I'm currently running cpu multi miner on RaspberryPi 3 with raspbain lite. Each card will run around 25 hashes per second using the ARM possessor only. This requires alot of code optimization but it can be done. Unfortunately the RaspberryPi GPU lacks support for miners to develop software for, however you can mine on the Mali450 GPU found on the OrangePi and Tinkerboard. At this point all Mali GPU miners are modified from existing software with no official support. I just ordered my first OrangePi so I can't speak from personal experience but I've been told you can get up to 50 hashes from the gpu.... add the 25 from the ARM processor and that's not a bad result from $17-$35 hardware that consumes about 3 watts.
But how those 75 hashes compare to 30 MEGAhashes from RX570?
Monero, therefore more like 500ish hash on the RX as I recall (definitely under 1000).
You think so? So where those 75H/s come from, since the result for the 8xARM Cortex-A53 on a playstore monero mining app @ 7 threads is ~6-8 H/s
First off, I said the 75 came from the CPU and GPU working together, the CPU on it's own makes 24-26. That's 4 cores, not 8, at 6-8 hashes per core... would you like a calculator? Now since none of your opinions have anything to do with the OPs question, why don't you go pat yourself on the back for copying the same GPU rig every other miner on the planet has built and let the rest of us work. Thanks.