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Sse 2, 3 and 4.1
Good to know, thanks.

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i have question about PCSX2 and how it use instructions :

other plugins ( SPU2-X ) do they use instructions ? Smile

and can i manually chose the instruction

why can't GSDX chose the right instruction ( highest available Wink ) automatically Smile ( but because of somehow exprimental AVX instruction this may cause problems Sad )
if not and why not to make ( like AVX instruction we need to discuss this more often Wink ) the unsupported instruction cannot be chosen in plugin/BIOS selector Smile
I don't see any performance difference between 3 instruction set mode. Perhaps it is too small to be noticable.
(08-31-2011, 11:30 PM)Polantaris Wrote: IE, is SSE2 the slowest, SSSE3 the middle and SSE4.1 the fastest, or vice versa?

Not quite, while "the bigger number, the better/faster" applies this depends on the game and scene playing. Most of the time the difference between SSSE3 and SSE2 is minimal, SSE4.1 can be a bigger impact but still depends a lot on the game and scene you're trying.
Core i5 3570k -- Geforce GTX 670  --  Windows 7 x64
SPU2-X uses SSE2.
My guess for GSDX is since the speedup from using S3E3+ is so small using runtime checks would just make it slower.

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