MSI R4830-T2D1G Radeon HD 4830 1 GB 256-Bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail Radeon HD4830 Core Clock 585 Mhz Memory Clock 1800 Mhz Memory Type DD3 32*32-1 Memory Size 1 GB Memory Bus - 256 bit TV- Out 2 DVI Port Form Factor ATX