(06-28-2009, 10:53 AM)wario184 Wrote: would it get a few more frames with a 64bit os?
Perhaps a few at most if your lucky, I wouldn't expect to get anywhere at all really with a Pentium 4 except maybe with some 2D games or games with very minimal 3D geometry.
I'm not sure if the Pentium 4 supports 64-bit, if I am not mistaken only the late models/versions of Pentium 4 supported EMT64 (x86-64), if your Pentium 4 is one of the earlier models/versions it is likely it does not support 64-bit.
Keep in mind that you need both a 64-bit operating system and a processor that supports EMT64 (x86-64) or else you won't be able to install a 64-bit operating system or use the 64-bit builds of Dolphin.