Thread Rating:
  • 1 Vote(s) - 1 Average
  • 1
  • 2
  • 3
  • 4
  • 5
SSE4.2 support?
#1
Does this extra instruction of the i3/i5/i7 have usefulness for PCSX2? Strange enough I can use SSE2 to SSE4.1 with GSDX and see a 0 FPS change in all games.
-Core i7 920 @ 4.01GHz
-EX58-UD4P
-OCZ 6GB PC3-14400 Platinum
-Sapphire HD 4870 1GB @ 800/1000MHz
-PCP&C Silencer 750W
-RAID 0 2x Seagate 250GB 7200.10RPM
-Windows 7 Ultimate x64
Reply

Sponsored links

#2
That's because you need to test it in scenes where it matters. Those are rare, and you need to have a little luck to find them.
Also it needs very precise benchmarking. A quick check if that intro is 60fps or not won't cut it.

SSE 4.2 doesn't seem to bring any good new opcodes, at least nothing I can think of.
Reply
#3
sse4.2 is useless for pcsx2.

AMD's sse4a's EXTRQ/INSERTQ instructions might be fun for something, but it really won't make much of a difference speedwise.
Check out my blog: Trashcan of Code
Reply




Users browsing this thread: 1 Guest(s)