Sapphire 5870 Eyefinty 6 Crossfirex with Sapphire 4850 x2

[menojohnson]

HI i wanted to know if it was possible to crossfire these two cards together the Sapphire 5870 Eyefinty 6 and the Sapphire 4850 x2 both are 2gb. and what card should be the primary Video card?? Im kinda new to this.
and also can someone recommend a good Mobo that supports AM2,AM2+ and AM3 with crossfire support thats decently priced?. Like i said im new and sort of know a lil somthing when it comes to buliding a gameing computer. please help thanks ~Tony~

 

[megamanx00]

No. You cannot mix a 6000 series card with a 5000 series card and expect to CF them. You need another 5870 to crossfire it.

 

[menojohnson]

i thought you can mix gpu's from ati in cf

in sli nvidia you cant? or im i mixing them up?
im a lil confused with this as you can see so please bare with me.