you could just try to run for less than an hour to check the hashrate
thank you for the wise advice, how could I not have thought of that before...
As i said around 860 for the 4GB cards, the 8GB cards can utitlize more VRAM, so the hashrate is lightly higher than the 4GB variant. What i saw was around 900h in SRBminer Discord. Keep in mind this cards are over 6 years old. A newer RX5700 is not really better - around 940h @ 62w software readed.
Sure it is always better to use newer cards, but i have 4 rigs with this gpu´s, so it is nice to start this rigs again and take some small last profits
i would never buy a RX570 these days, no matter what price. But i remember a time some months back, where you said it is senseful to mine on RX570 
I mean, the payback period is nearly 3 years for all videocards at the moment, no matter what card.
Sure it is always better to use newer cards, but i have 4 rigs with this gpu´s, so it is nice to start this rigs again and take some small last profits
i would never buy a RX570 these days, no matter what price. But i remember a time some months back, where you said it is senseful to mine on RX570 I mean, the payback period is nearly 3 years for all videocards at the moment, no matter what card.
Thanks for sharing this. I don't currently have an OS installed on the rig, so it would require a lot of work just to find out the hash rate on my own.
I also have some rigs with those cards, I certainly wouldn't buy one like that now. but from what I see, I will wait a while for it to be turned on again.