AMD

RX6400 4G PCIEx4 HDMI+DP Low Profile AMD RDNA 2 architecture. Integrated with 4GB GDDR6 memory. Supports PCIe 4.0 x 8 interface. Supports 1xHDMI + 1xDisplay Port connectors. Supports DirectX 12, Vulkan, OpenGL 4.6, Open CL 2.2.

RX6600 8G PCIex8 4 mini DP Low Profile AMD RDNA 2 architecture. Integrated with 8GB GDDR6 memory. Supports PCIe 4.0 x 8 interface. Supports 4 x mini Display Port connectors. Supports DirectX 12, Vulkan, OpenGL 4.6, Open CL 2.2.