Thanks a lot! This is the perfect solution now. I'm using a 2080TI, and I can get full 1080p interpolated with RIFE 4.6+FSRCNNX+Krig running flawlessly. I cannot believe it! GPU memory usage is ~6GB and utilization ~80%. No need to get 4090 for now thank god!
Now I am using a project named mpv_lazy in github(https://github.com/hooke007/MPV_lazy, in Chinese), and it enables RFIE v4.6 using tensorrt. My video card is 3070 laptop and it works totally fine in 1080p real-time doubling FPS, the performance of which is much better than the SVP4. Hope the svp4 can support the trt RFIE as soon as possble.