| ICStats said: Jaguar doesn't have AVX2, only AVX. Anyway it's not quite what you think. PowerPC's SIMD has always been superior to those found in x86. AVX2 (finally after 8 years!) comes closest by adding more integer SIMD, but still missing a few types of instructions that VMX and Cell SPUs have. Actually there pretty similar for the most part ... Top end Haswell (Finally after 8 years?) has more FLOPs on paper than the CELL processor, but [as you have said yourself] you can't just compare architectures directly like that. The top end Haswell also has better prefetching mechanisms, better IPC per core, better branch predictors, a simpler concurrency model, and better caching system. AVX peak is at 256bit SIMD, but that is rarely used. Most SIMD usage is still 128bit, and there's more to writing code than doing FMADs. Cell SPUs can pump two 128bit SIMD instructions per cycle. This can come close, or even beat Haswell in some tasks. Anyway it doesn't matter, PS3's CPU is wasted doing GPU work - while a PC, or Wii U doesn't have to do that. Still it seems Wii U CPU is underpowered compared to gen 7. |
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