it seems that MSI has been listing RTX 4080 cards for a short while. MSI outs custom-designs for the RTX 4080 (16 GB); across three of its graphics card brands. The RTX 4080 SUPRIM X and RTX 4080 SUPRIM are at the top of the list, followed by the RTX 4080 Gaming X and RTX 4080 Gaming, and finally the RTX 4080 Ventus 3X and RTX 4080 Ventus 3X OC. 

The Ventus 3X is projected to run at NVIDIA reference speeds, with a minor factory overclock on the Ventus 3X OC. The RTX 4080 Gaming features a similar overclock to the Ventus 3X OC, but with a better cooling solution and RGB LEDs. The factory-overclock grade of the RTX 4080 Gaming X is higher. The RTX 4080 SUPRIM has a factory-overclock similar to the Gaming X, but with MSI's top SUPRIM cooling system; the SUPRIM X has the company's highest factory-overclock rating.

The RTX 4080 SUPRIM and SUPRIM X have a board design that looks similar to the RTX 4090 SUPRIM X, with a beefy 4-slot cooling solution, premium multi-tone metal shrouds and backplates, the company's highest-quality PCB components, and its top VRM solution. 

MSI GeForce RTX 4080 SUPRIM X, Gaming X, and Ventus 3X photos Leak