Mesa 9.2 Can Boost Intel Haswell Graphics 30~40% On Linux
With the experimental ETXreaL game, Mesa 9.2 is only about 4% faster than Mesa 9.1 stable for the HD 4600 graphics on the i7-4770K processor.
Nexuiz is more serious with its Mesa 9.2 performance improvements with a jump in frame-rate of 33% with this six-month Mesa update.
OpenArena 0.8.8 saw a slight increase in performance for Intel Haswell through the i965 DRI driver on Mesa 9.2.
The ioquake3 World of Padman performance is up by 40% on Mesa 9.2 over the 9.1 stable release from earlier in the calendar year.