This is a ready made eGPU solution which works flawlessly.

Upgrade your setup with the Razer Core X Thunderbolt 3 External Graphics Enclosure. This eGPU comes with a PowerColor Red Dragon AMD RX 6800 XT card already installed. The card was purchased new in late 2023, and has had very light use as I just upgraded to an Apple Silicon Mac Studio and no longer need this eGPU or card. 

The Razer Core X features USB-C connector for seamless connectivity and boasts a sturdy build with a sleek design. With its compatibility with Razer laptops and other Thunderbolt 3 enabled laptops, this dock is a must-have for serious gamers and graphic designers.