![]() ![]() We have tested at least one external SSD before that used QLC (Quad Level Cell), the cheaper, slower NAND chip, and that was the Adata SD600Q but even then, the performance wasn’t THAT bad. To make matters worse, we couldn’t determine any specs via our usual tool, CrystalDiskInfo. What could have happened? Other than the interface, performance in a solid state drive is determined by the NAND chip it employs and the controller it uses. We tried the drive with a number of cables to eliminate any possible non-hardware related issues. We have reached out to Biwin Storage to obtain an explanation and will report back if we get one. There’s no obvious answer as to why despite the fact that, well, the HP P700, part of the same stable, performs significantly better. Write speeds - and to a lesser extent read speeds - remain the biggest issue with this drive in whatever configuration we tested it. A 10GB file took about 45 seconds to transfer or a real life transfer speed of 224MBps. Our own numbers from AJA, CrystalDiskMark, ATTO and AS SSD support the fact that this is a poor drive when it comes to sheer performance. Turns out though that they were not that far off. Here’s how the HP P500 1TB external SSD performed in our suite of benchmark tests:ĬrystalDiskMark: 411MBps (read) 265MBps (write)Ītto: 397MBps (read, 256mb) 255MBps (write, 256mb)ĪS SSD: 455MBps (seq read) 465MBps (seq write) ![]()
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January 2023
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