Gigabyte nVidia GeForce RTX 4090 GAMING OC 24G Video card, PCI-E 4.0, GDDR6X, 3 x DP 1.4, 1 x HDMI 2.1 Graphics Processing GeForce RTX® 4090 Core Clock TBD CUDA® Cores 16384 Memory Clock 21 Gbps Memory Size 24 GB Memory Type GDDR6X Memory Bus 384 bit Card Bus PCI-E 4.0 x 16 Digital max resolution 7680x4320 Multi-view 4 Card size L=340 W=150.2 H=75.2 mm PCB Form ATX DirectX 12 Ultimate OpenGL 4.6 Recommended PSU 1000W Power Connectors 16 pin*1 Output DisplayPort 1.4 *3 HDMI 2.1 *1 Accessories 1. Quick guide 2. Warranty registration 3. Anti-sag bracket 4. Anti-sag bracket installation guide 5. One 16-pin to four 8-pin power adaptor