Originally Posted by Blameless
Assuming air or water cooling, and a certain minimum quality of all components (no total crap and nothing outright defective), the CPU is going to be 99% of the overclock.
For most people there will be no perceptible difference if they spend 120 dollars on a motherboard or 400 dollars on a motherboard.
Don't completely agree with this.
A motherboard's VRM design and component quality will
affect overclocking. You will especially notice the difference when you really push the volts and clocks. Also, when it comes to long term stability, a lower end motherboard generally tends to do poorly when compared to a high end board.
It's very simple, crappy VRM design and lower quality components result in "dirtier" power delivery to the CPU, which in turn affects stability issues when overclocking. Evidence for this can be found all over the net. Do people remember when the Gigabyte X58 OC came out? People were working wonders on those boards due to its great VRM and component quality (amongst other things).
It's hard to put it in percentage terms, so not going to try.Edited by hirolla888 - 3/18/12 at 6:34pm