Advanced Micro Devices Inc (AMD)

[KeithDust2000]

FOR YB: DOOM3 CPU shootout

from the conclusion:

AMD owners have much more of a reason to rejoice: the Athlon 64 runs Doom perfectly. It's almost as if the game was built to run best on an Athlon 64; maybe AMD should invest some marketing dollars in their own "The way it's meant to be played" campaign. And to make things even better, you don't even have to have the fastest Athlon 64 to get great performance, even the meager 3000+ manages to offer performance equal to that of Intel's Extreme Edition Pentium 4 at a much lower cost.

[...]

In the end, the winner of the final battle is clear: the AMD Athlon 64 is the processor for Doom 3.

http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2149