Developed specially for small form factor PC systems, this model features a shorter PCB, measuring only 171mm long, & an efficient heatpipe cooler with a single fan. Sharing the same GCN core as the Dual-X models, the ITX Compact is no slouch with core clocks of 928 M Hz & memory clocks of 1375 M Hz (5.5GB/s effective). Specifications GPU 928 MHz Core Clock 28 nm Chip 1792 x Stream Processors Video Memory 2048 MB Size 256 -bit GDDR5 5500 MHz Effective Display Support 4 x Maximum Display Monitor (s) support Outputs 1 x HDMI (with 3D) 2 x Mini-Display Port 1 x Dual-Link DVI-I Dimension 171 (L)X110 (W)X35 (H) mm Size. 2 x slot Software Driver CD SAPPHIRE Tri XX Utility System Requirements PCI Express based PC is required with one X16 lane graphics slot available on the motherboard 4096MBMinimum of system memory Installation software requires CD-ROM drive DVD playback requires DVD drive Blu-ray™ / HD DVD playback requires Blu-ray / HD DVD drive 500 Watt Power Supply is required 850 Watt Power Supply is recommended for Cross Fire X™ System 1X150 Watt 8-pin PCI Express power connector is required 2X150 Watt 8-pin PCI Express power connector is required for Cross Fire X™ system