping out Core i5-661 & 660, Core i3-530, Pentium E5700 or Celeron E3500s and will stop producing them by the summer. On the Sandybridge side six Core i7 models are being cut as are six Core i5 models. As well the Pentium G960, Pentium E6600/E550 and Celeron E3300 will see their line end in the summer of 2012. While this does make space for the new desktop processors Intel is releasing soon it means anyone planning on building a lower cost system with these parts should consider doing so soon. DigiTimes lists all the models slated for retirement here.
"To pave the way for the upcoming launch of 22nm Ivy Bridge processors in April 2012, Intel has notified its hardware partners of its schedule for stopping the supply or production of over 25 existing desktop CPU models, according to industry sources in Taiwan."
Here is some more Tech News from around the web:
- Microsoft celebrates the death of IE6 @ The Register
- Intel thinks Cedar Trail is a dog: reading between bullet points @ SemiAccurate
- FreeDOS 1.1 Released @ Slashdot
- Canon Pixma MG6220 Review @ TechReviewSource
Subject: General Tech | January 3, 2012 - 01:58 PM | Jeremy Hellstrom
Tagged: Intel, server, cpu, Romley, Ivy Bridge-H2, xeon e3, xeon e5
The server room will be getting an update over the next year thanks to Intel releasing numerous CPU models based on different architectures. First up comes Romley with a total of seven 8-core Xeons, a half dozen 6-core Xeons including both the E5-1660 and 1650 as well as the E5-2640 and relatives, five 4-core Xeons and a single dual core CPU. That will take us until close to summer. By then Intel will be working on eleven different Ivy Bridge-H2 series CPUs including the Xeon E3-1290v2 as well as seven more higher end processors including Xeon E5-2470, which will take us towards the end of 2012.
In addition to the regular lineup, DigiTimes also lists four low power Xeons which will arrive in 2012 including the 8-core Xeon E5-2650L.
"Intel is set to launch 40 new processors including those for its upcoming Romley platform, in the first half of 2012 with the company to release 20 models each quarter, according to sources from server players."
Here is some more Tech News from around the web:
- UMC develops 0.11 micron aluminum process @ SemiAccurate
- Neural networks control a toy car @ Hack a Day
- Asustek to reduce motherboard production volume for 1Q12 @ DigiTimes
- Netgear Powerline AV 500 Adapter Kit Review @ TechReviewSource
- SteelSeries DESMO Gaming Eyewear Review @ Techgage
Subject: Processors | December 16, 2011 - 12:41 PM | Scott Michaud
Tagged: amd, bulldozer, cpu, processor, windows, microsoft
Intel was far from demolished when AMD's Bulldozer came to town. Users still clung to hope that Microsoft's Windows 7 was not optimized to take advantage of Bulldozer's multi-core environment. Vindication came sweetly with a knowledge base article and a patch from Microsoft confirming the issue and offering a solution. While they can still feel comfortable knowing they were right, the solution has been pulled from Microsoft's website without any announced reason. Who should we feel sorry for: those who didn't download it yet, or those who did?
To be entirely fair, Microsoft's knowledge base article was quite clear in its instruction to users regarding this hotfix.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
Still, AMD users have another reason to be upset as if they needed one. The hotfix will come, and will come in completely stable form; it just looks like today is not that day. If you already received this update and have experienced technical difficulties, the comment form awaits.
Subject: Processors | December 16, 2011 - 01:56 AM | Tim Verry
Tagged: amd, bulldozer, cpu, processor, windows, microsoft
When AMD’s Bulldozer processors arrived, they were unable to best Intel’s fastest at most tasks. A number of users held out hope for Bulldozer; however, as it was discovered that Microsoft’s Windows 7 operating system was not optimized to take advantage of the multi-threaded execution scheduling engine. While MS has implemented this optimization in the Windows 8 kernel, the current stable release has been without a fix until recently. The fix in question is available for Windows 7 and Windows Server 2008 R2 and can be downloaded here. It should be noted that service pack 1 is a pre-requisite to this hot-fix.
Conservatively, previous indications suggested such a fix would add a 5 % to 10 % performance boost in multi-threaded applications. That number is based on the estimates from around the web from people comparing benchmarks between Windows 7 and Windows 8 Developer Preview. If you are running a Bulldozer processor in your machine, be sure to apply this update and let us know how performance improves.
Subject: Processors | October 12, 2011 - 12:44 AM | Jeremy Hellstrom
Tagged: fx-8150, FX, cpu, bulldozer, amd, 990fx
You've been waiting through years of rumour and innuendo but the day has finally arrive, AMD's brand new Bulldozer architecture is here. It is like nothing we've seen before in any chip based off of the venerable Athlon line, which has served dutifully for over a decade. Bulldozer takes AMD's vision of a dual core processor not as two cores sewn together, but more as Siamese twins which share vital resources and are so closely conjoined that you cannot truly say where one ends and the other begins. The Bulldozer core is exactly that, while only four Bulldozer cores exist they can handle eight integer execution units, and four shared 2 x 128 bit floating point/SIMD which is interpreted by your OS as 8 cores.
Implementing a new technology is not without its drawbacks. The Athlon/Phenom architecture has been perfected by AMD thanks to its long life, while the Bulldozer is brand new and they've already started polishing it into Piledriver which will we see in the not too distant future (especially compared to the wait for Bulldozer). That immaturity is shown in Ryan's review where he compares it clock for clock to a Phenom II. It gets worse when compared against SandyBridge as the Bulldozer can at most occaisonally equal the performance of an i7-2600K. The only saving grace is price when you look at heavily multi-threaded applications and there are not many out there.
However one benchmark cannot tell the whole story, which is why [H]ard|OCP released two reviews on Bulldozer which focus on different aspects of the chips performance. Start off with their look at the performance which will give you an idea of how the chip performs under normal circumstances with its power saving features enabled and overclocked with those features disabled. Then they head onto what most people are interested in, the gaming benchmarks. Theoretical and productivity software benchmarks are one thing but we've all got to have fun sometimes and for those moments the new FX chips don't look too bad at all ... unless you are a Civ V fan.
"Computer hardware enthusiasts have literally waited for years for AMD's Bulldozer architecture to come to market and we finally see this today in its desktop form, code named Zambezi, brand named AMD FX. In this article we share with you our analysis of Bulldozer's performance in synthetic benchmarks and desktop applications."
Here are some more Processor articles from around the web:
- AMD FX-8150 Processor Review - Bulldozer Arrives @ Legit Review
- AMD FX-8150 Bulldozer CPU Review @ Neoseeker
- AMD FX-8150 Black Edition Processor Launch Review vs Intel Core i7-2600K @ HardwareHeave
- AMD FX-8150, FX-8120, FX-6100 and FX-4170 @ Legion Hardware
- AMD FX-8150 - Bulldozer @ Overclockers.com
- AMD FX-8150 CPU Review: Can Bulldozer Raze The Playing Field? @ Hi Tech Legion
- AMD Bulldozer FX-8150 Processor Review @ Hardware Canucks
- AMD FX-8150, FX Series Reviewed - Bulldozer makes debut @ Techspot
- AMD FX 8150 Black Edition @ kitguru
- AMD's FX-8150 "Zambezi" CPU @ LostCircuits
Bulldozer. Since its initial unveiling and placement on the roadmap many have called the Bulldozer architecture the savior of AMD, the processor that would finally turn the tide back against Intel and its dominance in the performance desktop market. After quite literally YEARS of waiting we have finally gotten our hands on the Bulldozer processors, now called the AMD FX series of CPUs, and can report on our performance and benchmarking of the platform.
With all of the leaks surrounding the FX processor launch you might be surprised by quite a bit of our findings - both on the positive and the negative side of things. With all of the news in the past weeks about Bulldozer, now we can finally give you the REAL information.
- Bulldozer First Release and the State of 32nm AMD Parts
- AMD Bulldozer Processor hits 8.429 GHz - New World Record!
- AMD Bulldozer FX Processor Benchmarks Leaked
Before we dive right into the performance part of our story I think it is important to revisit the Bulldozer architecture and describe what makes it different than the Phenom II architecutre as well as Intel's Sandy Bridge design. Josh wrote up a great look at the architecture earlier in the year with information that is still 100% pertinent and we recount much of that writing here. If you are comfortable with the architeture design points, then feel free to skip ahead to the sections you are more interested in - but I recommend highly you give the data below a look first.
The below text was taken from Bulldozer at ISSCC 2011 - The Future of AMD Processors.
Bulldozer Architecture Revisited
Bulldozer brings very little from the previous generation of CPUs, except perhaps the experience of the engineers working on these designs. Since the original Athlon, the basic floor plan of the CPU architecture AMD has used is relatively unchanged. Certainly there were significant changes throughout the years to keep up in performance, but the 10,000 foot view of the actual decode, integer, and floating point units were very similar throughout the years. TLB’s increasing in size, more instructions in flight, etc. were all tweaked and improved upon. Aspects such as larger L2 caches, integrated memory controllers, and the addition of a shared L3 cache have all brought improvements to the architecture. But the overall data flow is very similar to that of the original Athlon introduced 14 years ago.
As covered in our previous article about Bulldozer, it is a modular design which will come in several flavors depending on the market it is addressing. The basic building block of the Bulldozer core is a 213 million transistor unit which features 2 MB of L2 cache. This block contains the fetch and decode unit, two integer execution units, a shared 2 x 128 bit floating point/SIMD unit, L1 data and instruction caches, and a large shared L2 unit. All of this is manufactured on GLOBALFOUNDRIES’ 32nm, 11 metal layer SOI process. This entire unit, plus 2 MB of L2 cache, is contained in approximately 30.9 mm squared of die space.
Subject: Processors | October 7, 2011 - 06:44 AM | Tim Verry
Tagged: zambezi, gpu, cpu, bulldozer, amd, 9 core
It is less than a week before Bulldozer’s official launch (October 12th), and it would seem that a Ukrainian retailer was not able to wait as it leaked AMD’s FX-8120 Bulldozer processor in a price list. The 32nm chip is stated to have eight cores running at 3.1 GHz, 8 MB L2 cache, and 8MB of L3 cache. Further, the core stepping is said to be B2 and is comprised of Zambezi processing cores. The FX-8120 has a 95W TDP and is compatible with motherboards from the AM3+ series and newer.
The processor is listed as model number FD8120FRGUBOX, and carries a price of $221 USD or 1,791 UAH. The website is currently listing October 10th; however, it is not clear if customers will be able to purchase the processor that day by the pricing page alone. If the leaked benchmarks turn out to be close to the truth, would you consider the FX-8120 a good value?
Subject: Cases and Cooling | October 7, 2011 - 05:49 AM | Tim Verry
Tagged: cpu, Intel, core i7, 2700K, cooling
An aspiring overclocker and Coolaler forum go-er "u48802109" got his/her hands on an engineering sample and set out to see just how far he could push the upcoming Intel Core i7 2700K processor using air cooling. In an exciting result, the overclocker was able to achieve a stable 5 GHz overclock on the 2700K with a 100 MHz bus speed and 50x multiplier. Even more amazing are the voltage and temperature results (keeping in mind that we don't know the particular HSF being used) of the overclock. Specifically, they were able to hit 5 GHz with 1.384 V and hit a maximum temperature of 65 C.
A zoomed in look at the CPU-Z readout.
While air cooling may not be able to support going to much higher frequencies, water cooling could certainly open up even more headroom in the chip. Also, keeping in mind that these are engineering samples, it will be interesting to see where the Core i7 2700K falls once it starts rolling out to consumers. If these results hold out, it does seem like it may just be worth it to pay a few extra bucks and eschew the 2600K for new builds. What are your thoughts, are these results encouraging to you? You can see the full overclocking results here.
Subject: Processors | October 3, 2011 - 12:29 AM | Tim Verry
Tagged: sandy bridge, Intel, i7 2600k, FX 8150, FX, cpu, bulldozer, amd
Intel has held the performance lead for several processor generations now, and while AMD is still technically in the game for home theater PC and budget builds, many enthusiasts have moved to Intel for gaming and high performance computers. Many of those people have also held hope that the chip manufacturer would eventually come back strong and maintain some level of competition in the industry. As we move closer to AMD's Bulldozer launch (which seems to have been confirmed for October 12th), enthusiasts and reviewers alike are clamoring to answer a long awaited question: "will Bulldozer give Intel a run for its money?"
According to website Donanim Haber, enthusiasts’ high hopes may finally be realized. The site has posted several benchmarks results that indicate Bulldozer is not only cheaper than Sandy Bridge, but performs on par with Intel’s top end Sandy Bridge chips. In many tests, the AMD FX 8150 CPU’s eight core performance matches the multi-threaded (8 threads, 4 cores) performance of Intel’s high end Core i7 2600k processor.
In the benchmarks that the site performed, the AMD FX 8150 was tested against the Intel Core i7 980X for 1080p gaming and the Core i7 2500k and 2600k for multi-threaded performance. In the graph shown above, the AMD Bulldozer CPU was roughly on par with the i7 980X, trading wins in some games and providing a similar level of performance in others. The AMD processor won in the Metro 2033 and Lost Planet benchmarks, but was slightly slower in Civilization V and F1 2010. In AVP and Batman (among others), the two competing processors saw equal results.
They also ran several benchmarks using highly multi-threaded programs to take advantage of the many-core designs of the AMD and Intel processors, including WinRar 4, Handbrake, 7zip, and wPrime 32M. The eight core AMD FX 8150 Bulldozer processor was tested against both an Intel Core i5 2500k and a Core i7 2600k. The AMD CPU came out ahead in 7zip, wPrime 32M, and Bibble 5.0. It was slower than the Core i7 2600k in the WinRar 4 tests and slower than both the 2500k and 2600k in the ABBYY OCR10 benchmarks. In the other tests, the AMD processor kept pace with or was only slightly behind the top end Intel 2600k CPU.
From the leaked benchmarks (which you can read here), AMD’s new Bulldozer CPUs have made an admirable showing. Should these benchmarks hold true, Intel will have some serious competition on its hands, something that the company has not had to deal with in a long time. Whether Bulldozer will result in price cuts or ramped up production on the Intel side remains to be seen; however, the results are not going to be easy for Intel to ignore.
Stay tuned to PC Perspective for more Bulldozer news in the coming weeks.
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