HIS R9 280X iPower IceQ X² Turbo Boost Clock. Condition is Used like new. Model Name HIS R9 280X iPower IceQ X² Turbo Boost Clock 3GB GDDR5 PCI-E DLDVI-I/HDMI/2xMini DP Chipset AMD Radeon R9 280X Memory Size 3072 MB Memory Type GDDR5 Core Clock 1000 MHz (Boost Clock 1050 MHz) Memory Clock 6000 Gbps Memory Interface 384 bit Power Supply Requirement 750Watt (or greater) power supply with two 150W 8-pin PCIe power connectors recommended 1000Watt (or greater) power supply with four 150W 8-pin PCIe power connectors Max. Resolution (per Display) DisplayPort 1.2 - 4096x2160 HDMI - 4096x2160 Dual-link DVI with HDCP - 2560x1600 Interface PCI Express 3.0 x16 Outputs DLDVI-I + HDMI + 2xMini DP System Requirements PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard 750W (or greater) power supply with two 150W 8-pin PCI Express power connectors recommended 1000W (or greater) power supply with four 150W 8-pin PCI Express power connectors recommended for AMD CrossFire™ technology in dual mode. The operation of AMD CrossFire™ technology in dual mode requires a second AMD Radeon™ R9 280X graphics card and an AMD CrossFire™ Ready motherboard. Minimum 4GB of system memory 8GB (or more) system memory recommended for AMD CrossFire™ technology Installation software requires CD-ROM drive DVD playback requires DVD drive Blu-ray™ playback requires Blu-ray drive Windows® 7, Windows 8 or Windows 8.1 operating system. 64-bit operating system highly recommended. For more information refer to {url removed}