Apple iMac G5 1.8-GHz PowerPC G5 processor, 512MB DDR SDRAM, 160GB SATA hard drive (7,200-rpm), nVidia GeForce FX 5200 Ultra graphics, 20-inch widescreen LCD, DVD-R optical drive, three USB 2.0 ports, two FireWire ports, integrated speakers, AirPort Extreme (802.