Late 2015 iMac 5K: IntegrityChecker 'verify' (SHA1 hash)
Get the new iMac 5K at B&H Photo and see the MPG 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 rocking fast 1TB flash drive in the late 2015 iMac 5K absolutely trounces the 2013 Mac Pro on a real-world test that is I/O bound.
iMac 5K (Late 2015): Integrity Checker Verify
Wow. I want one of these flash drives in my Mac Pro. Between IntegrityChecker and 'git', this fast flash drive makes a huge difference.

late 2015 iMac 5K 4.0 GHz M395X vs others