Since we're bus-performance willy-waving...
Still slower than 7447 166MHz bus + DDR though 
Which in turn is far slower than my (now entirely outdated) Core2 Q9450 1333MHz FSB + dual channel DDR3 (with suitably evil 6-6-6 config). Then again, it is totally eclipsed by the 104GB/s VRAM to VRAM (ie transfer, not just read or write) bandwidth of the GPU. Which is again rather eclipsed by the latest cards.
-edit-
Although, I better be careful what I say about bus-performance. I might wake up Shaun :lol:
