Western Digital
WD_BLACK SN850X 1TB
A entry-level ssd for PC builders, leading with 1000 GB.
38/100
1000 GB7300 MB/sNVMe6300 MB/s600 TBWM.2 2280
£170best price at Amazon
In stock at 1 retailer
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Why we rate it
- TRIM
- S.M.A.R.T.
- Heatsink included
- Above-average sequential write
- Below-average capacity
Score profile
Scored against the ssds classWhere the WD_BLACK SN850X 1TB wins and loses
Full specification
Grouped · supported features marked in blueSpecifications
Capacity and interface
Capacity1000 GB
Form factorM.2 2280
InterfaceNVMe
PCIe generationPCIe 4.0
PCIe lanes4
Sequential performance
Sequential read7300 MB/s
Sequential write6300 MB/s
Controller and NAND
NAND typeTLC
Endurance and reliability
Endurance600 TBW
Warranty5 years
Features
TRIMYes
S.M.A.R.T.Yes
Heatsink includedYes
PS5 compatibleYes
More specs
Interface PCIEPCIe 4.0 x4
Head to head
Highlighted cell = better in that rowWD_BLACK SN850X 1TB vs Western Digital WD_BLACK SN850P 1TB
WD_BLACK SN850X 1TBWD_BLACK SN850P 1TB
| Western DigitalWD_BLACK SN850X 1TBThis page | Western DigitalWD_BLACK SN850P 1TB | |
|---|---|---|
| Overall score | 38 /100 | 38 /100 |
| Capacity | 1000 GB | 1000 GB |
| Seq read | 7300 MB/s | 7300 MB/s |
| Seq write | 6300 MB/s | 6600 MB/sBetter |
| Interface | NVMe | NVMe |
| Form factor | M.2 2280 | M.2 2280 |
| TBW | 600 TBW | 600 TBW |
Who it's for
Is the WD_BLACK SN850X 1TB 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.
excellent
Common questions
Before you buy
Is the WD_BLACK SN850X 1TB worth it?
It depends on what you need. It scores 38/100 against other ssds, a entry-level result where the class average is around 40.
What stands out on the WD_BLACK SN850X 1TB?
Its trim stands out, a genuinely useful feature if your setup calls for it.
How does it compare to the Lexar NM790 1TB?
The Lexar NM790 1TB scores 39/100 versus this one at 38/100, so it is the step up on the spec sheet.
