posted on Apr, 24 2009 @ 01:06 AM
It's not only dependant on GHZ - it's also dependant on the archetecture. For example, a Core 2 duo will be twice the performance of a Pentium 4 for
the same clock speed WHILE also having twice the cores. So a 1.83ghz Core 2 duo has about as much power as a 3.6ghz Pentium 4 Dual Core. However, it
There are different models of each processor. The Core 2 duo has different series, each with slightly different architecture, bus speeds, and cache.
If those are identical then going from 2.0ghz to 2.5ghz is NOT a big deal - I'd probably go for the 2.0ghz version if it's significantly
cheaper. That being said, if the 2.5ghz is a Penryn T9xxx series Core 2 duo versus a 2.0ghz Merom T5xxx or T7xxx series Core 2 duo then you should
DEFINITELY go for the T9xxx series.
So to answer your question, go for a T9xxx Core 2 processor, over anything else. Going from 2.0 to 2.5ghz probably won't be a big price increase.
Going from 2.5ghz to 3.0ghz will. I think the 2.5ghz would be best.... what are the prices anyway?