Hi, I use it on a gigabite rtx 5070 ti and it works fine, for the power supply as far as I know it is compatible for all seasonic full modular

16 AWG

Your AMD 7900xtx most likely has 2 8-pin 2.0 PCI-E power connectors. As this cable was designed for the new Nvidia cards, you do not need this. You can use the normal cables that came with your power supply. And for your information, VERY IMPORTANT, never mix cables from different PSU suppliers as they have different connectors on the PSU. If you do this anyway, your card may burst into flames.

Salü, almost certainly not. The connectors on the Seasonic power supply do not look like normal 8-pin PCI-E connectors. You have the "normal" cables for that. LG

According to the manufacturer, the cable should go from 2x 8-pin (PSU) to 1x 12VHPWR (GPU). The cable should be intended to use a 12+4 pin GPU with an ATX 2.xx power supply from 850 watts.