Re: Conroe has 3 ALU/integer units
Weird. Wasn't the consensus that there were 4? Could it just be a mistake.
No, the decode issue width is 4. Given that x86 code generally has a load/store instruction for every computational instruction (so integer instructions are 50% of integer code, for example)), I can't imagine you'd need 4 of any single type of execution unit, except in very rare cases.