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MyDigitalSSD BPX Pro 960GB SSD Review - As good as Original?

By: Chris Ramseyer | SSDs in Storage | Posted: Sep 27, 2018 3:00 pm

1TB Class Performance Testing

 

Product Comparison

 

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We pulled in seven popular NVMe SSD to compare to the new 1TB class BPX Pro. Every drive in this section is available on the market other than the Intel 600p, a popular and early to market low-cost NVMe drive that many of our readers own. The 600p is still available on Amazon but at an inflated price.

 

Sequential Read Performance

 

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With the mass production firmware in place, we hoped our queue depth 2 and 4 dip would subside in the sequential read test. It hasn't, but other tests will show sequential read performance is strong with this one.

 

Sequential Write Performance

 

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The sequential writes are nearly off the chart. We recorded very strong results across the queue depth range including QD1 where the BPX Pro even outperformed the Samsung 970 Pro in SLC cached writes.

 

Sustained Sequential Write Performance

 

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Phison has increased the SLC write buffer performance on the 1TB BPX Pro. The buffer is now dynamic but still gives users a lot of space to transfer large media files before the performance drops

 

 

Random Read Performance

 

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The random read test at low queue depths feels like the big reveal. The BPX Pro manages to push past 13,000 IOPS at QD1 and scaled really well as we increase the queue depth. It doesn't reach the same high rates as the Silicon Motion, Inc. SM2262 drives.

 

The BPX Pro uses Toshiba's 400 MT/s flash, and the SMI drives use Micron's flash with a 667 MT/s bus speed. Toshiba's next-generation memory, BiCS4, operates up to 800 MT/s but the memory is not widely available. BiCS4 give MyDigitalSSD an update path but it's a bit early to start talking about BPX Pro 2.

 

Random Write Performance

 

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The BPX Pro has the data writes down pat. At QD1 the 960GB drive blazes past the other drives thanks to the new SLC algorithms and data management.

 

70% Read Sequential Performance

 

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The bar chart is a bit misleading since it weighs the lowest queue depth. The 960 GB BPX Pro starts out a little lower than the others but quickly ramps up the sequential mixed workload. The drive's QD4 mixed workload performance is crushing to most of the other drives and it only scales higher at QD8 where it stands alone with nearly 3,000 MB/s.

 

70% Read Random Performance

 

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The random mixed workload performance is a bit more restrained. The 960 GB BPX Pro is strong with nearly 33,000 IOPS at QD2 and ramping up quickly as we increase the workload.

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