actually thats a very good point grim gopher. if one car is more aerodynamically enginnered than a box with 3x the horespower the former will perform better.
amd is enginnered well, but intel has higher clock speeds, thus equal performance.
There's also another little issue that you guys are forgetting to mention.
Heat. AMD's produce a lot of heat, that needs to get dissipated. I would hate to see the heat sink and fan required if AMD produced a chip that had a 3.8 GHz clock.