justcallmetom13 :
How much of a performance boost would you get by overclocking a i5-3570k?
I don't know what clock speed I want to go for, what would be a safe temperature at which I would get a significant change in everyday use?
The o/c varies from CPU to CPU, but mine easily hit 4.4GHz @ 1.14v, max temps of 60C with the Coolermaster evo. Performance boost is effectively the same as the o/c, about 20-25% at 4.4GHz.
I had to go up to 1.25v to hit 4.7GHz, which creates much more heat, so wasn't worth it, 4.4GHz was a good compromise.
I've recently changed to the Xeon E3-1230-V2 (straight swap) and I'm very pleased with it's performance at stock clocks (3.5GHz), which generally exceeds my I5 @ 4.4GHz as it has hyperthreading, but cost slightly less. This might be another one to consider.