Michaelius
Supreme [H]ardness
- Joined
- Sep 8, 2003
- Messages
- 4,684
http://webcache.googleusercontent.c...md_bulldozer&l=en&a=&cd=1&hl=pl&ct=clnk&gl=pl
I wish they also put nehalem into comparision.
I wish they also put nehalem into comparision.
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If AMD managed to atleast get Bulldozer to perform on par with Nehalem, then it might be a little bit of a disappointment, but not a total failure.SiSoft said:The native CPU benchmark reveals that Intel had done a very job with "Sandy Bridge" and it is hard for AMD, even with a fresh design, to keep up with its very latest. If it came earlier it could have defeated the older "Lynnfield/Nehalem" (Core gen 1).
So, are we concluding that this article is bullshit?
But Turbo only increased the clockspeed to 3.1 GHz with 4 cores, and 3.6 GHz with 1 core. The scores for a purely 3 GHz HT enabled SB can be found below:Actually, its even more skewed as SiSoft's 2600K baseline scores were from a previous test vs. Nehalem with Turbo on.
http://www.sisoftware.net/redirect/review.php?id=8179
That article required a lot of work. As Bulldozer approaches the Intel trolls are getting desperate.
But Turbo only increased the clockspeed to 3.1 GHz with 4 cores, and 3.6 GHz with 1 core. The scores for a purely 3 GHz HT enabled SB can be found below:
http://www.sisoftware.net/?d=qa&f=cpu_intel_sb
Of course, these are all synthetic benchmarks. They are disappointing though.
I will be waiting for the real-world benchmarks on release day to get the other half of the puzzle.
I think this comment on that page sums everything up, and is probably the only positive comment in the entire article:
If AMD managed to atleast get Bulldozer to perform on par with Nehalem, then it might be a little bit of a disappointment, but not a total failure.
Keep in mind that according to some of those benchmarks, the Bulldozer doesn't even match previous gen Nehalem. Also keep in mind they benchmarked the FX-8100 2.8ghz Bulldozer pitted against a 2600K at 3.0ghz. That right there makes the comparison a little more skewed for the Intel, but that 200mhz difference doesn't account for all of the difference. It does seem extremely odd that they would downclock a 2600K to just 3.0ghz when comparing it to a 2.8ghz bulldozer. Why wouldn't they just downclock it again to 2.8ghz or use the 2600S model?
it looks even and legit, however we don't know for sure that its a legit test till after launch and its confirmed from another source. the brightsodeofnews did play with a c2 es chip and wernt very impressed with itSo then it's not bullshit?
brightsideofnews.com said:Regarding the performance of Bulldozer, we believe it is still too early to make a final verdict. There have been numerous leaked benchmarks over the course of the last months, but in most cases the credibility of those is strongly doubted. The leaked performance numbers are allegedly from engineering samples (ES) and were lower than expected. There are differing opinions regarding this aspect. Some people think, that Bulldozer is simply that bad. Others believe, that the ES chips were hamstrung by some bug that AMD would fix in the release stepping, or the popular theory that AMD somehow managed to artificially hamper performance to keep the secret until the very last day.
Here at Bright Side of News*, we had our fair share of playing with the Engineering Samples clocked at 1.8GHz and 3.2GHz, and in both cases the performance was less than satisfactory - especially in terms of memory bandwidth, which was seriously lagging behind Sandy Bridge processors (lower efficiency).
Assuming the info from Gigabyte is valid, the stepping theory becomes less likely, as said ES chips had the same B2 stepping as is listed on the SKU table.
Question. Which Sandy Bridge are they using for the tests? I hear 2600k, but I don't see it mentioned anywhere in the article.
Also, these results are, I don't know, a bit strange. A i5 2400 is probably significantly faster than Bulldozer in that bench. How could they expect to get $300 for it?
Mind you, I know this is one bench. I wish I knew their full setup. I might have overlooked it.
Question. Which Sandy Bridge are they using for the tests? I hear 2600k, but I don't see it mentioned anywhere in the article.
Also, these results are, I don't know, a bit strange. A i5 2400 is probably significantly faster than Bulldozer in that bench. How could they expect to get $300 for it?
Mind you, I know this is one bench. I wish I knew their full setup. I might have overlooked it.
both cpu's had turbo enabled. the amd cpu had 3800mhz tested (2800 base/3800 turbo) vs 3600(3000base/3600turbo for the intel camp) this gave amd the clock speed advantage. its shown clearly in the spec's section. the test is valid as it was ran. they tested a lower speed bulldozer vs a lower speed sandy.
not really how turbo works, since turbo usually won't push all 4 or all 8 cores to 3.8 / 3.6 ghz, usually only 1-2 that are under heavy load, if the others are not loaded.
who knows i could be wrong.
Some of the benefits of AMD Turbo CORE include:
Up to 500MHz of additional clock speed available with all cores active. This means even with 16 cores active with server workloads, all cores can boost at the same time. For those customers that want to maximize their performance, they now have the tools to do it.
Even higher boost states available with half of the cores active. We’re not stating exactly how high processors can boost with AMD Turbo CORE, but obviously if there is room for up to 500MHz with all cores active, fewer active cores would obviously mean less power, and more headroom to recapture with AMD Turbo CORE. At launch you will see processors marketed with a base and a maximum frequency, base will reflect the actual clock speed on the processor and max will reflect the highest AMD Turbo CORE state.
AMD Turbo CORE is deterministic, governed by power draw, not temperature as other competing products are. This means that even in warmer climates you’ll be able to take advantage of that extra headroom if you choose. This helps ensure a max frequency is workload dependent, making it more consistent and repeatable.
With Bulldozer AMD now gives customers ways to maximize their processors for various roles in the data center:
I think these benchmarks are purely bull.
neither amd or intel will push the full turbo to all cores under load. if they did force the chips to do it than the test would be garbage because it wouldn't show true performance.
the sandra test never showed the i7 as a 2600 model, it may have been a xeon model but most likely a pre-production chip before clock speeds were finalized.
i want to see how they do at folding@home.
Price is everything for me. I like cheap performance.
It's not like the highest end BD will be $50 cheaper than the i7 2600. I would expect AMD's prices with BD to be much closer to SB prices than Phenom II was since now AMD will be competitive.
Since it only shows 6MB of L3 cache and 6EU on the GPU, that wouldn't make it an i7 at all, but rather something in the i5 lineup which mean no HT and HD Graphics 2000. The lowest common denominator would be an i5-2400 downclocked to 3.0Ghz, but with Turbo Boost multipliers overclocked. Basically a sub-$200 chip.the sandra test never showed the i7 as a 2600 model, it may have been a xeon model but most likely a pre-production chip before clock speeds were finalized.