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MyDigitalSSD BPX Pro 240GB SSD Review (Page 2)

By Chris Ramseyer from Oct 4, 2018 @ 10:00 CDT

256GB Class Performance Testing

Product Comparison

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The 256GB class is quite a bit different from the 512GB and 1TB+ sizes. High-density die found in modern SSDs equal the number found in 128GB SSDs just a few years ago. Modern flash is faster but like the older 128GB SSDs, there are large performance gaps between this size and the next size up.

Looking at this end of the market from the price end instead of performance, these drives are cheap. Some low-cost NVMe SSDs get very close to premium SATA SSD prices.

Sequential Read Performance

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The 240GB BPX Pro is the first of the three capacities we tested to not have a strong dip at queue depth 2 and 4. There is still an issue that doesn't allow the drive to scale well in our test but, like the other sizes, this disappears with other software and even in other tests later in this review.

Sequential Write Performance

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MyDigitalSSD's claim of 1,100 MB/s sequential write speeds holds true. We measured right around 1,100 MB/s across the queue depth range with the 240GB BPX Pro.

Sustained Sequential Write Performance

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With a sustained QD1 write of 128KB data to the entire user LBA range, we didn't see a lot of variation even outside of the SLC buffer.

Random Read Performance

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As we mentioned with the 480GB BPX Pro, the other drives lose random read performance as we move down the capacities. The BPX Pro series stays just above the 13,000 IOPSs mark at QD1 in all three sizes we tested thus far.

Random Write Performance

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Like the other sizes, the 240GB BPX Pro rips through the random write test delivering high performance at very low queue depths where typical desktop workloads happen.

70% Read Sequential Performance

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The deeper we get into the 240GB BPX Pro test the better it looks. The QD2 sequential mixed workload result is among the highest of our test group. The real fun comes as we ramp up the queue depth and the BPX Pro scales like your bar tab on Lady's night.

70% Read Random Performance

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The 240GB BPX Pro also performs well with random mixed data. The three top drives are very close together between QD2 and QD8. The Pro outperforms all three of the SMI SM2262 drives between QD4 and 8.

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