NVENC: Why does AVC look so much better compared to HEVC and AV1?
When the topic of local recordings come up, AV1 and HEVC are recommended over AVC everywhere. In my testings it seems like AVC does produce a way better looking picture with lower bitrates (134Mbps CQP 20) than HEVC or AV1 with higher bitrates (554Mbps CQP 5 / 215Mbps CQP 5).
AVC = size 262Mb, 134Mbps CQP 20
HEVC = size 1,03Gb, 554Mbps CQP 5
AV1 = size 425Mb, 215Mbps CQP 5
Format: 1440p 60fps
AVC blows them both out of the water in terms of visual Quality and filesize.
Whats going on here? Why are HEVC and AV1 so much worse, and why is everyone recommending them over AVC when they are inferior?
Look at the screenshots for comparison.
1. Screen is AVC
2. Screen is HEVC
3. Screen is AV1
Also, where can i find up to date encoder recommendations from Addie? I had a hard time finding any conclusive and complete information out there from him. Only bits an pieces in several videos but most of them are rather old. Links for this would be appreciated.
3 Replies
In motion while watching the clips AV1 and HEVC look even worse and more blocky and compressed than on the screenshots here.
depends what ecoder chip is being used unless its just software? different vendors have different maturity, add to that the multiple different encoding chips across the different generations and it will boggle the mind.
I think i remember in one of his nvidia 40 series or 50 series vids for recording he mentioned settings
i for one definitely noticed terrible quality when going from the nvenc hevc encoder on my 3090 to the AV1 encoder on my 7900xtx. So i just kept the 3090 for recording instead of "making do" with having 1 gpu in my system.
GG @TweedReborn, you just advanced to level 2 !