XFX Radeon HD 4830 512 MB DDR3 PCI-E 2.0 - ATI Radeon HD 4830 Chipset; Radeon HD 4830 GPU; PCI-E 2.0 Bus Type; 575 MHz GPU Clock; 640 Stream Procession Units; 256-bits Memory Bus; DDR3 Memory Type; 512 MB Memory Size; 1.8 GHz Memory Speed; Fansink Thermal Soluiton; 450 Watt Minimum Power Supply Requirement; 6-pin External Power Requirement; Outputs: 1 TV Out 2 DVI Dual-Link Support 2560 x 1600 Max Supported Resolution (Digital) 2048 x 1536 Max Supported Resolution (Analog); RoHS HDMI Ready (Upgradeable) HDCP Ready ATI CrossFireX Ready ATI Hypermemory ATI Stream Technology ATI PowerPlay Technology Accelerated Physics Processing Accelerated Video Transcoding ATI Avivo HD; Single Slot