Essentials 2 For Iphoto System Requirements - Mac OS X 10.4.11 or 10.5, 1Ghz or faster G5 or Intel Core processor(s), 1GB of RAM, 1GB of free hard disk space, Current Version - 2.1, OpenGL 1.5 Capable video card with 128MB VRAM at 1024x768 or higher at millions of colors, Internet connection for activation