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

[joshua123033]

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.

 

[k1114]

No but there isn't any gpu that utilizes the full x16. Tb3 with x4 shows a negligible bottleneck. A 1080ti is just 4% less. You'd be bottlenecked from a slower mobile cpu than the tb3 port.