![]() There is a comparison here between Quick Sync (Skylake version), NVENC (Maxwell version), and x264 Medium (software encoding):Īll 3 are close enough in terms of quality, such that if you are comfortable using x264 Medium, you should be fine using either of the hardware encoders as well. I think the general consensus on recent versions of Quick Sync is that H.264 encoding quality is pretty good, but slightly behind NVidia's NVENC encoding. ![]() I think any improvements in H.264 quality were probably not as significant though or Intel would be touting them as they do the HEVC improvements: Ice Lake (10th Generation) did bring about Quick Sync improvements including gains in encoding speed and HEVC encoding quality. Kaby Lake (7th Generation), Coffee Lake, and Comet Lake processors all share the same Quick Sync implementation so I'd expect encoding quality to be more or less the same across all of these processor versions. There were some significant improvements between the initial version of QuickSync H.264 encoding in 2nd Generation (Sandy Bridge) Intel Core processors up through 5th Generation (Broadwell) and 6th Generation (Skylake).īut I think most of the attention in more recent versions of QuickSync has gone towards the HEVC and VP9 encoding features, so any improvements in H.264 encoding quality have been fairly small in these more recent processor architectures.
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