Quote from: BioMike on August 28, 2010, 08:24:05 AM
So, what CPU’s support this? Is this only the newest AMD ones? And how many systems are we excluding because of this?
Phenoms, i5 and i7 from what I know. Those are the only CPUs that have a 128 bit SSE2 instruction decoder and benefit at all, every older CPU will be slower. Don’t think about it as “only works on AMDs K10” but rather as “tweak the compiler to produce the exact assembly code we want and still be flexible to support other vector engines in the future”.