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Up to 65% better pricing than Apple
Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).
iMac 5K vs Mac Pro: Image Scale (PhotoZoom Pro)
Related: 4K and 5K displays, computer display, GPU, iMac, iMac 5K, Mac Pro, Macs, video
iMac 5K 4.0 GHz, 32GB, 1TB SSD, AMD Radeon R9 M295X 4GB GDDR5 -versus-
2013 Mac Pro 3.3 GHz 8-core, 64GB, 1TB SSD, D700
The two machines tested here are the fastest possible models for this type of work (as of late 2014).
PhotoZoom Pro 5 (image scaling)
Photozoom Pro has GPU support including an optimization setup which is claimed to determine best GPU performance.
While the Mac Pro with its dual D700 GPUs and 8 cores wins here, the iMac with its four CPU cores and single GPU is not far behind.
Mac or PC.
Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
Blazingly fast Thunderbolt 3 SSD!
Up to 4TB capacity, USB-C compatible.
USB-C model also available
Eight-bay Thunderbolt 3 high-performance storage for photo and video.
Hard drives or SSDs.
Non-RAID or RAID-0/1/4/5/10.
Capacities up to 128 Terabytes!