Compatibility with hd 4xxx and hd 5xxx

[JBM12G]

Hi, I have two HD 4650's (I know their not good cards, the systems primary purpose is not gaming) and would like to add a 5750 or 5770 (not sure yet). I know I will not be able to crossfire the cards. The other two cards will be used to run my secondary monitors. I am wondering if their will be driver problems with mixing dx11 and dx10 cards.

P.S. My first post so tell me if I've done something wrong

[Helix]

All I can say is eew. It'll work, but would probably be a bit annoying and screwy, and you'd be better off with a single 5000 series card (5770 or higher) to drive all your monitors in Eyefinity. That also leaves the door open to crossfire later, should you desire more performance.

[Maplicito]

I run my main display of a 5870, and my TV off a 3650, so I see no reason why what you propose wouldn't work.

[Zero82z]

No, there will be no issues mixing those cards.