Apple iMAC All In One A1224 20" Desktop (Intel Core 2 Duo 2.66Ghz, 320GB Hard Drive, 4096Mb RAM, DVDRW Drive, OS X 10.5.2) All in one 20 inch screen All Intel "Core 2 Duo" processors include two independent processor "cores" on a single silicon chip ATI Radeon HD 2600 PRO graphics processor