Add a bridge chip and USB’s overhead, and 450MBps is pretty much the sustained limit. No SATA drive, such as those we believe to be inside the WD My Passport SSD (WD wouldn’t say what was in the drive-this is supposition based on performance) and Samsung T3, is going to transfer data at much over 500MBps, even attached directly to the SATA bus. If you’re wondering how a USB 3.1 Gen 1 drive (the Samsung) can keep up with or surpass a Gen 2 drive, it’s not the bus-it’s the drive. WDĪS SSD showed the WD My Passport SSD as faster reading, but considerably slower writing than the Samsung T3 The Kingston HyperX Savage is a top-notch internal SSD that we included in the chart to show the relative performance of SATA 6Gbps and USB 3.1. In the AS SSD test, the WD My Passport SSD reads a bit faster, but writes considerably slower than the Samsung T3. The Samsung T3 is still our fastest performer overall in the single-drive USB SSD category, but with large files you’ll never notice the difference with the WD My Passport SSD. The Sandisk Extreme 900 included in the comparison uses two M.2 SATA SSDs in RAID 0 to boost performance. In our 20GB files and folder tests (see the chart below), the WD My Passport SSD lags significantly behind the Samsung T3, especially when reading. However, both our 20GB copy tests and the AS SSD benchmark mildly disagree.Īccording to CrystalDiskMark, the My Passport SSD is faster than the Samsung T3, our other tests, including the hands-on, disagree. The 1TB My Passport SSD is a bit faster than the Samsung T3 according to CrystalDiskMark, as shown below. Recreate the partition and re-format, and they’re good to go, but the data is gone. We’ve experienced this type of failure with both the Samsung T1 and T3, as well as the Sandisk Extreme 900, with no discernible reason as to why. That’s because all of the high-capacity USB SSDs we’ve used will occasionally, and seemingly arbitrarily, decide they no longer contain data. Note that while WD, unlike Samsung, bundles some pretty fair backup software, we don’t recommend external SSDs for backup. The beveled top gives the WD My Passport a nice look, and better grip. The drive uses a USB Type C port, but comes with a C-to-A adapter for use with older systems. A bit gaudier than the Samsung T3, but perhaps more interesting. Regardless, the T5 is very fast external storage.The drive weighs only a few ounces, and the two-tone, half-beveled design looks quite nice. You’ll also notice that the T5’s parity with internal SATA drives in the synthetic benchmarks disappeared in our real-world test when writing all types of files, as well as reading smaller files. But it’s still the fastest single-drive external SSD we’ve tested.
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We offloaded the included management software and reformatted to NTFS for better performance when writing small files. Note that the T5 arrived formatted to exFAT. Our real-world copy tests showed gains over the T3 as well, though a bit more modest. It’s not in real life, but it is still very, very fast. IDGĪS SSD says the T5 is every bit as fast at Kingston’s super-fast internal MLC SATA drive. We’ve seen better scores from an external USB drive only when RAID or PCIe/NVMe is involved. With the exception of random access times, the numbers were as good or better than an internal SATA SSD drive and about 20 percent faster than the T3. After our initial test unit failed to pass muster, Samsung replaced it, and the second set of benchmark results turned our heads.
As the major change between the T3 and T5 is the implementation of USB 3.1 Gen 2 (10Gbps), let’s first talk about speed.
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