The iPad Pro has 4GB of ram (based on Adobe's website):
http://blogs.adobe.com/conversation...ivity-apps-during-apple-ipad-pro-keynote.html
Quite sad that the iPad Mini 4 doesn't have the A8X but instead the A8. It still seems to feature 2GB of ram thank god.
It is sad, but honestly, my Mini 2 hasn't struggled with anything I've thrown at it, unless the game had issues across the board. In fact, there's been a few games where I've read th iPad Air 2 had framerate issues with that I didn't have. I have no idea why. Probably just optimization vs raw power that caused those.
Of course that will change of devs target the new devices coming out. I think Metal has helped a lot.