[CKemu]

Kekko coded a way for vuREC to use just SSE and not SSE2 instructions, so the next release will support vuREC for even the older CPU's. Whilst this is great, eventually that will become redundant, as simply put the older cpu's will be useless, and you will NEED a modern / future CPU.

 

[CKemu]

SSE vuREC runs at 'similiar' speeds to SSE2 base vuREC. So you will get a significant speed boost, when I say significant I mean 1 FPS to around 10 FPS (depending on game), which is significant because it's 10x faster, but no where near full speed.

It's hard to say, given so much will change evern between now and release.

 

[CKemu]

GSsoft would totally make vuREC pointless, as the graphics rendering would be so slow you wouldn't notice the effects of vuREC, GSdx will be the way to go, if you want to see the speed.