Does Crossfire with different cards work?

Toggle sidebar Toggle sidebar
G

genrege

Honorable
Oct 20, 2012
8
0
10,510
I have a Sapphire 7970 Ghz card, and was wondering if I could add say a 7950 card to this to boost performance without breaking the bank? I guess crossfire will make the two cards together work at the lower of the two clock speeds, but overall boost performance as there are more shaders/cores? And also could I over clock the slower card to make up to Ghz spec?

Will they both look like a single card to the OS or will it see 2 GPUs?
 
Sort by date Sort by votes
deadmaufive

deadmaufive

Distinguished
Feb 5, 2013
405
1
18,960
Yes you can. CF works with anycard that starts with the same first 2 numbers, not including the new 2xx series. I believe, but not positive off the top of my head, the 2xx cards can cf with the 79xx series cards.

so in conclusion, yes a 7970 can cf with a 7950, but not with a 78xx or 77xx.

It will take the lower of the two clockspeeds and the lower of the 2 VRAMs but yes, other than that it will still boost your performance a bit.
 
Upvote 0 Downvote
N

nerdslayer

Reputable
Jul 30, 2015
56
0
4,630
 
Upvote 0 Downvote
N

nerdslayer

Reputable
Jul 30, 2015
56
0
4,630

Would it work then if I crossfired an r7 360 with an r9 380

 
Upvote 0 Downvote
deadmaufive

deadmaufive

Distinguished
Feb 5, 2013
405
1
18,960


In theory, it would work, though you would be wasting an r9 380. It takes the lowest speeds and RAM usage of the 2 cards. Basically, you'd be as if you were running 2 r7 360s, give or take. I haven't seen anywhere with stats on if a single 380 would be better or if 2 360s would be better performance, but either way, if I were you, I'd run the single r9 380 and not mess with CFX until you have a better card than the r7 360.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom