You can see some benchmarks here comparing performance between 12.04 and 12.10. The majority of tests show no difference in terms of computational performance.

As with all benchmarks, there are many caveats:

• It only tests one hardware combination. Your results may vary.


• It is based on a pre-release version of 12.10 (although it is unlikely much has changed).


• "Bare metal" computational performance is not the same as user interface responsiveness. As observed above, anecdotal evidence claims that the performance of the Unity interface has regressed, but I cannot find any actual quantification of this.