Advanced Micro Devices Inc (AMD)

[borusa]

SZ, I ask you - how can Opteron be slower than Athlon?

Glad you asked. Opteron is a 64 bit machine that runs 32 bit code very well. You might want to study the circumstances around the transition from 286 to 386, 16/32 bit respectively.

Few if any 32 bit programs by definition are optimized for Opteron hence the '32 bit'. Not that they couldn't take advantage of the flat memory adressing. But, that would be superflous effort, since 64 bit applications will have that advantage and much more.

Joe H. has layed it all out, happy reading:

http://www.siliconinvestor.com/stocktalk/msg.gsp?msgid=19131088