I just bought a brand new 2019 iMac 5K, 27", 3,7 GHz i5 with 8 GB of RAM and a 512 GB SSD.
Running Blackmagic Disk Speed Test gives an avg. write speed of 688 MB/s and a read speed of about 808 MB/s (see attached screenshot). I would have expected at least a factor 2 faster speeds.
Anyone else experiencing these 'low' speeds?
Do a clean install. It have fixed my problems of slow speedI've got a 2019 iMac 5K 27" with 2TB SSD, 3.6 GHz 8-Core Intel Core i9, 32GB RAM
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My read is in line with others posts at about 2500 MBs but for some reason, my write speed is abysmal at 390 MBs.
I've got drive encryption turned on (Monterey 12.1), but can't think of any other reason why the speed is so bad regardless.
Anyone has any clue?