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Old 19th October 2020, 12:48   #6  |  Link
clsid
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Join Date: Feb 2005
Posts: 5,643
All modern players, including VLC, are able to use AVX2 instructions. But those are CPU instructions and thus only have effect on software decoding performance. They don't matter for performance if you use hardware accelerated decoding using your graphics card (GPU). And they certainly do not have any effect on quality at all.

In case of modern video formats, the decoder does not have any effect on quality. They should all give equal quality as defined in the format specification.

The main thing that effects the quality of playback is the video renderer. The algorithms that are used for scaling the video and upscaling the chroma. Plus any optional algorithms for postprocessing such as debanding and noise removal.

If you want best quality you should use madVR as video renderer. With a player such as MPC-HC.
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