I have an Nvidia Geforce RX3070 but have always been doing my Deinterlacing and upscaling using the PC CPU, as that’s what many people have suggested in the past.

However, does it really make a difference, and how do others go about their processing?

GPU utilization depends on a lot of factors, including the different models used and the parameters you are using. This along with RAM are major factors to take into consideration while upscaling.

I will note using your CPU will usually result in a slower processing time however will be a more stable process.