I'm currently using an early 2012 15" MacBook Pro (non-retina display) for all of my video production and post processing. I'm holding off buying a 5K iMac until they (hopefully) release new models soon. The absolute worst part of my workflow now is the ridiculous After Effects render times. If I was to get a system today I would get: 27" iMac 5K 4.0GHz quad-core i7 64GB ram 1TB Flash Storage AMD Radeon R9 M395X Basically what I'm showing is that I'll be speccing the system out to the maximum options on everything. I'll be doing this to future-proof but also to increase my video post processing speed. Should I expect dramatically better results with these specs? I'd hate to drop over $3,500 for a system that only gets a little bit better performance where I need it the absolute most - particularly in After Effects and Premiere Pro render times. Thanks in advance for any input.