ginipig

Hi guys. I'm a eGPU noob, but now I'm looking for solution for my MacBook Pro 15" radeon 460. My main goal is to use the eGPU in OS X, for creative applications such as Octane renderer and Adobe suite. With all I have read, I have come to conclusion that it is still best to go for TB2 solutions right? Is the Akitio2 + gtx 980ti route still the easiest and most reliable for this usage? If I understand correctly, any performance boost gain with TB3 is marginal at this point? Any advice is highly appreciated!