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2020 iMac 5K: Convert RAW Files to JPEG With Adobe Camera Raw (PhaseOne IQ4)
Related: 2019 iMac 5K, 2020 iMac 5K, 4K and 5K display, Adobe Camera Raw, computer display, iMac, iMac 5K, Macs, memory, Phase One, Phase One digital backs, Phase One IQ4 digital back, Photoshop, RAW, storage, 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 — 150-megapixel PhaseOne IQ4 raw
CPU cores rock on the 2019 Mac Pro.
There is no meaningful difference between the 2020 iMac 5K and the 2019 iMac 5K. The difference in Photoshop version and macOS version might account for it.