Sign in with
Sign up | Sign in
Your question
Solved

Crossfire poor performance in many games

Tags:
  • Gaming
  • Intel
  • Drivers
  • AMD
  • Crossfire
  • Graphics
  • Graphics Cards
  • Monitors
Last response: in Graphics & Displays
Share
August 5, 2014 8:27:07 AM

Hey guys,
So I added a second 7970 to my rig recently but I'm having some issues. First, I had some insane screen tearing so I used vsync and frame limited like rivatuner and it got rid of some tearing but it brough insane stutters in games. So I read somewhere that vsync in crossfire cause issues so I bough a 144hz monitor.
I no longer got screen tearing (awesome monitor) but I still got some weird performance that doesnt feel right with my setup. (4770k @ 4.2 with 2X7970 OC). One example would be in BF4 on all ultra I got between 50 to 70 fps on 1920X1080. Checked MSI afterburner and the GPU stats are either not showing up (all stats are at 0) or my GPUs are both at around 60%. I'm using a 1000w PSU,2X4G RAM and 1 bridge between the 2 cards. ULPS was disable trough MSI afterburner. I'm using 14.7 beta drivers.
Any idea what could cause this ? It also seems to be the case in other games like divinity original sin.
Thanks !

More about : crossfire poor performance games

a b 4 Gaming
a b \ Driver
a b À AMD
a c 78 U Graphics card
a b C Monitor
August 5, 2014 8:42:55 AM

It's really just an inherent issue with 7970 crossfire. Although frame pacing has tried to rectify this, that solution was mainly built for the 7990 as we have yet to really see a big improvement in the 7970 crossfire area. As for both GPUs being around 60%, games aren't specifically built for two GPUs in mind thus resulting in an innate bottleneck due to optimization and development time issues.
m
0
l
August 5, 2014 8:53:38 AM

dovah-chan said:
It's really just an inherent issue with 7970 crossfire. Although frame pacing has tried to rectify this, that solution was mainly built for the 7990 as we have yet to really see a big improvement in the 7970 crossfire area. As for both GPUs being around 60%, games aren't specifically built for two GPUs in mind thus resulting in an innate bottleneck due to optimization and development time issues.



But I tough that BF4 was the go-to game for crossfire and that it got awesome support for it ?
m
0
l

Best solution

a b 4 Gaming
a b \ Driver
a b À AMD
a c 78 U Graphics card
a b C Monitor
August 5, 2014 9:00:21 AM

Well you are getting 50-70fps aren't you? If tearing is really a problem then just application force v-sync in CCC if in-game v-sync is not working. I wouldn't expect even an R9 295X2 to break 120fps even on 1080p. Lowering heavy hitting settings like antialiasing (4X MSAA/SMAA+ can usually do a lot of cards in but FXAA is cheap on 8X can do a decent job for me) and volumetric fog can generally give huge boosts with only some slight almost unnoticeable downgrades.
Share
!