HIS 6950 crossfire

[Stuartpetty]

I currently have a HIS 6950 which I haven't unlocked due to having only one bios.

Would I see a great jump in performance by adding a second?
Could I use a 6970 with it ie one 6950 and 6970 in crossfire

I'm using a crosshair v and phenom 1090t

Many thanks

 

[Stuartpetty]

Cool, I'm a little confused over two more things.

1.) my first card has 2gb of memory if I add a second will I have 4gb or still only 2gb?

2.) do I attach one or two crossfire bridges I read somewhere that by having two will have a fraction better performance .

 

[Stuartpetty]

Cool, I'm a little confused over two more things.

1.) my first card has 2gb of memory if I add a second will I have 4gb or still only 2gb?

2.) do I attach one or two crossfire bridges I read somewhere that by having two will have a fraction better performance .

 

[Stuartpetty]

So could I buy a cheaper 1gb 6950 or will that bring down the other card to 1gb

Thanks for all the advice