my cpu is pd 805
it support sse3
but i cant see sse3 in the osx~~

i assume you talking about a 10.4.4 or 10.4.5 installation.. i hear from good sources that if your cpu has SSE3 then it is being used even if not reported so by the system profiler.

is thre a way to test if sse3 is being used ?

Ive have asked that, and i got no reply.... would be nice to know for 100%

it is used even if the emulator is installed, cause the emulator trap illegal instructions if you got a SSE2 cpu then it emulates SSE3. if you got SSE3 it won't trap anything so it'll work natively.

icic...but when i use a maya and 3dsmax software for rendering, it is very slow....osx need 5 min
but in windows just need 1:08 min
why osx is so slow???

Are these unibin applications or are they still ppc apps, that are running in rosetta?

this software is for mac os
http://www.alias.com/eng/products-services...index_mac.shtml
and what is rosetta??
thx!!!

Yes the software is for mac os.

But it was compiled for the PPC platform not the Intel platform.

Therefore it is running in a CPU instruction set translation layer called rosetta, which is part of mac os x for intel machines.

This is why the programs are running slow, not because of SSE3.