Disclaimer, buying options & troubleshooting for OCuLink & M.2 NVMe eGPU adapters for reliable up to 64Gbps ePCIe 4.0 x4 attachment is here
So I have the idea of building a LAN party PC in the Velka 3 case with a light weigh GPU inside and the ability to connevt external GPU for heavy lifting when I really need it. I was thinking about using the Ryzen 7 3700x but I'm not terribly up to date on current gen stuff and I read that AMD does not have proper support for thunderbolt 3?
My question is are there any recommendations for a mini itx build with a ballpark CPU and motherboard that will support the use of external GPU?
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
@thomas022, There's only one ITX motherboard that supports AMD processors and has on-board Thunderbolt 3, X570 Phantom Gaming-ITX/TB3.
Instead of going Thunderbolt 3 route for eGPU, I would recommend going with M.2 eGPU. The performance is better and it's a lower cost overall. You can look into ADT-Link R43SG.
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2023 8" Lenovo Legion Go (780M) [R7K,8C,U] + RTX 5060 Ti @ 64Gbps-USB4v1>TB5 (Gigabyte AORUS AI BOX) + Win11 25H2 [build link]