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Crucial P2 1TB 3D NAND NVMe $89.99

  • Last Updated:
  • Sep 3rd, 2022 12:44 am
Thread Summary
If you're looking for more options, RFD Reviews has a list of the best SSDs for your devices!
6 replies
Deal Expert
Jun 20, 2020
20144 posts
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Toronto
Dram-less with Micron QLC NAND flash memory

Sequential Read - 2,400 MB/s
Sequential Write - 1800 MB/s
SSD Endurance (TBW) - 300TB
Warranty - Limited 5-year

Unsavory Flash Swap: Re-Testing Crucial’s P2 SSD After QLC Downgrade
https://www.tomshardware.com/features/c ... -downgrade
Destiny is all
Newbie
Apr 12, 2021
31 posts
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Dhanushan wrote: Dram-less with Micron QLC NAND flash memory

Sequential Read - 2,400 MB/s
Sequential Write - 1800 MB/s
SSD Endurance (TBW) - 300TB
Warranty - Limited 5-year

Unsavory Flash Swap: Re-Testing Crucial’s P2 SSD After QLC Downgrade
https://www.tomshardware.com/features/c ... -downgrade
They mention once in the article that they got 40 MB/s write speed on testing, but then say it was spec'd at 900, which was consistent with testing?

I'm confused
Deal Expert
Jun 20, 2020
20144 posts
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Erick2142 wrote: They mention once in the article that they got 40 MB/s write speed on testing, but then say it was spec'd at 900, which was consistent with testing?

I'm confused
Tom's Hardware tested a 500GB version. Crucial says it has Sequential Write speed of 940 MB/s

The 40 MB/s write speed is in their Sustained Write Performance and Cache Recovery test

The SSD controller uses some of QLC as SLC for cache (roughly 135 GB). When SLC cache is full, the SSD controller writes the data to the slower QLC portion. The SLC cache will shrink, as more data is written to the drive


How to address QLC NAND tradeoffs
QLC NAND addresses the increased capacity requirement but comes with tradeoffs of slower throughput and lower endurance. One way to address slower throughput and lower endurance of QLC is to add a small SLC cache on the drive. Data from the host is written to the SLC cache first, and then data is moved to QLC. Throughput seen by the host depends upon the workload. If the size of the data that is being written is smaller than the SLC cache size, then the host will see SLC throughput. If the data being written is larger than SLC cache size, then the combination of SLC and QLC performance will be seen.

from QLC NAND for Consumer SSDs
Destiny is all
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Apr 18, 2009
3991 posts
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are these QLC ssds good to use as USB external drives primarily used as a backup drive?
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Nov 15, 2013
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chroma_cg wrote: are these QLC ssds good to use as USB external drives primarily used as a backup drive?
They're fine, though often cheaper older SATA drives do a better job there. The chassis tend to be cheaper and the performance is more consistent since they tend to use TLC. The top speeds are lower but most external chassis will max out before the drive anyways. It's not a huge deal either way unless you tend to write a lot of large files to the drive anyways.

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