Crossfire of normal RX580 and mining RX570?

  1. ch3mn3y's Avatar
    Posts : 52
    Win10 Pro PL-PL (x64)

    Crossfire of normal RX580 and mining RX570?

    I'm thinking about doing a CF. Now I have RX580 Nitro+ SE, but I'm looking for a 2nd card. Was thinking about 2nd Nitro+ SE or Nitro+, but they cost a little (have enough, but if I can spend more...) - 500 (Nitro) or 550 (SE) PLN for the cheapest ones (used ofc) - it is 120/135$.

    Than I thought about RX480 with RX580 BIOS, but there I would need one with 100% working BIOS and Strix OC would be best coz of (I believe from what I read) best cooling capabilities of all RX480 cards. Found one, but seller already bricked two cards and is not willing to play with more.... (there I would pay ~400 PLN = ~100$).

    Than I found, here on reddit, info that RX480/580 + RX470/570 would be practically same as two RX480/580. That gave me more field to look for cards. And I found "holy grail" - Nitro 8GB for 280 PLN (70$). Only problem it is mining one. Do You know id it will work with normal RX580? Present one would act as video out card, so I don't mind that it doesn't have any ports out. But... WILL IT WORK? AS Mining RX570 has clocks at 1420/2250 and Sapphire RX580 has 1430/2000, than there won't be a lot of difference (and RX570 will be 2nd card not the main one).

    PS. Right now I would like to thank for all the "CF is dead", "sell it and buy newer GPU", etc. comments. I don't have time, money to do that, or don't mind, or give a f. Thanks, danke, merci, dziękować!
      My Computers

  2. Gurn Blanston's Avatar
    Posts : 324
    Win10 Pro x64

    If I am not mistaken, Crossfire only works if the two video cards use identical chipsets. For example, RX 580 and RX 580. That is what is in my system and it gives quite a performance boost.

    Using a 580 and a 480 or 570 in the same machine might give you unpredictable results, if it works properly at all. If you can afford a new 580 and want to crossfire, then I say go for it, but I wouldn't buy a 570 in the hope that it might work.

    Just me. YMMV
      My Computer

  3. CountMike's Avatar
    Posts : 18,373
    W10+Developer Insider + Linux

    Even if it worked there's precious few games that can take advantage of dual GPUs and you might even end up with less overall performance with twice power usage.
      My Computers


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