Specifications - Mfr Part Number: 11229-00-20G- Chipset: AMD Radeon R7 250X- Engine Clock: 950 MHz- Video Memory: 1GB GDDR5- Memory Clock: 4500 MHz Effective- Memory Interface: 128-bit- Bus: PCI-Express 3.0 - Stream Processors: 640- RAMDAC: 400 MHz- Max. Resolution: 4096 x 2160, Support 3x Display Monitors- Connectors: - Input: 6Pin PCI-E Power Connector - Output: DVI-I Dual-Link, HDMI, DisplayPort - Thermal: Fansink- Dimensions (WxLxH): 104.0 x 155.0 x 35.0 mm- This Video Card Supports: - Microsoft Windows 8.1/ 8/ 7/ Vista - AMD Stream Technology - AMD CrossFireX Multi-GPU Technology - AMD HD3D technology - AMD Eyefinity 2.0 Technology - AMD Catalyst Control Center - AMD PowerTune Technology - AMD App Acceleration Technology - AMD PowerPlay with ZeroCore Power Technology - Microsoft DirectX 11 and OpenGL 4.2 - 500W System Power Supply Requirement