Two different AMD Radeon GPU's in crossfire or non crossfire configuration

I have recently purchased 2 AMD Radeon RX Graphics card.
One is a Gigabyte 560RX with 4GB DDR5 memory.
Another is an ASUS 550RX with 2GB DDR5 memory.

Can I use both these cards simultaneously on a single motherboard at two PCI-E lanes/channel respectively each?

Do I need a crossfire adapter/cable ?

Or do I need nothing?

Or IS THIS SETUP NOT POSSIBLE????

@whitestar_999 ; @meetdilip ; @topgear ; @sling-shot ; @anupam_pb ; @bssunilreddy ; @Nerevarine ; @SaiyanGoku and others???
Any views,suggestions,advice,comments?

Please acknowledge.

W

No,this setup is not possible.Why would you buy 2 graphics card anyway,I hope you did not buy just to test some theory?

whitestar_999 said:
No,this setup is not possible.Why would you buy 2 graphics card anyway,I hope you did not buy just to test some theory?

Actually I have 2 Desktop-PC setup...
One is running under the Radeon 560RX.

But the other one has gone Kaput. I mean mobo has been damaged.
So, I wanted to use the Radeon 550RX along with Radeon 560RX GPU setup.

hybrid crossfirex was possible on older radeon cards, not anymore..

Nerevarine said:
hybrid crossfirex was possible on older radeon cards, not anymore..

That means crossfire not even possible through PCI-e lanes??

kg11sgbg said:
That means crossfire not even possible through PCI-e lanes??

There is no point in buying low end GPUs for crossfire/sli anymore. Single GPUs are powerful enough unless you want 4k120 FPS high settings.

SaiyanGoku said:
There is no point in buying low end GPUs for crossfire/sli anymore. Single GPUs are powerful enough unless you want 4k120 FPS high settings.

back in the days, it was somewhat acceptable to do hybrid crossfirex with a 6670 and a AMD APU.. not anymore..

okay got the point...

kg11sgbg said:
I have recently purchased 2 AMD Radeon RX Graphics card.
One is a Gigabyte 560RX with 4GB DDR5 memory.
Another is an ASUS 550RX with 2GB DDR5 memory.

Can I use both these cards simultaneously on a single motherboard at two PCI-E lanes/channel respectively each?

Do I need a crossfire adapter/cable ?

Or do I need nothing?

Or IS THIS SETUP NOT POSSIBLE????

@whitestar_999 ; @meetdilip ; @topgear ; @sling-shot ; @anupam_pb ; @bssunilreddy ; @Nerevarine ; @SaiyanGoku and others???
Any views,suggestions,advice,comments?

Please acknowledge.

No, at least not possible easily as Crossfire requires the same GPU models to work together. Not sure if RX560 even supports crossfire. Crossfire & SLI don't have a bright future for gamers due to complexity.

anupam_pb said:
No, at least not possible easily as Crossfire requires the same GPU models to work together. Not sure if RX560 even supports crossfire. Crossfire & SLI don't have a bright future for gamers due to complexity.

RX560 has CF support.

Already purchaesd and using Radeon 550 from Asus,for my other desktop.