Well I'm gonna end up buying AMD Because it's cheaper. Among other reasons.
One of my friends that hangs out here told me that. Amd's SSE4a is not supported in the EMU because that SSE4a isn't what the developers need for the emulator. But the real SSE4 that is in Intel's processors is what the graphics Plugin is designed for.
So Do I have to use SSE3 on a amd proccessor that only does: MMX, SSE, SSE2, SSE3, SSE4a,3DNOW! Professional?
02-19-2011, 08:27 AM
(This post was last modified: 02-19-2011, 08:29 AM by Shadow Lady.)
Current AMD CPUs don't offer SSSE3 or SSE4.1 which is what the plugin uses so you will be able to use only the SSE2 offering. If you wait to get the next generation of AMD CPUs tho you should be able to use SSE4.1 and AVX (currently being implemented in GSdx) without a problem so there's that, but if you get an AMD CPU now then only SSE2.
Core i5 3570k -- Geforce GTX 670 -- Windows 7 x64
As with most any AMD, you'll be limited to SSE2. SSE3 is not supported, SSSE3 is.
SSE4a is rather useless in general. IIRC, it has like 14 of the 50 some instructions that SSE4 has.
I'm not sure when exactly there where coming out (this year), but you could find more on them if you search with the term "AMD Bulldozer".
Bobcat does support SSSE3 though at 1.6GHZ it probably not fast enough.
Bulldozer is coming Q2 and supports all the SSEs,AVX,XOP, and FMA4.
02-23-2011, 12:23 AM
(This post was last modified: 02-23-2011, 12:24 AM by Dalamar.)
You REALLY don't want to buy a CPU that doesn't support AVX, the difference is huge (at least in linpack and the avx cloth demo). Like, 50%++ speed increase huge.
Sandy Bridge and later Intel cpus have AVX.
Bulldozer from AMD will have AVX this year but I predict that, as usual, AMD's going to suck at per-core performance (which is what matters most).
Supposedly their implementation of Intel instructions may not be as efficient, as well.