Is it possible to Xfire a HD7870 with a HD7970?

[Jackofspades0]

If it is, how many watts would you need to keep these two cards satisfied? I own a HD7870 and I would love to be able to upgrade to the HD7970 without replacing my other card.

Thanks!

 

[Novuake]

Its POSSIBLE... But not a good idea... You would just be wasting money on the HD7970 as it would underclock to the HD7870...

 

[manofchalk]

Nope, cant Crossfire those cards.
The recommended PSU wattage for dual card systems is 750W.

 

[Jackofspades0]

OK thanks, I guess I'll just buy another HD7870 or a HD7850 if I want to add another card.

 

[djangoringo]

It's possible, but only with the models like the 7870 Tahiti LE(which probably what you don't have).

http://www.techpowerup.com/176817/Radeon-HD-7870-quot-Tahiti-LE-quot-Can-Pair-with-HD-7900-Series-in-CrossFireX.html

 

[Jackofspades0]

Best answer selected by Jackofspades0.