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Western Digital Unveils WD Blue SN550 M.2 NVMe SSD

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rjohnson11
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2019/12/11 23:28:42 (permalink)
https://betanews.com/2019/12/10/western-digital-wd-blue-sn550-ssd/
 
Western Digital unveiled the WD Blue SN550 line of M.2 NVMe SSDs. A successor to the WD Blue SN500, the SN550 is updated with a new controller that utilizes PCI-Express 3.0 x4 (compared to just x2 on the SN500). Designed in-house by WD and SanDisk, the controller is based on the same architecture as the one that drives the WD Black SN750, but is DRAM-less, and has fewer flash channels. Speaking of which, WD deployed 96-layer 3D TLC NAND flash, and wants the drive to compete in pricing with QLC NAND-based drives such as the Crucial P1. The 250 GB variant is priced at USD $54, the 500 GB variant $65, and the 1 TB variant $99.
 
Personally I believe that 99 dollars for a 1TB M.2 is very good. 
 


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#1

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    bob16314
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    Re: Western Digital Unveils WD Blue SN550 M.2 NVMe SSD 2019/12/12 00:03:42 (permalink)
    Niiiiice!
     
    $100 for 1TB and Full Specs in the WD Store.

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    Re: Western Digital Unveils WD Blue SN550 M.2 NVMe SSD 2019/12/12 00:57:51 (permalink)
    Not bad but how about 2TB @ $150? lol

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    #3
    kougar
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    Re: Western Digital Unveils WD Blue SN550 M.2 NVMe SSD 2019/12/12 01:02:51 (permalink)
    No shortage of TLC drives around $120. Even with a fast-write cache to hide the penalty I wouldn't touch a DRAM-less SSD to save 5-10 bucks.
     
    Before fast-write caches became commonplace, not having a DRAM cache on SSDs led to much higher write amplification wear in addition to the perf penalties. 


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    #4
    bob16314
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    Re: Western Digital Unveils WD Blue SN550 M.2 NVMe SSD 2019/12/12 01:50:01 (permalink)
    kougar
     
    Before fast-write caches became commonplace, not having a DRAM cache on SSDs led to much higher write amplification wear in addition to the perf penalties. 



    Yep..Just did a couple quick benches with Momentum Cache (Part of the Crucial Storage Executive Suite by Micron) disabled and enabled.
     
     

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    #5
    Hoggle
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    Re: Western Digital Unveils WD Blue SN550 M.2 NVMe SSD 2019/12/12 09:07:19 (permalink)
    It's a good price but the $129 of the 1TB Black does seem to make the slower performance of the Blue series not worth the money saved.

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    #6
    kougar
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    Re: Western Digital Unveils WD Blue SN550 M.2 NVMe SSD 2019/12/13 01:45:05 (permalink)
    Hoggle
    It's a good price but the $129 of the 1TB Black does seem to make the slower performance of the Blue series not worth the money saved.




    Not sure if that's a permanent price, it's a steep cut from the regular Amazon price. But yes, there are lots of alternatives for 110-120 that have DRAM and are not QLC. 
     
    Chopping the DRAM off only saves $5 on the cost-of-manufacture.


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    #7
    Cool GTX
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    Re: Western Digital Unveils WD Blue SN550 M.2 NVMe SSD 2019/12/13 09:33:05 (permalink)
    good for entry builds, for price conscious consumer products

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