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crossfire degrading performance compared to single gpu

Tags:
  • Crossfire
  • XFX
  • GPUs
  • Build
  • Graphics
  • Performance
September 28, 2014 5:33:55 AM

heres my build
XFX Double D R9 270 925MHz DDR5 2GB crossfire (2)
AMD FX 6300 6 core Black Edition water cooled
ASUS M5A99FX PRO R2.0 990FX
Corsair HX 750x PSU
8GB 2133 Corsair Dominator Platinum

on bf4 i average 50-70 fps with 1 270 gpu and on crossfire i average 30-50 fps
while on black ops to no performance difference at all. wat could b the problem? im running ccc 14.7 aswell as i tried using older 14.6 and 14.4 n nothing

PS. im running windows 7 un updated since december 2013

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