Great. What SSD model inside iMac Pro (4 TB) shows at "Apple - About This Mac - System Report - Hardware - Storage - Physical Drive - Device Name"? For instance, iMac 5K 27-inch shows "APPLE SSD SM2048L", which stands for SaMsung SSD 2,048 GB (2 TB). Thanks and Happy Christmas!
Surprising results for 27" iMac Retina 5K (mid 2017): TESTED: 2017 iMac 5K SSD Speed vs 2015 iMac 5K (Surprising Finding) Thus the 2017 iMac 5K is substantially slower for everyday tasks that involve intensive I/O with smaller reads, in spite of the 40% greater speed for large reads. <https://macperformanceguide.com/blog/201...-2017iMac5K-SSD.html> 2017 iMac 5K: Flash Drive (SSD) 2015 iMac 5K: writes at 1520 MiB/sec and reads at 2075 MiB/sec 2017 iMac 5K: writes at 2102 MiB/sec and reads at 2915 MiB/sec. <https://macperformanceguide.com/iMac5K_2...-flashDriveSSD.html> — That is less read speed than Samsung 960 PRO with sequential R/W (read/write) speeds up to 3,500/2,100 MB/s and random R/W speeds up to 440/360K IOPS, respectively.