OK, I'll go out on a limb and say you'll have to fiddle around a bit.
I think there are very few folks who have stated "Yep, just plugged stuff in and it all worked perfect from get go"
Razer has a business model where eGPU working is important.
Apple, not so much. They could make their machines work perfectly with =eGPU but they have no reason to.
Instead, what has been found is that each and every model and version requires some fiddling or faddling. At the very least for Windows you will probably have to play with timing of when you plug TB cable in. For the new MBP 2016 for instance, the method to get Windows working with eGPU is different for each of the 3 types. I have Non-Touchbar version and I found a super easy way with no DSDT fix required. But most with Touch Bar have found that a DSDT hack is needed. This means running in Test Mode which disables some things and slows the boot down. And it is likely that running a Nvidia Kepler card is easier than a Maxwell card and the means to run those will likely be different than if you have an AMD card.
And all of that is why there isn't going to be a simple helpful SINGLE YES OR NO answer from someone saying "Go for it, all will be fine". Here are 4 possible outcomes:
1. You find someone with same gear who got it working, read their experiences, and do the same thing and get same results.
2. Someone with same exact setup will be bored, reading through random posts and find this thread, type up what worked/didn't work for them.
3. You will buy the gear and find the answer, hopefully sharing your results here.
4. You'll give up and not bother.
Consider doing #3 if 1 and 2 don't happen. We need more people doing the leg work.
I have 4 or 5 MacBooks here, not one like yours. I can answer for the ones I have, but anything about a different model would be a wild guess AT BEST. Nobody can just look at specs and say "It Shall Work". With eGPU only way to know for sure is someone to try it and report.