My 4steps workflow without promt. I use it for scaling and generating frames in video on my rx 6800xt graphics card.
Scaling and generating frames for a 33-frame video takes between ~160 and ~480 seconds depending on resolution after the models are fully loaded. The models are small so it doesn't take long.
It's not as fast, but it provides good quality.
All required models download:
For v2.0 download any upscale model you like from here upscalers
Required custom nodes:
ComfyUI-KJnodes
VideoHelperSuite
ComfiUI-Frame-Interpolation