Hi there everyone. Posting here is my last resort because I'm about to pull my hair out. My internet history is literally only Google searches at this point.
A few days ago I got a few months old Gigabyte R9 270x 2GB via Ebay to accompany my current retail bought one in a Crossfire setup. I had the specs to run the setup, PSU size, all that, so I figured I'd get the performance I've been needing without having to wait several months to scrounge the money for a really high end card.
I'm very well aware and have been aware of the shortcomings of a Crossfire solution. I know all of the possible issues and such, but AMD has been devoting themselves to fixing them with decent success for a while now so I figured what the hay. I'll go for it.
I plugged in the card (several times up until this point, even switching the master and slave) and connected the bridge. PC started up, I started up CCC, enabled Crossfire no problem. I started up Radeon Pro (no custom profiles or anything, just the OSD to monitor the cards), it detected both cards fine and said Crossfire was good to go. So I started up a few games I play often and went to see how they run. Results were horrendous. When things weren't stuttering to hell while the game returned a playable (but still too low for what the setup should be able to do) framerate, the FPS would fluctuate ridiculously or I'd get approximately the same performance as if Xfire was off. There were points where no matter what I changed the in game settings to the framerate would stay in a range (usually 30 to 57 FPS, never breaking sixty) fluctuating crazily. Neither card ever reaches more than 40% usage, which is awful, and also fluctuates crazily.
Tested games:
Battlefield 4 (experienced all of the issues above)
TES V: Skyrim (Crossfire made nearly no difference)
Fallout 3 (hated Crossfire, ran with heavy stuttering)
Fallout NV (same effect as Skyrim)
ArmA 3 (seemed to make some kind of small improvement, likely placebo)
ArmA 2 (somewhat lower performance)
Planetside 2 (didn't even start, got a BSOD)
My specs:
Asus M5A97 LE R2.0 (aware of the 4x PCI-E slot, I doubt it would make gaming this bad)
AMD FX-6300 @ 3.9 Ghz (will OC further once new heatsink shows up)
Corsair Vengeance 2x4GB @ 1866 Mhz
EVGA SuperNOVA 750W Gold
Gigabyte R9 270X GB in Crossfire (of course)
WD Blue 1TB 7200 RPM
A few days ago I got a few months old Gigabyte R9 270x 2GB via Ebay to accompany my current retail bought one in a Crossfire setup. I had the specs to run the setup, PSU size, all that, so I figured I'd get the performance I've been needing without having to wait several months to scrounge the money for a really high end card.
I'm very well aware and have been aware of the shortcomings of a Crossfire solution. I know all of the possible issues and such, but AMD has been devoting themselves to fixing them with decent success for a while now so I figured what the hay. I'll go for it.
I plugged in the card (several times up until this point, even switching the master and slave) and connected the bridge. PC started up, I started up CCC, enabled Crossfire no problem. I started up Radeon Pro (no custom profiles or anything, just the OSD to monitor the cards), it detected both cards fine and said Crossfire was good to go. So I started up a few games I play often and went to see how they run. Results were horrendous. When things weren't stuttering to hell while the game returned a playable (but still too low for what the setup should be able to do) framerate, the FPS would fluctuate ridiculously or I'd get approximately the same performance as if Xfire was off. There were points where no matter what I changed the in game settings to the framerate would stay in a range (usually 30 to 57 FPS, never breaking sixty) fluctuating crazily. Neither card ever reaches more than 40% usage, which is awful, and also fluctuates crazily.
Tested games:
Battlefield 4 (experienced all of the issues above)
TES V: Skyrim (Crossfire made nearly no difference)
Fallout 3 (hated Crossfire, ran with heavy stuttering)
Fallout NV (same effect as Skyrim)
ArmA 3 (seemed to make some kind of small improvement, likely placebo)
ArmA 2 (somewhat lower performance)
Planetside 2 (didn't even start, got a BSOD)
My specs:
Asus M5A97 LE R2.0 (aware of the 4x PCI-E slot, I doubt it would make gaming this bad)
AMD FX-6300 @ 3.9 Ghz (will OC further once new heatsink shows up)
Corsair Vengeance 2x4GB @ 1866 Mhz
EVGA SuperNOVA 750W Gold
Gigabyte R9 270X GB in Crossfire (of course)
WD Blue 1TB 7200 RPM