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AMD 'Bulldozer' FX CPU Reviews Arrive

I.M.O.G. writes "Today AMD lifted the embargo on their most recent desktop AMD FX architecture, code named Bulldozer, whose CPU frequency record Slashdot recently covered. The fruition of 6 years of AMD R&D, this new chip architecture is the most significant news out of AMD since the Phenom II made its debut. The chips are available now in all major retail outlets, and top tier hardware sites have published the first Bulldozer reviews already." Here are reviews from a few different sites — pick your favorite: Tom's Hardware, PC Perspective, Hot Hardware, [H]ardOCP, or TechSpot. They don't agree on everything, but the consensus seems to be that the new chips aren't blowing anyone's socks off, and that they struggle to compete with Intel's comparable offerings. The architecture shows promise, but performance gains will take time to materialize, making it difficult to leapfrog Intel to any significant degree.

27 of 271 comments (clear)

  1. I skimmed a few... by fuzzyfuzzyfungus · · Score: 2

    And the comparisons seemed pretty much benchmarked performance based, with a side of price comparison. Fair enough, as these are pitched as 'enthusiast' parts; but left me wondering about one thing:

    Of late, intel's somewhat confusing set of model numbers has been distinguished, in addition to differences in speed, by various features being lasered off of certain parts, but not others, mostly virtualization-related stuff. AMD generally left those on at all times and distinguished primarily by speed.

    Does anybody have an idea how the price/performance comparisons change(if in fact they do) from the pure-benchmark ones given in TFAs, if the buyer requires that all the relevant virtualization features be enabled?

    1. Re:I skimmed a few... by pankkake · · Score: 4, Informative

      All AMD CPUs allow ECC for instance, so if you require ECC memory it's much cheaper to go with AMD.

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    2. Re:I skimmed a few... by fuzzyfuzzyfungus · · Score: 3, Interesting

      This is partially the motherboard makers' fault, since they can generally scuttle such features in the BIOS even if enabled on die(laptop makers, in particular, seem to revel in doing this); but Intel's "VT-x", for various values of x, is a pit of confusion, and some of those VT-x's make a significant difference for VM workloads.

      It's of interest to me because my next build/config to order is likely to be primarily for VM hosting, with routine desktop/workstation tasks taken care of by the fact that modern CPUs are fast as hell. Unfortunately, a lot of the enthusiast benchmarks generally focus on running Medal Of Warfare fast and cheap, and the virtualization benchmarks generally start from the assumption that you are looking to buy a palletload of 1Us...

    3. Re:I skimmed a few... by Kjella · · Score: 2

      The i7 2600K has all of the bells and whistles enabled. Except maybe ECC memory...

      No, it doesn't have VT-d or TXT enabled, the 2600 - not the K - does though. It less for a fraction less, has slightly worse integrated graphics and is multiplier locked, it's basically the business version of the 2600K. And like you say, if you want ECC you must get Xeons.

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    4. Re:I skimmed a few... by mollymoo · · Score: 3, Interesting

      Plenty of people do work where a silent, undetected error could cost more than the extra couple of hundred bucks it costs to go ECC. Google's study found over 8% of DIMMs had memory errors each year. A hefty workstation with more RAM than a Google server (which are individually quite modest) could expect a proportionally higher rate of errors than a Google server.

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    5. Re:I skimmed a few... by Vectormatic · · Score: 2

      i've only seen the 8150, no other chips out there yet.

      My main comparison point is the x6, since i'm looking at upgrading from a x4 940, so far it looks like the 8150 has serious trouble beating the x6 1100T in anything but the heaviest threading and a few x264 encoding benches. So it looks like i'll pick a 1090T for 100 bucks less then the 8150.

      Bulldozer might be interesting from an architectural standpoint, but to me it looks like they gimped the execution hardware and tried to make up for that with rather massive L2 caches and subsequently Global foundries fumbled the ball on the production, meaning Bulldozer isnt hitting the clock speeds needed for being competitive.

      I'm sort of hoping for AMDs sakes that this will turn out like the original phenom, it was inovative and all, but failed to hit clockspeeds and ran hot, then AMD did a major refactor of that chip and shrunk it to 45nm and suddenly Phenom II turned out quite well.

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    6. Re:I skimmed a few... by hairyfeet · · Score: 4, Interesting

      Well that would depend on this....is your budget unlimited? Because frankly the bang for the buck has been in the AMD camp for quite some time IMHO, with Intel doing too much crippling on its lower end and when you add in the price of their boards (plus a decent GPU as Intel GPUs are shit) it just makes it that much sweeter. If you want all the features it is AMD or be ready to empty that wallet Fuzzy.

      That said although I won't be having ANY Intel chips in my shop (because I don't reward criminal behavior and the bribery and compiler rigging frankly made MSFT look like choirboys by comparison and I thought MSFT should have been broken up) I would wait probably 6 months to a year before switching to Bulldozer on the desktop. The bang for the buck on the AM3 chips is just too good right now. I have been seeing Thuban 6 cores on sale for less than $130 and have been building nice quad cores for my customers and still making a decent profit for $450. It always takes AMD awhile to ramp up the chips and right now the early adopters will keep the price higher than Thuban and Deneb, which are both nice chips. You can get a nice Deneb for less than $500 for the whole smash, upgrade to Thuban later, and by the time you decide you need more cores they'll have the 16 core FX chips out. Right now the extra premium for two cores just isn't worth it.

      The one place that the new chips ARE being brought into my shop, as well as my home, is the Brazos mobile chips. Man these babies are sweeeet! Truly kick ass battery life, dual core with Radeon GPU, extremely low heat, quiet as a churchmouse, I liked the ones I sold enough I retired my MSI Wind and got me an Asus EEE with Brazos. This baby holds 8Gb of RAM (which I got for $33, gotta love Newegg!) and that ExpressGate is the best thing since sliced bread IMHO. If I just wanna check my email, surf, or chat it is just 6 seconds from button push to full up and adds two hours to the already 6 hours on the battery! Its like getting TWO netbooks, a ChromeOS style AND a full Win 7 X64, all in one!

      So if you want the most bang for your money and want ALL the features including ECC and virtualization Fuzzy I'd go AMD but if you were my customer I'd suggest you stick to AM3 and get either one of the Deneb or Thuban chips, depending on your budget. I'm currently running Deneb (gonna wait until the after Xmas sales to score my Thuban) and with 8Gb of RAM to feed it she'll do anything I want frankly faster than I can think of more stuff for it to do. The 95w Denebs are quite nice and don't heat your house up like the 125 watters.

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    7. Re:I skimmed a few... by Anthony+Mouse · · Score: 2

      I've seen ECC errors before. It's frequently because the memory is not seated perfectly and if you reseat it they stop. But if you don't have ECC memory, you don't get an ECC warning, your programs just crash.

    8. Re:I skimmed a few... by TheLink · · Score: 2

      subsequently Global foundries fumbled the ball on the production, meaning Bulldozer isnt hitting the clock speeds needed for being competitive.

      125W TDP, 3.6GHz and still not competitive? Why don't they rename it P4/Prescott AMD Edition while they're at it?

      Kinda ironic don't you think?

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    9. Re:I skimmed a few... by Vectormatic · · Score: 2

      very ironic indeed, it is very sad to see AMD gamble the good old netburst-play and then foul it up (as is to be expected really). Even if they had the process-control which intel enjoyes, building something a tad inefficient and praying for the clocks to compensate is just stupid.

      It also reminds me of the original Phenom, AMD overreached themselves on features, didnt provide solid IPC improvements (although for Phenom, there actually was some improvement over K8), and then fumble the clock speed so as to make an uncompetitive product. I just hope they can recover from this with a second Phenom II, sadly though, i dont see a new die-shrink comming anytime soon

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  2. If you are an AMD fan.... by CajunArson · · Score: 4, Interesting

    buy a 6 core Phenom II, overclock it, and pray that AMD can stay around long enough to fix this mess.

    Go check the techreport review and look at the price/performance chart: The 2500K has slightly higher performance, lower price, and *much* better energy efficiency.

    Go look at the LKML where you'll see Linus & Ingo Molnar calling out AMD for design flaws in Bulldozer's cache that AMD wants to paper-over with kludgy software workarounds in the kernel: http://us.generation-nt.com/answer/patch-x86-amd-correct-f15h-ic-aliasing-issue-help-204200361.html

    I feel bad for AMD's engineers. I *don't* feel bad for the marketing hype machine that has been relying on "geek-cred" from sites like Slashdot and the usual David vs. Goliath myth to get unearned praise. If Intel had come out with Bulldozer instead of AMD, we'd be calling this Prescott version 2.0.

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    1. Re:If you are an AMD fan.... by jellomizer · · Score: 2

      AMD had a real good run in the early 2000's AMD actually was selling more PC's with its chips then Intel. Then Intel Core 2 Duo processors came out and AMD had to go back to catch up mode again.

      But I have stopped watching the processor market as closely as I did before. Then I wanted to build myself a PC... I was like Dag-Nabit! They seem to name all the chips with a code name and a number... Now I would expect the larger number next to the code name would mean it is a better chip then the previous code name. However when you change code names around then you start over. I miss 80x86

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    2. Re:If you are an AMD fan.... by Kjella · · Score: 2

      AMD had a real good run in the early 2000's AMD actually was selling more PC's with its chips then Intel. Then Intel Core 2 Duo processors came out and AMD had to go back to catch up mode again.

      I'm pretty sure they didn't and it was just a majority of the retail sales outside the big OEMs. I don't ever think AMD ever had the fab capacity to supply over 50% of the total market.

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    3. Re:If you are an AMD fan.... by SQL+Error · · Score: 4, Informative

      We've benchmarked the 10-core 2.0GHz E7 Xeons against the 8-core 2.0GHz Opteron 6128. The Opteron CPUs deliver about 70% of the performance on our workload for about 12% of the price.

      The AMD motherboards are much cheaper too.

      Bulldozer is underwhelming on the desktop, but it could still deliver great price/performance in the server market. We'll soon see.

    4. Re:If you are an AMD fan.... by TheRaven64 · · Score: 2

      Intel's Pentium was greeted with ridicule in the smoking hot 60Mhz incarnation (15 watts, can you believe that?) It went on to great success after a die shrink.

      I talked to the head of the Pentium Pro to Pentium 4 projects (after he left Intel), and he said that their first power wakeup call came with that chip, when they were told by a company in New York that they couldn't upgrade their desktops because their building's power supply wouldn't be able to cope with the increased load. Sadly, it wasn't until after the Pentium 4 that they really learned this lesson to any degree.

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    5. Re:If you are an AMD fan.... by serviscope_minor · · Score: 2

      When you drop $60k on a server ...then you're doing it wrong. You can get a fully tricked out 2.5GHzx48 6100 with 512GB RAM from SuperMicro for about GBP 16,000. If you want to throw in a 2U case wil loads of disks you might go up to 25,000. But 60k for a server? You're obviously doing something exotic.

      another $20k of licensing fees, one really doesn't care about shaving $2-3k

      That's per processor, by the way, of which there are 4. That's a saving of $8k to $12k, which is beginning to get significant, especially as it's beginning to approach the price of a maxed-out server.

      Give me the fastest CPU.

      In terms of flops/U, the quad 6100s match up very well to the best of what intel has to offer. They're also comparable in terms of flops / W, and stomp all over intel in terms of flops / $. The single threaded performance is lower, but if you're running 48 cores, you probably have a well parallelized task.

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    6. Re:If you are an AMD fan.... by Shinobi · · Score: 2

      This is entire system power use, minus monitor. The systems also used the same PSU's, to remove that factor from the comparison.

      The Sandy Bridge chipset and CPU revisions really cut down power consumption.

      The i7-2600k put under heavy load sucked down 164 watts, the FX-8150 sucked down 243 watts. The i5-2500k sucks down 148 watts under the same heavy load. Another interesting comparison is the A8-3850, which sucks down 165 watts under the same heavy load.

    7. Re:If you are an AMD fan.... by Antisyzygy · · Score: 3, Insightful

      Marketing people are almost always morons. Thats not to say some don't come out brilliant, but its maybe 1 percent. Its one of the easiest degrees to get in college due to the constant dumbing down of college programs, and its accelerated by the number of people that pick it due to a misconception that business degrees will make you a lot of money for little effort. "Dude! You mean I can do easy homework, make teh big bucks some day and hit keggers every night! Bad-ass!". I sincerely wish business programs would start actually demanding MORE out of people rather than making it more accessible to idiots and burn-outs. It used to be a prestigious thing to have a business degree, as it was hard. Now its like 4 more years of high school with classes about "feelings" and barely any math beyond what you need to balance a check book and draw pretty pictures, and sometimes not even that.

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    8. Re:If you are an AMD fan.... by Chris+Burke · · Score: 2

      Well, wait a minute. Obviously it turned out to be a misstep, but what reason do you have for thinking they knew that going in and were just being disingenuous?

      They didn't know. They (the engineers) thought they were just pursuing the next logical step in the path marketing had decided on with the original P4, selling on high frequency. There was very convincing data they showed that they could extend the P4 architecture up to well above 10GHz and get good performance. Nobody in industry called them on it, because they too didn't see the problem that was just around the corner.

      At 60nm, the leakage current of transistors blew up. What was previously a minor problem was now a large percentage of the total power consumed by a chip, I've heard in some cases as much as 50%. This was a big surprise to basically the entire industry -- everyone still thought parasitic cap at the smaller nodes was going to be the big issue. Intel's high-frequency design got screwed more than most, but everywhere there was upheaval as they tried to take it into account.

      One could question the wisdom of pursuing a high-frequency design in the first place. I know I did. But the reason it ended up being unwise was something I didn't predict and virtually nobody else did either.

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  3. Trinity and beyond by epine · · Score: 2

    You have to hope that whatever sacrifice AMD made in this design was made to better enable the CPU and GPU to be fabricated on the same process in Trinity and beyond.

  4. obviously why SB-e not arriving until Q1 2012 by scalarscience · · Score: 2

    Well now I know for sure why SB-E (sandybridge-e) is not arriving until Q1 2012... Intel is just going to continue to milk SB parts for the time being. Sad because I really wanted to get an Ivy Xeon rig to replace my current dual proc mobo, but I'm not sure I can wait until 2013!

  5. AMD isn't about performance anymore by jawtheshark · · Score: 2

    I buy AMD, mostly when I build myself and when I'm on a budget. Not because I like weak chips. I love CPU speed, but I also love to keep my wallet as full as possible. This is what AMD offers: "bang for your buck". AMD is interesting for anyone who wants to balance between spending money and reasonable performance. Want pure performance and it doesn't matter what it costs? Go Intel... No questions asked. (This wasn't so in the Athlon XP/64 days)

    Also keep in mind that we are now really on a computing-power plateau. At least from the point of view of the average user. I've got a frigging Atom D525 as my primary desktop, which isn't exactly a powerhouse. It has some quirks, notably because Firefox sometimes seems to slow down (Installing the 64-bit Linux flash player made the situation better, for some odd reason... It still is not really ok though) Most of the time it works just perfectly fine. I'd wager that adding 50% more power to that chip would nullify my troubles.

    I can't say much about these new Bulldozer machines, but I just ordered an AMD A6-3560 + Gigabyte motherboard + 16GB RAM for less than 250€. That's a lot of power for not much money. (Moms computer died, building a new one for her... She doesn't need much, this should be more than overkill) I'm very keen on trying it out.

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    1. Re:AMD isn't about performance anymore by Just+Brew+It! · · Score: 2

      I love CPU speed, but I also love to keep my wallet as full as possible. This is what AMD offers: "bang for your buck". AMD is interesting for anyone who wants to balance between spending money and reasonable performance.

      Which is why this chip is not a good buy until they drop the price. Right now it is not a good "bang for your buck". Looks like I will be putting Phenom II X6 chips in my existing systems and sitting tight for a year or two.

    2. Re:AMD isn't about performance anymore by Baloroth · · Score: 2

      Right now, yes. But moms tend to keep PCs for 6-8 years. 16GB is not overkill for that

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    3. Re:AMD isn't about performance anymore by mollymoo · · Score: 2

      Quite clearly the cheapest would have been a single 1 GiB stick at 9.69€. The logical option would have been 2 x 2 GiB at 21.98€ because 4 GiB is more than enough and the additional cost over 2 x 1 GiB is negligible. 4 GiB is enough for me to play the Battlefield 3 beta so it's more than enough for your mom to do the same, let alone do stereotypical mom things like emailing you amusing pictures of cats.

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  6. A lot of stuff in this story ... by unity100 · · Score: 4, Interesting

    - First, there is the huge delay intel caused by engaging in fraud by paying pc makers to not use amd chips, right at the time amd was at an advantage.

    - Then there is the fact that these synthetic benchmarks use intel's proprietary libraries, which were proven to work ineffectively when 'non genuine intel' architecture was detected.

    - Then there is the fact that this is a new platform, and its just out, and the main deal with this is being easily increasable in cores. so amd will just add more cores without any research being needed. expect 32 core cpus in a year or so. 16 cores already out.

    - As you can understand these cpus are geared more for server environment, and will take that environment over.

    - Amd is moving to trinity in one year or so. Trinity is the APU format that all amd cpus will take from then on. Llano apus have been quite successful in gaming fro example 50-80 fps in starcraft 2 (crossfired and not) -> you dont need to buy an external card anymore, and if you do you can crossfire it with the cpu contained one. http://www.anandtech.com/show/4476/amd-a83850-review/6 http://techreport.com/articles.x/21730/8 intel is worlds behind in this one.

    and then there is the ultimate question of what the fuck i am going to do if i grab a powerful processor. really. i bought an overclockable board, and an unlocked cpu. and when i played games, i found out that it was mostly the video card i added that did most of the thing. the cpu i had was way, way over any potential requirements and needs of these games. i didnt need to buy a powerful one at all.

    i went about hardware/software forums asking what i could do with a powerful computer. answers have been 'video encoding', 'benchmark', 'seti'. as it seems, any daily usage for cpus are WAY behind the power of modern cpus. to utilize your cpu power at all, you need to do unorthodox, unnecessary shit, or be in a profession that works on these.

    so i think all this performance talk is bullshit. there is no way in hell you will use that performance, even in hardcore gaming with an eyefinity 3 monitor setup in 5000x resolution, with 2x antialiasing and full detial. (and i just have 2x 5670 cards).

    future is in the heterogeneous chips i think. llano already has been a success, and its possible to save 30% on the cost of cpu + mobo + graphics card if you go the llano way over anything intel, and gaming performance is incomparable. when trinity comes, i think there will be a big change in computing. especially when amd puts out a computing platform like cuda.

  7. Couple of hundred bucks it costs to go ECC ? by Lonewolf666 · · Score: 3, Informative

    Couple of 10 bucks, more likely. I've recently bought parts for an AMD-based PC upgrade (in Germany) and the price differences were

    - about 7 euros more for 2x2GB ECC Ram, compared to the same amount of non-ECC. Both Kingston Value RAM BTW.
    - maybe 10-20 euros more for a board that supports ECC. That one is not as clear-cut BTW, it is more a case of having less choices if you want ECC, and the cheapest boards tend to not support ECC.

    In dollars, that's maybe 40 bucks difference total. Or 50 bucks if you want 2x4GB and assume a similar price difference.
    Of course, if you buy Intel, it will be a couple of hundred bucks because their desktop CPUs don't support ECC at all. That means getting a Xeon, and those are expensive.

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