I’m not really happy with the GTX 680 either, gets messy really quick with those artefacts! I don’t know if it’s me but After Effects seems to become poorer and poorer since they cut off the multiprocessing stuff, that’s why I was thinking that maybe I should just upgrade to those fancy i7, the iMac 5K seems to work well for the 4k ish price tag: https://browser.geekbench.com/mac-benchmarks
I wish Adobe could give a hint or two on the future of AE but I guess they’re busy updating CC which is currently really buggy on Sierra.
I’ve thought about going to Windows but I just love the mac OS too much! I guess I’ll just throw a 980ti GTX in my old mac pro and get a 5K monitor to refresh my setup and wait for something decent from Apple, which may never come…