XFX Radeon HD 5770 1 GB GDDR5/PCI-Express 2.0/CrossFireX Ready/Dual DVI/Mini Display Port Video Card HD577XZMF3 Chipset: ATI Radeon GPU Series: ATI Radeon HD 5000 GPU/VPU: RADEON HD 5770 Video Memory: 1GB Memory Type: DDR5 Memory Interface: 128-bit Stream Processors: 800 Core Clock: 850 MHz Memory Clock: 4800 MHz Interface Type: PCI Express 2.0 Interface Speed: x16 Connector(s): Dual DVI Mini Display Port Multiple Monitors Support: Yes Max. Monitors Supported: 3 Multi-GPU Support: CrossFire-X Overclocked: No APIs: DirectX 11 1080p Support: Yes Video Output: DVI Display Port