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Old 10th April 2021, 00:29   #450  |  Link
Yups
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Join Date: Sep 2011
Posts: 362
I have finished my first GTX 1660 test from my last video sample. I have tried lots of different settings and this is the best I could find (b-frame ref middle gave me a nice score boost).

Code:
 
Intel Demo Clip 1080p         VMAF    PSNR    SSIM     VQM     speed    bitrate

Quicksync H265 
Iris Xe CQP best              91.76   41.85   0.9748   0.790   67 fps   2438 kbit

NVENC H265
GTX 1660S CQP best            90.62   41.28   0.9699   0.885   150 fps  2439 Kbit

x265 (Staxrip 2.1.9.0)
i7-1165G7 CRF slow            93.20   41.90   0.9754   0.800   8 fps    2430 kbit
i7-1165G7 CRF medium          91.05   41.35   0.9744   0.861   19 fps   2440 Kbit
i7-1165G7 CRF very fast       89.99   40.97   0.9726   0.894   32 fps   2440 Kbit


x264 (Staxrip 2.1.9.0)
i7-1165G7 CRF slow            89.38   40.21   0.9693   0.974   30 fps   2425 Kbit
https://drive.google.com/file/d/1Nzl...ew?usp=sharing
https://drive.google.com/file/d/1onL...ew?usp=sharing


Metric scores are a mixed bag, respectable VMAF and PSNR scores but not that good at VQM and especially SSIM metrics. Subjective frame to frame comparison it's obvious detail preservation is a lot worse compared to Iris Xe (VME/GPU) and x265.
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