I've got a dual opteron 242 setup, and gimp works beautifully. Note, however, that i'm running gentoo, so Gimp has been compiled from scratch with a 64-bit gcc.
As for improvements over 32-bit, I can't really say, my best comparison is comparing a 2x1.6gHz 64bit machine to a 1x0.9gHz 32 bit machine, so no real basis for comparison. Also, I don't know if any of the filters in GIMP have been optimized with hand-written assembly, or if they are straight c/c++/whatever. If they're assembly, they may actually run slower as-is on amd64 than x86 (this has been the case with several media (de|en)coders), but that will change when someone writes an amd64 assembly version. _______________________________________________ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user