Pande came back and said those numbers were exaggerated in Tom's article... so I don't know whether I'd trust the 163 times comment... but the new gpu2 definitely kicks the quads butt...

remember also the cpu wu's work with a lot more atoms.
for example:
a smp wu 2665 works with 14170 atoms...
a gpu wu 5001 works with 576 atoms...

so it's hard to compare them equally..