# WD Blue 3D NAND 500GB PC SSD Poor Speeds

**URL:** <https://forums.sandisk.com/t/wd-blue-3d-nand-500gb-pc-ssd-poor-speeds/300374>\
**Category:** WD\_BLACK | Blue | Red | Green | Gold SSD\
**Created:** [May 30, 2018, 9:11pm UTC](https://forums.sandisk.com/t/wd-blue-3d-nand-500gb-pc-ssd-poor-speeds/300374 "2018-05-30T21:11:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jaime58](https://avatars.discourse-cdn.com/v4/letter/j/eb8c5e/32.png) [@Jaime58](https://forums.sandisk.com/u/Jaime58)\
**Post date:** [May 30, 2018, 9:11pm UTC](https://forums.sandisk.com/t/wd-blue-3d-nand-500gb-pc-ssd-poor-speeds/300374/1 "2018-05-30T21:11:37Z")

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Looking for advice.  
Should I return this drive for a replacement?  
Just bought it a couple of days ago and Crystal Disk Mark is showing speeds way below advertised.  
Not much better than the 3.5 year old Sandisk it replaced and that drive still has 97% health.

Thanks

## CrystalDiskMark 6.0.0 x64 (C) 2007-2017 hiyohiyo Crystal Dew World : [https://crystalmark.info/](https://crystalmark.info/)

- MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]

- KB = 1000 bytes, KiB = 1024 bytes

Advertised speeds:

Max Sequential Read Up to 560 MBps  
Max Sequential Write Up to 530 MBps  
4KB Random Read Up to 95,000 IOPS  
4KB Random Write Up to 84,000 IOPS

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**Author:** ![benchwarrant17](https://avatars.discourse-cdn.com/v4/letter/b/5f9b8f/32.png) [@benchwarrant17](https://forums.sandisk.com/u/benchwarrant17)\
**Post date:** [October 16, 2018, 8:44pm UTC](https://forums.sandisk.com/t/wd-blue-3d-nand-500gb-pc-ssd-poor-speeds/300374/2 "2018-10-16T20:44:02Z")

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Just installed WD Blue

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## CrystalDiskMark 6.0.1 x64 (C) 2007-2018 hiyohiyo Crystal Dew World : [https://crystalmark.info/](https://crystalmark.info/)

- MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]

- KB = 1000 bytes, KiB = 1024 bytes