Mac

3.1GHz quad-core Intel Core i5 processor

Turbo Boost up to 3.6GHz

8GB onboard memory, configurable up to 16GB, 1TB hard drive 1 Intel Iris Pro Graphics 6200

Retina 4K 4096-by-2304 P3 display

3.2GHz quad-core Intel Core i5 processor
Turbo Boost up to 3.6GHz
8GB (two 4GB) memory, configurable up to 32GB
1TB hard drive1
AMD Radeon R9 M380 with 2GB video memory

Retina 5K 5120-by-2880 P3 display

3.2GHz quad-core Intel Core i5 processor

Turbo Boost up to 3.6GHz

8GB (two 4GB) memory, configurable up to 32GB

1TB Fusion Drive AMD Radeon R9 M390 with 2GB video memory

Retina 5K 5120-by-2880 P3 display

3.3GHz quad-core Intel Core i5 processor
Turbo Boost up to 3.9GHz
8GB (two 4GB) memory, configurable up to 32GB
2TB Fusion Drive1
AMD Radeon R9 M395 with 2GB video memory
Retina 5K 5120-by-2880 P3 display