Since Shintai likes to think he knows IPC advantage K10 has over K8,let's see what Randy Allen had to say in ZDnet interview some months ago:
http://news.zdnet.com/2100-9584_22-6...ml?tag=st.next
Quotes:
From the 1st page:
"We expect across a wide variety of workloads for Barcelona to outperform Clovertown by 40 percent," Allen said. The quad-core chip also will outperform AMD's current dual-core Opterons on "floating point" mathematical calculations by a factor of 3.6 at the same clock rate, he said.Barcelona employs several features to improve performance, Allen said. Among them:
• It's AMD's first chip with a built-in level-three cache. Cache memory can respond faster than main memory, and Intel has relied on large amounts of cache to improve its processors' performance. Each Barcelona core has its own 64-kilobyte first-level data cache, 64KB first-level instruction cache and 512KB second-level cache; and the four cores together share a 2MB third-level cache, though AMD has said that size can be increased.• AMD redesigned the Barcelona core, marking the biggest changes since the company made its 2003 transition from its 32-bit Athlon chips to the current 64-bit lineup. The magnitude of the transition is about halfway between the small tweaks AMD has made to Opteron over the years and the clean-sheet redesign Intel employed in moving from NetBurst to its current Core design, Allen said.Is Randy not telling the truth here about FP improvement?So he tells per core K10 is 80% faster clock for clock,3.6x faster considering all four cores.• A faster floating-point engine performs mathematical calculations--long an Opteron strong suit, though not as important a part of the chip as that for integer operations. At a given clock frequency, a Barcelona core outperforms a current Opteron core by a factor of 1.8. By going quad-core, a Barcelona chip overall will provide a boost factor of 3.6, Allen said.
Originally Posted by informal
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