- Clock: GPU / Memory - Boost Clock: Up to 2321 MHz / 16 Gbps - Game Clock: Up to 2039 MHz / 16 Gbps - Base Clock: 1923 MHz / 16 Gbps - Key Specification - 6nm AMD Radeon™ RX 6400 - 4GB GDDR6 - AMD RDNA™ 2 Architecture - DirectX 12 Ultimate - PCI® Express 4.0 Support - 1 x DisplayPort™ 1.4 with DSC / 1 x HDMI™ 2.1 VRR - Key Features - Single Fan Design - 0dB Silent Cooling - Super Alloy Graphics Card - ASRock Tweak 2.0 - 8K Resolution Support - AMD FidelityFX™ Super Resolution - Hardware Raytracing