Fix For Stuttering In Unreal Engine 2 Games When Vsync+Crossfire Are Enabled

Posted: February 12th, 2012 | Author: | Filed under: Crossfire Scaling, Hardware, Tips/Tutorials
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I discovered this some months ago, when vsync and crossfire are enabled in old UE2 games, the combination will cause strange framerates and massive stuttering. So you should disable CF by disabling Catalyst AI, rename the game to ForceSingleGPU.exe, or make a profile in RadeonPro or the profiles feature in CCC (starting from Catalyst 12.1).

This seems to affect the standard UE2 games, not the heavily modified ones like Bioshock or Duke Nukem Forever. It does not matter if you’re enabling vsync with D3DOverrider, an in-game option, or the engine .ini file, it all results in the same stutter. I’m noticing it in Unreal Tournament 2004 for example.

Last Modified: April 27th, 2012

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