Help understanding CPU performance and voltage So I've noticed while overclocking that my RealBench scores change depending not only on frequency, but also voltage. For instance, I can get my 8700k stable at 5.0GHz and 1.35v vcore, but it actually gets a lower RealBench score compared to 4.9GHz at the same voltage. It also took longer to complete a Blender BMW render.

Why does this happen? I verified that nothing was running in the background to cause this performance disparity. I would expect only frequency to have a measurable impact on something like Blender performance.