Western DigitalReleased 2022
WD Black SN850X 2TB NVMe SSD
A entry-level ssd for PC builders, leading with 2000 GB.
32/100
2000 GB7300 MB/sNVMe6600 MB/s1200000 IOPS1200 TBW
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Why we rate it
- DRAM cache
- TRIM
- S.M.A.R.T.
- Above-average sequential write
- Below-average random read (4k q32)
Score profile
Scored against the ssds classWhere the WD Black SN850X 2TB NVMe SSD wins and loses
Full specification
Grouped · supported features marked in blueSpecifications
Capacity and interface
Capacity2000 GB
Form factorM.2 2280
InterfaceNVMe
PCIe generationPCIe 4.0
PCIe lanes4
Sequential performance
Sequential read7300 MB/s
Sequential write6600 MB/s
Random performance
Random read (4K Q32)1200000
Random write (4K Q32)1100000
Controller and NAND
ControllerSanDisk proprietary
NAND typeBiCS5 (112-layer) 3-bit TLC
DRAM cacheYes
DRAM cache size2048 MB
Host memory bufferNo
Endurance and reliability
Endurance1200 TBW
MTBF1750000 hours
Warranty5 years
Features
Hardware encryptionAES 256-bit
TRIMYes
S.M.A.R.T.Yes
Heatsink includedNo
PS5 compatibleYes
Watch it in action
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Head to head
Highlighted cell = better in that rowWD Black SN850X 2TB NVMe SSD vs Sabrent Sabrent Rocket 5 2TB NVMe SSD
WD Black SN850X 2TB NVMe SSDSabrent Rocket 5 2TB NVMe SSD
| Western DigitalWD Black SN850X 2TB NVMe SSDThis page | SabrentSabrent Rocket 5 2TB NVMe SSD | |
|---|---|---|
| Overall score | 32 /100 | 39 /100Better |
| Capacity | 2000 GB | 2000 GB |
| Seq read | 7300 MB/s | 14000 MB/sBetter |
| Seq write | 6600 MB/s | 12000 MB/sBetter |
| Interface | NVMe | NVMe 2.0 |
| Form factor | M.2 2280 | M.2 2280 |
| TBW | 1200 TBW | 1400 TBWBetter |
Who it's for
Is the WD Black SN850X 2TB NVMe SSD right for you?
Buy it if
Buyers on a budget
Anyone who needs a dependable ssd for the essentials without overspending.
Skip it if
Skip it if
You need flagship-tier performance, in which case a higher-tier ssd is the better call.
Performance builder
Chasing frames and headroom in a high-end rig.
okay
Mainstream builder
Wants strong value in a balanced build.
good
Budget builder
Stretching every pound in an entry rig.
good
Common questions
Before you buy
Is the WD Black SN850X 2TB NVMe SSD worth it?
It depends on what you need. It scores 32/100 against other ssds, a entry-level result where the class average is around 40.
What stands out on the WD Black SN850X 2TB NVMe SSD?
Its dram cache stands out, a genuinely useful feature if your setup calls for it.
How does it compare to the Integral SSD 256GB NVMe M.2 PCIe Gen3?
The Integral SSD 256GB NVMe M.2 PCIe Gen3 scores 33/100 versus this one at 32/100, so it is the step up on the spec sheet.
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