fatslob-:O said:
how I explained it. The reason it's out of sync is not because the GPU can't keep up like you thought but it's simply due to the fact that the display's refresh rate doesn't match with the video cards refresh rate.
A v sync doesn't cause massive performance regressions and it's not intended to so it'll only drop by 3FPS at best.
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You said yourself that v-sync is a double edged sword. The plus side it that it cuts out ugly and distracting screen tearing, which the 360 version of Bayonetta suffers from in abundance. The negative side is that it can impact framerate by locking the GPU down to a set rate instead of letting it tear frames to run faster.
The 360 version of Bayo opted to tear frames rather than make the framerate drop any further than it already does. Bayo 2 went the other way, enforcing a strict no tearing policy, likely because the GPU could keep a decent pace without going out of sync.