YES! A little extra glory for my old G4 400 PCI graphics with a Radeon 7000! By default, Quartz Extreme is NOT enabled for any computers with PCI graphics. HOWEVER, check out the following forum for a discussion on how to override this! http://arstechnica.infopop.net/OpenTopic/page?a=tpc&s=50009562&f=8300945231&m=7390915135 While the results weren't staggering, enabling QE actually did boost performance! Keep in mind that this will only work for PCI RADEONS. It will not work for original Rage cards. This is a beautiful thing.