I have interesting finding for Intel Arc A750. For 480p it works fine in 2d mode but with 720p it often drops and is stuck on 8fps. Even my GTX1080 was able to play 720p cartoons fine.
Interesting is that when I change on Arc to 3D mode it works fine on 720p without drops. Maybe somebody will find this useful.
I tried onnx 4.6 model but seems that it doesn't work.
Today I tested my intel arc again (rife 4.4) and I'm able to do max 720p x2 but only on mpc-hc (I needed to change from default mpv for youtube-dl).
Rife 4.6 crashes on mpc-hc and has stroboscope on mpv (fast flashing black frames).