Crossfire these cards ?

[batty251]

hows a Sapphire 7770Ghz Oc Edition crossfired with a Sapphire 7950 OC Edition V2 sound i have the 7770 but wouldnt depart from it for less then $130 and thats a tough nut to sell at that price so since i cant sell it and thinkin of getting a 7950 because i dnt got enough for a 670 and even thou 660 and 660ti would come out nxt month im sure a 7950 would have more performanc then a 660ti especially if its crossfired with a 7770 so would it work and what would the performance be like

 

[gamerkila57]

no it won't work ?

77xx series with 77xx series

78xx series with 78xx series

79xx series with 79xx series

 

[batty251]

then how dose it work with nivida then ? with u can use any gpu with a newer gpu in sli

 

[batty251]

i mean any nivida 5000 - 600 series

 

[gamerkila57]

nope same thing

GTX 460 with 460

GTX 560 with 560

GTX 670 with 670

 

[killerchickens]

Nivida gpus have to be the same for sli.

gtx 670 with gtx 670 sli etc.

 

[batty251]

so then what can it do in my system if i get a 7950 i know nivida has physix so u can use a lower card to be a dedicated physix card but i know amd dnt have physix so what can it do if its just sittin in my system or is it gunna be a brick that wont do nothing

 

[gamerkila57]

phyx isn't really a selling point for me as not many games use it ?

 

[batty251]

i know physix is outta the question i was using that as a example i know that would be the situation if i used a low end nivida card and a high end nivida card but what about amd whats can u do with a low end amd card and a high end amd card for gaming

 

[gamerkila57]

nothing really ?