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Fast Storage on iMac

posted Apr 4, 2020, 12:45 AM by MUHAMMAD MUN`IM AHMAD ZABIDI   [ updated Apr 4, 2020, 1:37 AM ]
Experiments done during Movement Control Order.

All tests were run on AJA Video Systems Test Lite:

Speed of Internal PCIe SSD disk, 256GB. 90% full.

Speed of G-Technology Thunderbolt Drive, 4 TB HDD, connected to Displayport/Thunderbolt port. 80% full.

Speed of Sandisk Extreme SSD, 500GB, connected to USB port. Fresh out of the box.
Speed on Sandisk Fit, low-cost USB drive, 8GB blank disk.

This is a Fit drive... OK for mostly read, sometimes write use cases. On reads, it's still faster than a mechanical hard drive.

The values vary slightly when run repeatedly, but not by much.
Conclusion: nothing can beat internal PCIe.