PowerColor Hellhound Radeon RX 7900 XT RX7900XT 20G-L/OC/WHITE graphics card

20GB GDDR6 320-Bit Frame Buffer

The PowerColor Hellhound Radeon RX 7900 XT equips 20GB of GDDR6 memory across a 320-bit interface. It targets enthusiasts and creators who need high VRAM capacity for 4K gaming and compute workloads. The AMD RDNA 3 GPU provides 5376 stream processors. A factory overclock lifts the boost clock to 2500 MHz while the game clock sits at 2130 MHz.

Sustained Load Thermal Behaviour

The card draws a typical board power of 300W and requires a 750W power supply fed by two 8-pin connectors. A triple-fan cooler moves heat across a three-slot ATX form factor that measures 320 mm in length. Under prolonged load the cooler maintains the elevated boost frequency without throttling. Power delivery is rated for continuous operation at the specified clocks.

PCI Express 4.0 Display Output Limits

The PCI Express 4.0 interface connects the GPU to the platform at the standard lane rate. Display outputs comprise one HDMI 2.1 port and three DisplayPort 2.1 connectors driving up to four monitors at a maximum resolution of 7680 x 4320. The ports support the full link bandwidth defined by the DisplayPort 2.1 and HDMI 2.1 specifications.