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2020 iMac 5K: Convert RAW Files to JPEG With Adobe Camera Raw (Sony A7R IV)
Related: 2019 iMac 5K, 2020 iMac 5K, 4K and 5K display, Adobe Camera Raw, iMac, iMac 5K, Macs, memory, Photoshop, Sony A7R, Sony A7R II, Sony A7R III, Sony A7R IV, video
MPG tested the 2020 iMac 5K 3.6 GHz Intel Core i9 10-core / 128GB / 2TB / Radeon 5700. Smart move: buy with 8GB memory, then add 64GB or 128GB OWC memory to save a ton on memory cost (same memory as 2019 iMac 5K).
Disk I/O is not a significant factor, the files being small relative to the workload, and on the fast internal SSD.
Raw file conversion to JPEG — 60-megapixel Sony A7R IV raw files
CPU cores rock on the 2019 Mac Pro.
There is no meaningful difference between the 2020 iMac 5K and the 2019 iMac 5K, but the 2020 iMac 5K is slower. The difference in Photoshop version and macOS version might account for it.