EXA in Intel 2.6.1 exposes some significant performance regressions (across all intel graphics chips as I understand). Running in UXA mode addresses this and increases performance further.
When this transparency issue is addressed and we move to intel-2.6.3 also, I feel making UXA default for newer graphics chipsets (or at least test for jaunty alpha 6) will be a profitable move, introducing minimal risk. I've been using UXA on my GM45 platform since 2.6.0 and EXA relatively jerky and slow.
EXA in Intel 2.6.1 exposes some significant performance regressions (across all intel graphics chips as I understand). Running in UXA mode addresses this and increases performance further.
When this transparency issue is addressed and we move to intel-2.6.3 also, I feel making UXA default for newer graphics chipsets (or at least test for jaunty alpha 6) will be a profitable move, introducing minimal risk. I've been using UXA on my GM45 platform since 2.6.0 and EXA relatively jerky and slow.