ASUS AMD Radeon DUAL-RX6400-4G RX 6400 4GB GDDR6, 2321 MHz Boost Clock/2039 MHz Game Clock PCI Express 4.0. 1x HDMI,1xDP 1.4a

ASUS Dual Radeon™ RX 6400 4GB GDDR6 with two powerful Axial-tech fans and a 2-slot design for broad compatibility Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure. A 2-slot Design maximizes compatibility and cooling efficiency for superior performance in small chassis. Dual ball fan bearings can last up to twice as long as sleeve bearing designs. Auto-Extreme Technology uses automation to enhance reliability. A protective backplate prevents PCB flex and trace damage. Graphic Engine Radeon RX 6400 Bus Standard PCI Express 4.0 OpenGL OpenGL®4.6 Video Memory 4GB GDDR6 Engine Clock Gaming mode: up to 2321 MHz(Boost Clock)/ up to 2039 MHz(Game Clock)​ Stream Processors 768 Memory Speed 16 Gbps Memory Interface 64-bit Resolution Digital Max Resolution 7680 x 4320 Interface 'Yes x 1 (Native HDMI 2.1) Yes x 1 (Native DisplayPort 1.4a) HDCP Support Yes (2.3)' Maximum Display Support 2 NVlink/ Crossfire Support Yes Accessories 1 x Speedsetup Manual Dimensions '201 x 124 x 40.5 mm 7.91 x 4.88 x 1.59 inches'