Crossfire compatability

[Ricardo56]

So I'm not quite sure about this yet but I'm thinking of buying a PC that has an r9 390 on an asus z170-p mobo and a xfx ts 550W 80plus bronze (I don't think the rest of the specs are important but I will need to upgrade the PSU) and because a friend of mine is giving me an r9 280x since his pc broke, I was wondering if they'll work on crossfire (I heard AMD is pretty flexible when it comes to that) and if so, what PSU should I buy afterwards?

 

Thank you

[Billy_Mays]

Pretty sure they can't crossfire but if he wants he could reuse it

[Electronics Wizardy]

They won't work in cross fire, must have the same chip.

 

Really crossfire isn't worth it, just save up for a 1070.

[porina]

I can't answer the crossfire part, but the 280X is rated at 250W and mine used to take more than that under worst case situations when overclocked. If you have any thoughts of running two similar cards like that, I'd look at a 750W PSU or higher. Might be simpler just to run what you have with a single card and not upgrade PSU unless it is that bad...

[Ricardo56]

1 minute ago, Electronics Wizardy said:

They won't work in cross fire, must have the same chip.

 

Really crossfire isn't worth it, just save up for a 1070.

I'm not actually buying the 280x, it's free. Maybe I could sell it but I honestly don't know yet Also, I'm just playing csgo and rocket league so pretty sure the 1070 would be overkill when the 1060 gets the work done

[DXMember]

280X and 390 won't work in crossfire and you will not be able to play games with crossfire profile

however you can still have them both in the system and use for compute, e.g. mining or play Ashes of the Singularity using both cards

[Ricardo56]

1 hour ago, DXMember said:

280X and 390 won't work in crossfire and you will not be able to play games with crossfire profile

however you can still have them both in the system and use for compute, e.g. mining or play Ashes of the Singularity using both cards

Not too interested in mining (it does sound kinda nice but what if it ruins something, i dunno). Maybe I'll keep it just in case the 390 stops working or resell it (kind of an ass move towards my friend tho) to get a nice monitor. Thank you for the information though