Western Digital
WD_BLACK SN850P 4TB
The WD_BLACK SN850P 4TB lands as a entry-level ssd, built around 4000 GB.
46/100
4000 GB7300 MB/sNVMe6600 MB/s2400 TBWM.2 2280
£340best price at Amazon
In stock at 1 retailer
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Why we rate it
- Heatsink included
- PS5 compatible
- Above-average capacity
- Above-average sequential write
- Spec-sheet rated, not bench-tested
Score profile
Scored against the ssds classWhere the WD_BLACK SN850P 4TB wins and loses
Full specification
Grouped · supported features marked in blueSpecifications
Capacity and interface
Capacity4000 GB
Form factorM.2 2280
InterfaceNVMe
PCIe generationPCIe 4.0
PCIe lanes4
Sequential performance
Sequential read7300 MB/s
Sequential write6600 MB/s
Controller and NAND
NAND typeTLC
Endurance and reliability
Endurance2400 TBW
Warranty5 years
Features
Heatsink includedYes
PS5 compatibleYes
More specs
Interface PCIEPCIe 4.0 x4
Head to head
Highlighted cell = better in that rowWD_BLACK SN850P 4TB vs Crucial Crucial T705 2TB
WD_BLACK SN850P 4TBCrucial T705 2TB
| Western DigitalWD_BLACK SN850P 4TBThis page | CrucialCrucial T705 2TB | |
|---|---|---|
| Overall score | 46 /100 | 46 /100 |
| Capacity | 4000 GBBetter | 2000 GB |
| Seq read | 7300 MB/s | 14500 MB/sBetter |
| Seq write | 6600 MB/s | 13700 MB/sBetter |
| Interface | NVMe | NVMe |
| Form factor | M.2 2280 | M.2 |
| TBW | 2400 TBWBetter | 1200 TBW |
Who it's for
Is the WD_BLACK SN850P 4TB 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.
okay
Common questions
Before you buy
Is the WD_BLACK SN850P 4TB worth it?
It depends on what you need. It scores 46/100 against other ssds, a entry-level result where the class average is around 40.
What stands out on the WD_BLACK SN850P 4TB?
Its heatsink included stands out, a genuinely useful feature if your setup calls for it.
How does it compare to the Crucial P310 2TB?
The Crucial P310 2TB scores 47/100 versus this one at 46/100, so it is the step up on the spec sheet.
You might also consider
Alternatives & similar ssds
If you want to spend less
SABRENT Rocket Enterprise PCIe 4.0 U.2 15.36TB NVMe SSD
The SABRENT Rocket Enterprise PCIe 4.0 U.2 15.36TB NVMe SSD covers the basics for less outlay.
See review →If you want the best
Crucial P310 2TB
The Crucial P310 2TB scores higher and adds headroom for demanding setups.
See review →
