Quote Originally Posted by SP33DFR34K View Post
I don't have enough background in multithreading yet, but it should be an issue of concern. Something tells me that in heavy multithreading application, the slower core will bottleneck the other cores.
The best and most simple way to "calculate" the speedup from variable core OCs is to take the arithmetic mean of all frequencies of the cores.Yeah,it sounds simple and "dumb",but that's closest you will get when calculating the OC result in some multicore aware app.In monothread app. it depends on which core you run it,so you can bind it to the fastest core/OC and that way you will insure the best performance.
From available data,K10's perf. seems to be somewhat limited by ram bandwidth and Northbridge(L3) clock as well.The L3 runs at measly 1600Mhz/1800Mhz and we should see some decent OCs on L3 with retail Phenoms.I think tictac posted the way how ram speed is calculated and how Northbridge speed is calculated.