Preview Of Ubuntu 12.04 LTS vs. Ubuntu 12.10 Performance
Starting with Dbench there is a small improvement in the disk performance out of this laptop with an Intel SSD when moving to Ubuntu 12.10, which is still on the EXT4 file-system.
The Nexuiz frame-rate dropped sharply, looking like a regression but Intel says it might also be due to anti-aliasing changes in the new Mesa 9.0 release used by Ubuntu 12.10.
The OpenArena performance was the same for the Intel Sandy Bridge system between Mesa 8.0 and Mesa 9.0.