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What are the differences between VCE/VCD ASICs on IGPUs vs Descrete GPUs?

Question asked by nurgletheunclean on Sep 9, 2020

I have been patiently waiting for the Ryzen 4700g.  I would like to do hardware encoding of video and would like to know if there is any difference in performance between that IGPU and a descrete GPU like a rx480.  I know NVIDIA's NVENC performance differs between cards of the same generation due to placing extra encoding units on the higher end cards..  But my experience between a Vega56 and an RX480 perform about the same.  Can I expect the same encoding FPS on a IGPU as an RX480?


I assume the 4750g will have the same IGPU, so how would that compare to encoding with a 3700x + RX550?


On a side note--Is AMD fluidmotion ever coming back to future products?