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====GSdx==== | ====GSdx==== | ||
[[image:GSDx2.png|thumb|GSdx]] | [[image:GSDx2.png|thumb|GSdx]] | ||
The default PCSX2 installation has GSdx in 5 versions: SSE2, SSSE3, SSE4.1, AVX and AVX2. They are in fact the same plugin compiled using different optimization | The default PCSX2 installation has GSdx in 5 versions: SSE2, SSSE3, SSE4.1, AVX and AVX2. They are in fact the same plugin compiled using different optimization instructions sets.<br /> | ||
<br /> | You must use only the versions supported by your CPU otherwise the emulator may crash. The difference between these versions speed-wise is in fact minuscule and only some games are showing any improvements in speed when using more optimized version. So if you are unsure, your safe choice is the SSE2 version. Here's the order from the "slowest" version to the "fastest" one for reference: | ||
#SSE2 | #SSE2 | ||
#SSSE3 | #SSSE3 | ||
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#AVX2 | #AVX2 | ||
The new AVX and AVX2 instructions give a minor speed up '''only in | The new AVX and AVX2 instructions give a minor speed up '''only in when GSdx works in software mode'''. These versions will not improve the speed in hardware mode.<br /> | ||
<br />Note to AMD users do '''NOT''' mistake SSE3 with SSSE3 (1 extra S) and SSE4A with SSE4.1, they are totally different and are '''NOT''' supported on AMD systems before Bulldozer/Bobcat. Please fall back to SSE2 plugin instead in case your system has older CPU. | Note to AMD users do '''NOT''' mistake SSE3 with SSSE3 (1 extra S) and SSE4A with SSE4.1, they are totally different and are '''NOT''' supported on AMD systems before Bulldozer/Bobcat. Please fall back to SSE2 plugin instead in case your system has older CPU. | ||
{{Tip| | {{Tip| | ||
*'''SSE2''' supporting CPUs: [http://en.wikipedia.org/wiki/SSE2#CPUs_supporting_SSE2 Check here] | *'''SSE2''' supporting CPUs: [http://en.wikipedia.org/wiki/SSE2#CPUs_supporting_SSE2 Check here] |