Get the new iMac 5K at B&H Photo and see the Lloyd’s computer gear wishlist.
Save money on 32GB or 64GB OWC memory (about $400 savings vs Apple!)
MPG recommends this iMac 5K: 27" Retina 5K Display, 4.0 GHz Intel Core i7 (Skylake), 1TB Flash, 8GB memory, AMD Radeon R9 M395X GPU (4GB GDDR5) + 32GB or 64GB OWC memory.
The two machines tested are the fastest possible CPUs as of late 2015. The iMac 5K as tested here is well into Mac Pro pricing territory, approaching $4K as configured, though of course it includes the display.
See the ongoing review of the late 2015 Apple iMac 5K at Lloyd’s MacPerformanceGuide.com.