Think the display is impressive? The system specs are equally striking.

Inside the new iMac with Retina 5K display is Intel's new fourth-generation Core processors, with the lineup starting with the 3.5GHz Core i5 (Turbo Boost up to 3.9GHz), and going up to the 4.0GHz Core i7 (Turbo Boost up to 4.4GHz).

The new iMacs also feature AMD Radeon R9 M290X graphics processor with 2GB of GDDR5 memory, with an option to upgrade to AMD Radeon R9 M295X with 4GB of GDDR5 memory.

The systems also start with 8GB of 1600MHz DDR3 RAM, and can be upgraded to 32GB as an option. Storage ranges from a 1TB Fusion drive to 1TB of PCE-e flash storage.