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More about 2019 Mac Pro vs iMac 5K vs iMac Pro...
2019 iMac 5K: Convert RAW Files to JPEG With Adobe Camera Raw (Sony A7R III)
Related: 2019 iMac 5K, 4K and 5K displays, Adobe Camera Raw, computer display, iMac, iMac 5K, Macs, memory, Photoshop, RAW, Sony A7R, Sony A7R II, Sony A7R III, video
MPG tested the 2019 iMac 5K 3.6 GHz Intel Core i9 8-core / 128GB / 2TB / Radeon Vega 48. Purchase with 8GB memory, then add 64GB or 128GB OWC memory. See recommended Macs for photographers and videographers.
These tests made possible by loaner gear from B&H Photo and OWC, so please buy your gear at B&H Photo and OWC/MacSales.com using any link from this site or MacPerformanceGuide.com, ditto for OWC/MacSales.com. See also 2019 iMac 5K: Recommended Models and Accessories.
Unsure which Mac to get or how to configure it? Consult with Lloyd.
Raw file conversion to JPEG — Sony A7R III raw files
Sony uncompressed raw files are slightly faster to deal with because no decompression is needed although Sony’s compressed format is very fast to decompress.
Double the CPU cores makes for a major gain in speed with the 2019 iMac 5K, with the 2017 iMac 5K taking 56% to 60% longer. That’s not double, but it’s a very solid improvement.