AMD Radeon RX 550 4GB GDDR 5 128 Bit 14nm Gaming Graphics Card New Unused. Specifications and Features 1 - 4GB VRAM GDDR 5 2 - Input interface type Pci express 3.0*16 (effective Pci - e x 8) 3 - Memory interface 128 bit 4 - Ports HTMI, DisplayPort, DVI - 5 - Condition New Unused 6 - Power consumption 50 watts - 65 watts maximum 7 - Does not require an external power port that works directly from the