Not an expert, but with a back of a napkin guess, the minimum for say digital HD, might be something like the following: X x Y x colour_bytes x frames x 8bits

Not an expert, but with a back of a napkin guess, the minimum for say digital HD, might be something like the following: X x Y x colour_bytes x frames x 8bits Eg, 1280x1080x3x60x8=1.99Gbps So at 133Mhz, each cycle the RP2040 would have to push 15 bits out. It's got 2x cores, can be overclocked at double reliably, and has a bunch of programmable IO machines, so maybe doable, but likely not 4K. (More around 10-20Gbps.)