https://bugs.freedesktop.org/show_bug.cgi?id=107694
--- Comment #5 from Axel Davy davyaxel0@gmail.com --- Hi,
The youtube video linked in the first comment has very likely been taken with gallium nine (gearsongallium mentionned in the video was a website of a gallium nine tester with a lot of performance comparisons and tests, plus a distro with gallium nine).
Then maybe the 64 bit version of the game was used, since comment 3 mentions t his version works better. I haven't tested the game myself.