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Cash8503
By Cash8503
in Graphics Cards
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If i was to use a usb-a male to thunderbolt three female adapter would an external graphics card work

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No, only thunderbolt has PCIe lanes built into it. You have to use thunderbolt end to end for an external GPU to work.

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7 minutes ago, Darpyface said:

No, only thunderbolt has PCIe lanes built into it. You have to use thunderbolt end to end for an external GPU to work.

This is correct. Thunderbolt 3 is around 40Gbps, USB 3 is half that AT BEST. EVEN IF IT DID WORK with some sort of IC or adapter built in, you'd be running the GPU at PCIe 3 x2 speed AT BEST, and PCIe 2 x1 speed AT WORSE which would be terribly bad for your framerate.

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