Re:Testing AMD's Bergamo: Zen 4c
by ajross on Sunday June 23, 2024 @10:33AM
(#40767732)
That was true through the 90's, but not anymore. A typical datacenter unit from 2014 would have been a 4-socket Ivy Bridge-EP with 32ish ~3 GHz cores. You aren't going to emulate that feasibly with equivalent performance on anything modern, not yet.
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Cycle exact? Sure. But what are the odds you need that for some x86 software made in 2014.
Otherwise, via translation techniques, getting 80% of native performance isn't unheard of. Which would be very fast relative to any such Ivy Bridge server.
Transitioning away from x86 definitely is feasible, as very successfully demonstrated by Apple.