However, our own benchmarking using nbench, unixbench, and a home-grown
utility (twobod) all show that any differences are attributed to clock speed.
do you have any sense for whether these are entirely in-cache benchmarks?
that's the most obvious explanation. nehalem is all about the new memory
interface - the cores are basically just core2's (with HT added and some
smallish tweaks to caches, etc). basically 2x 2-wide GP flops/cycle/core.
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