To be fair though, if you would take a game that seriously stresses the GPU you wouldn't see a 20% difference. You would probably see about the same constant di

To be fair though, if you would take a game that seriously stresses the GPU you wouldn't see a 20% difference. You would probably see about the same constant difference of about 0.5 ms. For 60 FPS that's an increase to 61 FPS.