Current eGPU enclosure technology is for powering up a machine with integrated graphics, not keeping up with top of the line cards. Thunderbolt 3 just isn't fa

Current eGPU enclosure technology is for powering up a machine with integrated graphics, not keeping up with top of the line cards. Thunderbolt 3 just isn't fast enough for that to be feasible. The bottleneck is such that there's already no point in putting a high end card like the GTX 1080 Ti in an eGPU enclosure (Source: https://arstechnica.com/gadgets/2017/08/laptop-external-graphics-card-review/ https://arstechnica.com/gadgets/2017/08/laptop-external-grap... ).