X264 Image Quality Analysis: SLOW is NOT worth it (GN Follow-Up)
2,933I sat out to finally prove something that I've been saying for a long time: X264 Slow is not as magical as people say it is, and it's definitely not worth the performance trade-off for 99% of streamers. Oh, and AMD's streaming benchmark at E3 2019 was a really terrible showing. I think I did a good job here and after many more hours than I'd prefer to admit, I'm ready to show you why.
CLARIFICATION: The Elgato CAM LINK and CAM LINK 4K support 4:2:2 YUY2. I forgot about those when I was scripting. I don't see those as gaming devices. The HD60S/Pro's YUY2 modes are probably usable, but I've been unable to confirm actual 4:2:2 color space. The point was, don't use their XRGB modes. Use YUY2 or NV12 from Elgato.
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This is a follow-up to GamersNexus's video: Explaining AMD's Misleading Marketing: X264 Stream Quality & Benchmarks -- https://www.youtube.com/watch?v=jzaXvEPyKd0
Someone followed up and produced a LOT more data! https://www.reddit.com/r/Twitch/comments/c8ec2h/guide_x264_encoding_is_still_the_best_slow_isnt/
What I hope to clear up here is that the problem is not "Slow is too intense so no one uses it, thus it's a bad benchmark" but rather that "Slow literally should not be used for this purpose."
Also working against AMD is they oddly chose 10mbps for their bitrate - at which point, my testing proves that even VeryFast is of similar quality to Slow, so using slow was still a very poor benchmark choice.
There's a lot that went into this particular project that was too much to cram into this video (crazy to think, given its length) so I have ALL the nerdy details in my write-up here: https://eposvox.com/post/x264-is-not-worth-it--a-bad-benchmark--gn-follow-up-image-quality-analysis
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โบโบ TIMECODES: โบโบ
Intro - 00:00
About This Video (context) - 01:50
Misleading vs. Lying - 02:59
Methodology - 06:34
Comparisons - 08:36
Tips to Improve Image Quality - 20:13
Conclusion - 29:34
โบ Nvidia's RTX NvEnc is beyond impressive... (GPU encoding explanation, x264 Medium Comparison) -- https://www.youtube.com/watch?v=-fi9o2NyPaY
โบNEW NVENC EXPLAINED, Stream Service Integration & MORE! - OBS Studio v23 Update Guide -- https://www.youtube.com/watch?v=kW7Hd7kKGI4
โบ Old NVENC vs New NVENC - Quality Comparisons, Settings, What You Need to Know! (FULL GUIDE) -- https://www.youtube.com/watch?v=6fyP7kg0QAc
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AMD E3 2019 Reaction Stream VOD - https://www.youtube.com/watch?v=kVi5K6-y2p4
โบ AVerMedia Live Gamer 4K Capture Card Review - https://www.youtube.com/watch?v=TY-pVvRt3_o
โบ AVerMedia Live Gamer Ultra Review - https://www.youtube.com/watch?v=MebbJZAcS7s
โบ Elgato 4K60 Pro Review - https://www.youtube.com/watch?v=rOm753JQJi4
(Music licensed by Monstercat)
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