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→GPU driver latency
===GPU driver latency===
There is video latency caused by the GL drivers in Windows/Linux. Both the GLX X11 and Windows GL/D3D drivers are are full of hacks, codepaths, and buffer schemes that cater to benchmarking applications and games. This is counter productive when the aim is low-latency audio and video synchronization for emulators. You don't want all this stuff going on in the background.
Hard GPU sync options in some emulator frontends can reduce or remove latency from buffering at the possible expense of performance.
