AMD Radeon HD 7770 CrossFireX lacking performance.

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OllieNeedsTechSupport

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Jan 1, 2014
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Hello guys, I recently bought a second AMD Radeon HD 7770 for CrossFire. I thought the other 7770 was too slow. When I set it up and wanted to play Battlefield 4, the performance was even worse and the graphics were a bit off. They kept flickering and flashing, I know both of the GPU's work, because I've used both. The newer one has bit less MHz compared to the older card, does it matter which one of them I use and why is my performance so slow?

My rig:

OS: Windows 7 SP1
HDD:2TB HDD with 7200RPM
GPU: AMD Radeon HD 7770 (Dual.)
CPU: AMD Phenom II X4 965 Black Edition (Not overclocked.)
PSU: Corsair GS700.
RAM: 8GB DDR3 1333MHz
Motherboard: ASRock 990FX Extreme3 which compatible with both SLI and CrossFireX

Thanks for your time!
 
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cklaubur

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Oct 4, 2006
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What specific cards do you have installed?

I have a pair of MSI R7770-2PMD1GD5/OC Radeon HD 7770's in my desktop rig (in my sig), and while I haven't tried Battlefield 4 on them, I'll try to help you figure out the problem. What settings are you running at?

Casey
 
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cklaubur

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Oct 4, 2006
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Both cards have the same specs from what I can find, just the FX-777A-ZDB4 has a different cooler on it.

What Catalyst version are you using?

From what I've been seeing so far, Battlefield 4 has some problems with Crossfire setups. There have been a couple fixes, both from AMD and EA, attempting to fix it.

Casey
 
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