en la página de GIMP dice:
Cita: What kind of system do I need to run GIMP?
Any system capable of running Gnome 2, KDE 3.2, Windows 2000, Mac OS X and later versions should be able to run GIMP. GIMP's biggest appetite is for memory and how much you will need will depend on the how many images you are working with, their resolution, size, the number of layers you use and so on. As a general rule, more is better, but 128MB should be enough to be getting started with.
Lo cual equivaldría a muuuuuuuuuuuy pocos requerimientos pero bueno sabiendo por ahi los requerimientos que tiene mi netbook + que yo lo quiero usar básicamente para lo que es diseño web, que opinan?
Fuente:
GIMP's site