During yet another press event, Apple introduced new PowerMacs and PowerBooks as well as a new photo application called Aperture. The fastest new PowerMac holds two dual-core G5 processors at 2.5Ghz each, while the two lower-end models have one dual-core G5 at 2.0 or 2.3Ghz. The dual-core G5s have 1MB L2 cache per core. The 15″ and 17″ PowerBooks now have 1440×960 and 1680×1050 resolutions. Aperture is post-production photo software built for professional photographers.