GPU dilemma

thanks you to those that commented in my other thread.

I'm trying to find a graphics card for my Mac Pro so I can use it for 1080p gaming.
I also need one for use with unreal engine.

While the RX 480 seems great, I'm not entirely sure weather I'd need it.
I'm trying to balance cost, future proofing and performance, and it's proving to be quite difficult.

The ultimate decision is weather to get the 480 or something lower.


Pros for the 480:
. New Architecture
. Good at 1080p
. better...

GPU dilemma