1. There is better quality for H264, PSNR +0.2dB (8%), but encoding performance are only 56% of Pascal generation!
2. When compare Pascal preset hq and Turing preset fast, quality is better by +0.1dB (4%) and encoding speed is same (1 NVENC Turing = 2 NVENC Pascal)
3. When we compare high quality profile, encoding performance of Turing are only 24% of Pascal!!!!!!!!! => Not suitable for any 4K content, but quality is almost same as SW libx265, PSNR +1dB (40%)!!!!
So I still don't get why Nvidia didn't put 2xNVENCs on Quadro RTX 5000,6000, it could be killer product.
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±×¿¡ ´ëÇÑ dev talk ¸µÅ©ÀÔ´Ï´Ù. ÀÚ¼¼ÇÑ ¾ê±ä ¿©±â¼ º¸½Ã±æ..
https://devtalk.nvidia.com/default/topic/1038493/video-codec-and-optical-flow-sdk/details-about-nvenc-in-turing-/5
We just put Quadro RTX to production, performance are still poor, but quality is better.
Actualy we have 24x Quadro RTX 5000 in 6 servers, next week We will add another 16x Quadro RTX 5000, so totaly 40 GPUs.
It is very sad, that Quadro RTX 4000, 5000, 6000 has all the same performance in NVENC.
-------Quality vs Performance table for 1080p50 at 3Mbit/s-------
codec parameters GTX fps RTX fps SW fps GTX PSNR RTX PSNR SW PSNR
h264 -bf 3 -preset hq -profile high 2x334 375 8.5 34.817637 35.032718 34.794732
h265 -preset fast 2x430 678 3 34.706381 34.797363 35.776912
h265 -preset hq 2x338 155 1.6 34.719312 35.318421 35.799952
h265 -bf 4 -preset hq - 161 1.6 - 35.768031 35.799952
:::::::::SUMMARY:::::::
1. There is better quality for H264, PSNR +0.2dB (8%), but encoding performance are only 56% of Pascal generation!
2. When compare Pascal preset hq and Turing preset fast, quality is better by +0.1dB (4%) and encoding speed is same (1 NVENC Turing = 2 NVENC Pascal)
3. When we compare high quality profile, encoding performance of Turing are only 24% of Pascal!!!!!!!!! => Not suitable for any 4K content, but quality is almost same as SW libx265, PSNR +1dB (40%)!!!!
So I still don't get why Nvidia didn't put 2xNVENCs on Quadro RTX 5000,6000, it could be killer product.
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