Lets see, original conroes were about 20% faster clock for clock in single threaded apps vs k8s, now penryns are about 6% faster then conroes in single threaded apps, I guess you are looking at something around 5Ghz+.
well how about in games overall? like old opgl games
There won't be any benefits to having a 4GHz E8400 over an Opteron for old games. PS2 emulation (using PCSX2) on the other hand is very CPU intensive and from what I've experienced it needs my E8400 at 3.8GHz to run well. For that purpose, no pre-Phenom AMD chip will match an E8400 at 4GHz.
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