The latest 15-inch MacBook Pro, with a 3.1GHz 4-core i7 processor, 16GB of 2133MHz DDR3 RAM, and a Radeon Pro 560 video card with 4GB of RAM.A 'trashcan' Mac Pro circa December 2014, with a 3.7GHz 4-core Xeon E5 processor, 64GB of 1866MHz DDR3 RAM, and dual AMD Profire D300 video cards with 2GB of RAM each.Going up against the iMac Pro were three contenders at various price points: If you configure it yourself on the Apple website, you'll find this setup weighs in at $6,400. His unit sports: a 3.2GHz 8-core Xeon W processor, 64GB of 2666 MHz DDR4 ECC Memory, and an AMD Radeon Pro Vega 64 with 16GB of its own HBM2 RAM. The iMac Pro Smith was testing is a slightly upgraded version of the base model. In Colin's case, he pit a slightly upgraded version of the iMac Pro against an Alienware gaming PC, a MacBook Pro, and the current Mac Pro. Photographer and Photoshop expert Colin Smith of PhotoshopCAFE recently embarked on a test many photo and video editors have been asking for: comparing the new iMac Pro against some of its main competition.