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AMD Barcelona performance - will it crush the competition?

Posted on Wednesday, July 04 2007 @ 00:15:25 CEST by

The Inq has some info about the performance of AMD's upcoming Barcelona K10 processors:
Recently, we managed to see the sort of performance figures that AMD is promising for Barcelona.

These performance numbers were based on systems using the Opteron 2356, or known to the world of us regular folk as AMD QuadCore at 2.3GHz. The price of this processor is currently set at $796 USD in quantities of 1000, so we'll see what can Clovertown at 2.66 GHz (Xeon 5355) do about it…

So, what will Barcelona deliver?

For starters, SPECint_rate2006 and SPECfp_rate2006 speak the voice of doom for the 366 MHz faster clocked Xeon - and these are the reasons why Intel was downplaying performance of FP and praising the INT.

These figures were from a few months ago, so things may well have changed since then. But in the Integer test, a Barcelona 2.3GHz yields 21% higher score than Clovertown 2.66 GHz, but Floating Point test leaves a staggering 50% performance deficit for Clovertown, and this is not something 45 nanometre Penryn can solve overnight. Unless, of course the clock deficit for AMD is such that Intel speeds past.

When it comes to comparing Barcelona to Santa Rosa, a 3.0GHz clocked Opteron 2222, Barcelona is in general, around 65-70% faster than the highest-clocked dual-core Opteron. SPECweb99 yields a hefty 67% performance increase, SPECweb99_SSL offers 66%, while SAP-SD offers 70% performance increase. The highest gain, of over 100% can be seen in SPECweb2005/Ecom benchmark, while smallest gain was in TPC-C SQL2000, where only 42% gain was marked. This was all based on 2P (dual-socket) systems, of course.

In the four-socket arena, Opteron 8222 versus 8356 offers an average of over 60% performance boost, which is not a small thing - given that clock difference is 700MHz. SPECweb99 and SPECweb99_SSL give 68% performance increase, SPECweb2005/Ecom yields another scaling dream (91%), while most modest increase is again, TPC-C SQL2000. Nevertheless, TPC-C Oracle test will yield 75% performance increase while Terminal Services will offer 71%.
All this should come at a TDP of 95W, which is lower than the 120W max TDP of the Opteron x222 series.



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