Ubuntu 13.04 Will Improve Gaming On Open-Source GPU Drivers
Fedora 18 managed to take the cake when it came to running the Reaction Quake 3 benchmark.
When switching back to an ioquake3-powered game, Urban Terror, Ubuntu 13.04 returned to being the leader.
Xonotic with low quality settings at 800 x 600 and 1600 x 900 were in favor of Ubuntu 13.04.