Thread: AMD vs Intel
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Old 2013-02-19, 20:20   #4
ewmayer's Avatar
Sep 2002
Rep├║blica de California

22·2,909 Posts

See here for details on how AMD screwed the pooch when it comes to SIMD (SSE2 badly, AVX catastrophically).

There may be some gains to be realized from use of fused mul/add (in SSE2 mode only, though - AMD AVX is literally worse than useless here) on the more recent chips, but from the perspective of someone like George who needs to choose his coding time carefully, that's a lot of work just to get a poor chip design to "suck less".

Intel's forthcoming implementation of AVX2 will only make the performance disparity that much greater.
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