Radeon HD 6870 - Terrible Performance/Stuttering in all games

I noticed while playing Far Cry 3 that my performance was pretty terrible. I turned every setting to it's lowest and still experience terrible stuttering. Today, I tried Just Cause 2, which used to work great for me but I also get terrible stuttering with it. I'm not sure if it's because of my new CPU/Motherboard, or if my video card is dying or something.

Also, could it be the fact that I have three monitors connected (One via HDMI, one via active display port and one via DVI - A TV + 2 monitors)

System Specs:

ATI Radeon HD 6870 - Overclocked to 945 MHz GPU clock, 1160 MHz memory clock
Gigabyte Z77MX-D3H Motherboard
Intel i5-3570 CPU @ 3.40 GHz
24 GB of DDR3 Ram (SIW reports the speed as "667 MHz (667 x 2 = 1333)")
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  1. Also, I've removed the drivers and cleaned them up with Driver Sweeper, and then reinstalled the latest beta drivers. No difference.
  2. I have the same card and pretty much the same system with the exact same problem.

    I get a good FPS but the stuttering effect makes my eyes go funny and gives me a headache trying to play FPS games.

    Did you ever manage to fix this problem?
  3. I did indeed. While looking at speedfan to see my GPU temps I noticed my CPU temps were very high. It turns out my CPU fan had fallen off (Fail), and when your CPU hits high temps it gets throttled a LOT. Probably not the same issue you're having, but check your CPU temps just in case :)
  4. Thanks for getting back to me. My temps are not high :S

    Back to the drawing board...
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