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Portable External SSD Shootout: ADATA SE730H vs. Samsung Portable SSD T5 vs. WD My Passport SSD

By Kenny Yeo - 2 Apr 2018

CrystalDiskMark results

CrystalDiskMark Results

CrystalDiskMark is an easy-to-run and quick utility to use to gauge a drive’s performance. It measures sequential read and write performance and random read and write speeds of random 4KB, 4KB (queue depth 32) and 512KB data.

On CrystalDiskMark’s sequential read and write test, the trio of drives posted very comparable numbers. They were also noticeably faster than the ADATA SD700 and Samsung T3, which demonstrates the benefits of the faster USB 3.1 Gen 2 connection.

When it came to smaller 4K data blocks, the Samsung Portable SSD T5 pulled ahead with the highest read and write speeds. The ADATA SE730H was close behind. However, the WD My Passport SSD was significantly slower - its write speeds were significantly slower.

On the demanding 4K, 32 queue depth workload, the Samsung Portable SSD T5’s read speeds were amazing. It recorded 335.8MB/s, which is a staggering 300% faster than the ADATA SE730H and over 12 times faster than the WD My Passport SSD. Clearly, the My Passport SSD is significantly poorer when it comes to handling smaller data blocks and high queue depths. 

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