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FPU is limited by memory bandwidth,
FPU is kept on waiting for the data.
Flops is proportional to memory bandwidth
for amd: 13.35GB/s ,3.31 GF/s 4.03B/flop
for intel: 11.24GB/s, 2.79 GF/s 4.03B/flop
原帖由 RacingPHT 于 2007-11-25 17:46 发表 ![]()
but not for the FPUs.
2.79 GF/s (3.7%) |
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