Crucial P310 4TB
Crucial
Current comparison price
$574Value · Balanced44
from 1 offer · checked Nov 9
Capability highlights · price excluded
- S System Drive
- S Game & File Storage
- S Heavy Creative Work
Crucial P310 4TB vs Western Digital SN7100 4TB
Compare Crucial P310 4TB and Western Digital SN7100 4TB in the United States side by side across price, specifications, capability by use case and the price at which the answer changes.
Market snapshot Nov 9, 2026 · USD
Specifications, performance and current prices compared in United States · USD · prices checked through Nov 9, 2026
Western Digital SN7100 4TB
Western Digital
Current comparison price
$600Value · Balanced49
from 1 offer · checked Nov 9
Capability highlights · price excluded
- S System Drive
- S Game & File Storage
- S Heavy Creative Work
Key differences at a glance
Capabilityprice excluded
Same grade in all 3 scenarios. View grades →
Valueunder Balanced
Western Digital SN7100 4TB has the higher Value under these priorities (49 vs 44).
Pricecurrent market snapshot
Crucial P310 4TB costs less right now ($574 vs $600, 4% apart).
How priorities change the comparison Presets with the higher Value: Crucial P310 4TB 0 · Western Digital SN7100 4TB 2 · even 2
| Priority | Crucial P310 4TB | Western Digital SN7100 4TB | |
|---|---|---|---|
| 44 | 49 | ||
| 22 | 24 | even | |
| 72 | 73 | even | |
| 42 | 55 |
Pick a preset to compare under it: the whole page follows. Within 2 points counts as even.
Price difference and break-even price
Under Balanced, each product holds or loses the higher Value at one price, with the other held at its current price. Enter the prices you were actually offered to see the answer for your deal.
Crucial P310 4TB
Current comparison price
$574 44
Crucial P310 4TB matches the Value of Western Digital SN7100 4TB (at $600) at $516 or less.
Western Digital SN7100 4TB
Current comparison price
$600 49
Western Digital SN7100 4TB keeps the higher Value up to $667 (with Crucial P310 4TB at $574).
A crossover is a calculation under the active priorities and today's market frame, not a price forecast.
Price comparison: current offers
New offers we track in United States (USD), cheapest first, with the date each was checked. Amazon appears as a link only: its price is not shown and never enters Value.
Crucial P310 4TB
- Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
- $574Crucial P310 4TBNewegg · checked · Affiliate linkGo to offer →
Western Digital SN7100 4TB
- Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
- $600Western Digital SN7100 4TBCentralComputer · checked Go to offer →
- Currently unavailable · last seen
- $590WD_BLACK SN7100 M.2 2280 4TB PCI-Express 4.0 x4 TLC 3D NAND Internal Solid State Drive (SSD) WDS400T4X0ENewegg · last seen · no longer in the retailer’s listing · Affiliate linkView listing
Affiliate links may earn us a commission. They never change the prices shown here, the ranking or Value.
Performance and key differences
What each product can do for a job, graded S to F with price left out, and the measured indexes behind it.
View full tier list and performance rankings
| Crucial P310 4TB | Western Digital SN7100 4TB | |
|---|---|---|
| System Drive | S #57 | S #63 |
| Game & File Storage | S #17 | S #18 |
| Heavy Creative Work | S #60 | S #42 |
| Drive performance | 7,100 | 7,000 |
| Sequential read | 7,100 | 7,000 |
| Sequential write | 6,000 | 6,700 |
Where each one leads
- Lower current price · Higher sequential read
- Higher Value with these priorities
Specifications compared
Facts true of every board a product groups; a range or "varies" marks a fact that differs between boards.
7 identical facts hidden
| Crucial P310 4TB | Western Digital SN7100 4TB | |
|---|---|---|
| Speed | ||
| Sequential read | 7,100 MB/s | 7,000 MB/s |
| Sequential write | 6,000 MB/s | 6,700 MB/s |
| Storage and endurance | ||
| Endurance | 800 TBW | 2,400 TBW |
| NAND type | QLC | TLC |
| Controller | Phison PS5021-E21T | SanDisk Custom |
| Product | ||
| Brand | Crucial | Western Digital |
Not tracked means the source data does not have this fact. It is not assumed to be absent.
Which one to choose: where each wins
Conditions drawn from the data above, not a universal recommendation. The better choice depends on which of these matter to you.
Crucial P310 4TB fits better when…
- Drive performance matters: higher index
- Sequential read matters: higher index
- the budget decides: 4% lower current price
- Sequential read matters: 7,100 MB/s vs 7,000 MB/s
Western Digital SN7100 4TB fits better when…
- Sequential write matters: higher index
- your priorities are Balanced: higher Value
- Sequential write matters: 6,700 MB/s vs 6,000 MB/s
- Endurance matters: 2,400 TBW vs 800 TBW
Nearby market alternative
Worth considering instead
Crucial T710 1TB — same S-tier capability for System Drive, about $344 cheaper · Value 93.
Neither of the two above is the only answer — this one clears the same bar for less. ⇄ Compare all three
Questions and methodology
Which one is better, Crucial P310 4TB or Western Digital SN7100 4TB?
It depends on the question. For capability (price left out) see the grades by use case; for how good the current price is for what you get, see Value under your priorities; and for the cheapest option today, see current prices. This page keeps the three apart and does not name one overall winner.
Which has the higher Value right now?
Under Balanced, Western Digital SN7100 4TB has the higher Value (49 vs 44) in the market snapshot of Nov 9, 2026. Value changes with your priorities and with prices.
At what price does the answer change?
Under Balanced, with Western Digital SN7100 4TB at its current price, Crucial P310 4TB reaches equal Value at $516. It is a calculation, not a price forecast.
Which one is more capable, ignoring price?
Same grade in all 3 scenarios.
Where can I compare current offers?
The offers section lists every new offer we track for both products in United States, with the date each price was checked. Open in Compare to add more products.