Hi! Would you please tell me if I can crossfire a brand new 7770 with my old 4890? Thx in advance.

http://forums.amd.com/game/messageview.cfm?catid=444&threadid=160923&enterthread=y

Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit *Gateway HD2401 24" 2ms 1920x1200  ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit  ***Acer 5750 laptop

* A clear conscience is usually a sign of bad memory *

Thx for the reply but on this chart it shows graphic cards 5750 up to 7970. Mine is kinda older (4890). But most likely it won't be compatible since 7770 is only compatible with 7770 and 7750. Any advice on which is the best graphic card atm, price/quality, to buy up to 150 pounds?

Sell the 4890 to somebody...it is a legacy/non-supported DX10 card. Match the 7770 with what it is able to crossfire to...and try to get the same brand/model. The question I have is,  why would you want to crossfire and have all the problems that causes? All of this is moot if you don't have a OS , PS , and processor that can handle two cards.

Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit *Gateway HD2401 24" 2ms 1920x1200  ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit  ***Acer 5750 laptop

* A clear conscience is usually a sign of bad memory *