Thunderbolt 4/5 Docks: Impact on SSD Performance
This article tests the performance impact of Thunderbolt 4 and Thunderbolt 5 docks on different SSDs (Thunderbolt 3 and USB4). Results show that using a TB5 dock with an Intel Mac nearly doubles the speed of a USB4 SSD, reaching 20Gb/s—unprecedented. However, TB3 SSD read speeds decreased with the TB5 dock. A TB4 hub limited USB4 SSD speeds and reduced TB3 SSD write speeds. The tests demonstrate unpredictable performance variations depending on the Mac, dock, and SSD combination, highlighting the need for careful testing.
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