Problem with 2x MSI R9 290X lightning - crossfire performance worse than single card

Status
Not open for further replies.

KrzysiekX10

Honorable
Apr 6, 2014
89
0
10,660
I am having a problem with my two MSI R9 290X Lightning graphics cards. In the games The Division and Steep I noticed that I am getting less FPS when using CrossFire than when I only use a single card. In The Division, if I use a single card, I get smooth 60 FPS on max details, whereas with CrossFire on I am getting 40 - 50 FPS and overall choppiness regardless of the graphics settings. With Steep it is similar - smooth 60 FPS on high details when using single card but about 40 - 50 FPS and choppiness with CrossFire. The problem has definitely been most prominent with these two games, although I am not sure about other games. What should I do to fix this? Could the second graphics card be defective?
Both cards are at stock clocks.

Here are my other PC specs:
Motherboard: ASUS Maximus VII Formula (the graphics cards are in the two topmost slots)
CPU: Intel Core i7-4790K at stock clock
PSU: Corsair RM1000
System: Windows 10 Pro 64bit
The CPU and both graphics cards are liquid-cooled. Since I have a rigid crossfire waterblock, testing the second card on its own would be extremely time-consuming.

EDIT: Also, with CrossFire on, I get flickering light in many different games, for example Overwatch, TrackMania2 and TrackMania: Turbo. I have the latest GPU drivers installed.
 

Th3pwn3r

Distinguished
Aug 29, 2011
257
0
18,860
Welcome to multiple video cards. There's a reason lots of people don't like running more than one card, this is just one of several reasons. Mine reasons were red screens, messed up textures, crashes, etc...
 

KrzysiekX10

Honorable
Apr 6, 2014
89
0
10,660


I have checked internet benchmarks for both games and according to all of them, in both games CrossFire should give higher FPS than a single card.
 
Status
Not open for further replies.