Go Back   Hardware Canucks > HARDWARE > Video Cards

    
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old September 18, 2011, 06:16 PM
Rookie
 
Join Date: May 2010
Posts: 38

My System Specs

Default Slower performance in crossfire mode

Specs in the thing-thing at the top right.

When I play games, performance is actually reduced. It was slightly improved when I overclocked to ~3.7ghz but a single GPU is by-far superior in performance still.

Games I play:

ARMA II
Many source games. In TF2, crossfire mode actually causes a stutter which makes the game almost unplayable. CSS is fine.
The Stalker series cause a stutter too (Doesn't surprise me though).

CF only seems to improve performance in Shogun 2 and Empire Total War.

Perhaps my processor isn't clocked enough and it is bottlenecking my GPU's?

Or perhaps the games I mentioned don't really use multi-GPU setups? I have tried stuff like testing one card at once and different drivers and profiles. Nothing too noticeable in performance, though.

Thanks in advance
__________________
God Save the Poutine
Reply With Quote
  #2 (permalink)  
Old September 18, 2011, 06:46 PM
Hall Of Fame
 
Join Date: Feb 2011
Location: Ontario
Posts: 1,382

My System Specs

Default

It is micro-stutters caused by crossfire. You can't really fix this, you should be able to play most of those games on high without crossfire anyways. The CF drivers for the 58xx series are not great, but even high 6950 and 6970 (as well as their nvidia counterparts) have this issue.
Reply With Quote
  #3 (permalink)  
Old September 19, 2011, 05:20 AM
yamawho's Avatar
Allstar
 
Join Date: Jul 2008
Location: Rosemere, Qc, Canada
Posts: 860
Default

I tried crossfire last year with 2 HD4870's ... what a waste of time.
Lower FPS than with a single card.

Ended up getting a GTX570 in the end.
Reply With Quote
  #4 (permalink)  
Old September 19, 2011, 08:20 AM
Rookie
 
Join Date: May 2010
Posts: 38

My System Specs

Default

Quote:
Originally Posted by yamawho View Post
I tried crossfire last year with 2 HD4870's ... what a waste of time.
Lower FPS than with a single card.

Ended up getting a GTX570 in the end.
And money

I could of invested in a better, single card. But now I'm stuck with this extra one that doesn't serve me any good.
__________________
God Save the Poutine
Reply With Quote
  #5 (permalink)  
Old September 19, 2011, 08:55 AM
JD's Avatar
JD JD is offline
Moderator
F@H
 
Join Date: Jul 2007
Location: Toronto, ON
Posts: 6,896

My System Specs

Default

I experienced similar issues with Crossfire too (dual HD5870s). I think it's mainly to do with drivers and the lack of support for games. Not too many games are sponsored by AMD/ATI so I think that's why Crossfire never quite works right as most games are geared towards NVIDIA. I know it shouldn't matter, but it seems to.

Ended up buying a GTX580 a few months later and haven't looked back. It was an expensive "mistake" but it seems single-card is still the way to go these days.
Reply With Quote
Reply


Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Should I buy the ATI 5850 or 2x 4850s in Crossfire mode? lsquare Video Cards 20 February 2, 2010 11:11 AM
Slower Performance after 2nd Card added?!? ipaine Video Cards 10 December 11, 2009 04:45 PM
Need help looking for a board that will run Crossfire at dual 16x mode Gameplaywarrior CPU's and Motherboards 4 July 9, 2009 01:44 PM