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Crucial P1 500GB and 1TB M.2 NVMe SSD Review – More QLC

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Once we saw Intel launch QLC flash installed in their recent 660p M.2 part, I had a feeling that Micron would not be far behind, and that feeling has been confirmed with the launch of the Crucial P1 M.2 SSDs: Both the 500GB and 1TB models are single sided. The 2TB (not yet released) will likely have packages installed at the rear. No surprises with the packaging. Does the job just fine. Specs are also reasonably standard for an NVMe SSD at this point, though we do see a bit more of a falloff at the lower capacities here. This is partially due to the use of QLC flash, even though these specs are likely assuming full use of the available SLC cache. Since QLC allows for higher capacity per die, that translates to fewer dies for a given SSD total capacity, which lowers overall performance even at SLC speeds. This is a common trait/tradeoff for the use of higher capacity dies. Now for the performance results. Details on the test suite are. I made it a point to include the Intel 660p near the P1 results as both products are nearly physically identical, with the primary difference being down to firmware implementations between the two products.

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