Connections 1x DVI, 1x HDMI 2.0b, 1x DisplayPort 1.4, Graphics AMD Radeon RX 550 640SP (desktop), 4GB GDDR5, Chip Polaris 11 LE "GCN 4.0", Manufacturing 14nm (TSMC), Chip clock 1019MHz, Boost: 1071MHz, Memory 4GB GDDR5, 1500MHz, 128bit, 96GB / s, Shader units / TMUs / ROPs 640/40/16, TDP 60W (AMD), Cooling 1x axial fan (80mm), Total height dual slot, Dimensions 192x115x39mm, Special features H.265 encode / decode, AMD FreeSync, AMD TrueAudio, AMD Eyefinity, 2-Way-CrossFireX, HDCP 2.2, PCIe 3.0 x16 interface, Computing power 1.37 TFLOPS (FP32), 86 GFLOPS (FP64), DirectX 12 (12_0), OpenGL 4.6, OpenCL 2.0, Volcano 1.1.119, Shader model 6.4, PH-RX550-4G-EVO