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Does Dolphin Benefit From Freesync?
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Does Dolphin Benefit From Freesync?
09-30-2016, 10:29 AM
#1
extherian Offline
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Posts: 37
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This is a feature supported on AMD graphics cards and compatible monitors that reduces tearing for variable framerate games.

Since most games on Dolphin run at a fixed framerate, would this actually benefit emulation in any way? Or does Vsync do more or less the same thing?
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09-30-2016, 10:51 AM (This post was last modified: 09-30-2016, 10:57 AM by Craftyawesome.)
#2
Craftyawesome Offline
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I don't know if dolphin does, but this is how the different syncs work

Spoiler:
On normal monitors the picture is updated every 1/60th of a second. Black square= new frame white = old
Assume this is like 40 fps or something
vsync off
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
1/60 later (16.6 ms)
▮▮▮▮▮▮▮▮▯▯
▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
1/60 later
▯▯▯▯▯▯▯▯▮▮
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▮▮▮▮▮▮▮▮▮▮
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effective framrate: 40 with tearing

vsync on
▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
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1/60 later
▮▮▮▮▮▮▮▮▮▮
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▮▮▮▮▮▮▮▮▮▮
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1/60 later
▯▯▯▯▯▯▯▯▯▯

▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
1/60 later
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
effective framerate:30

Freesync/Gsync
▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
▯▯▯▯▯▯▯▯▯▯
when new frame is rendered (25 ms if 40 fps)
▮▮▮▮▮▮▮▮▮▮

▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
when new frame is rendered

▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
▮▮▮▮▮▮▮▮▮▮
effective framerate:40 (no tearing)
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