Techspot recently investigated the ability of current generation ultrabooks to game, without external assistance.  They tested using a Lenovo X1 Carbon, similar to what Ken utilized when he benchmarked the AKiTiO Node external GPU.  Techspot's model had a Core i5-7200U as opposed to the 7300U both chips have the same HD 620 iGPU, but only Ken's had help. 

Techspot focused on the performance the ultrabook could provide in 34 different games, from current and past AAA games as well as eSports and even 2D indie games.  Take a look through their results to see just how far we have come since the original generations of Intel iGPUs which simply could not game at all.  The results show that there is indeed a market for Thunderbolt based external GPUs.

"With this in mind, we've tested 34 games on the Lenovo ThinkPad X1 Carbon: from current AAA titles to older 2D platformers, to give you an idea of what games are actually playable on modern ultraportables."

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