Dell K629C ATI Radeon HD 3650 256MB GDDR3 128Bit DP/HDMI/DVI PCIe x16 Video Card Graphic Processor: ATI Radeon HD 3650 Dell Part Number: K629C, 0K629C, CN-0K629C Memory: 256 MB GDDR3 SDRAM Memory Interface: 128 Bit Compatible Slots: PCI express x16