Can you use multiple Thunderbolt ports to connect an external graphics card?

Dec 12, 2018
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Thunderbolt ports have a maximum 40 Gbps transfer rate. Since external enclosures use 1 Thunderbolt 3 connection, they only get 40 Gbps to the graphics card, which bottlenecks it. So if you use at least 3 Thunderbolt ports, you get (40 x 3) 120 Gbps to the graphics card, which should not bottleneck it, and give you full performance.
I thought of this question because I saw how many mini PC's have no port for a graphics card (PCIe or MXM) (like the Mac Mini). But I saw the Mac Mini has 4 thunderbolt ports so that's where this question came from.
 

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