Crucial T705 4TB
Crucial
Current comparison price
$620Value · Balanced62
from 2 offers at 2 retailers · checked Nov 9
Capability highlights · price excluded
- S System Drive
- S Game & File Storage
- S Heavy Creative Work
Crucial T705 4TB vs Western Digital SN8100 4TB
Compare Crucial T705 4TB and Western Digital SN8100 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 SN8100 4TB
Western Digital
Current comparison price
$746Value · Balanced53
from 3 offers at 3 retailers · 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
Crucial T705 4TB has the higher Value under these priorities (62 vs 53).
Pricecurrent market snapshot
Crucial T705 4TB costs less right now ($620 vs $746, 17% apart).
How priorities change the comparison Presets with the higher Value: Crucial T705 4TB 4 · Western Digital SN8100 4TB 0 · even 0
| Priority | Crucial T705 4TB | Western Digital SN8100 4TB | |
|---|---|---|---|
| 62 | 53 | ||
| 37 | 33 | ||
| 77 | 65 | ||
| 81 | 78 |
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 T705 4TB
Current comparison price
$620 62
Crucial T705 4TB keeps the higher Value up to $716 (with Western Digital SN8100 4TB at $746).
Western Digital SN8100 4TB
Current comparison price
$746 53
Western Digital SN8100 4TB matches the Value of Crucial T705 4TB (at $620) at $646 or less.
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 T705 4TB
- Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
- $620Best priceCrucial T705 4TBCentralComputer · checked Go to offer →
- $620Crucial T705 4TBNewegg · checked · Affiliate linkGo to offer →
- Currently unavailable · last seen
- $800Crucial T705 4TB PCIe Gen5 NVMe M.2 SSD with Heatsink- Up to 14,100 MB/s - Game Ready - Internal Solid State Drive (PC) - +1mo Adobe CC - CT4000T705SSD5Newegg · last seen · no longer in the retailer’s listing · Affiliate linkView listing
Western Digital SN8100 4TB
- Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
- $746Best priceWestern Digital SN8100 4TBNewegg · checked · Affiliate linkGo to offer →
- $900Western Digital SN8100 4TB (Heatsink)B&H · checked Go to offer →
- $900Western Digital SN8100 4TBCentralComputer · checked Go to offer →
- Currently unavailable · last seen
- $820WD_BLACK SN8100 NVMe SSD - 4TB, With Heatsink, M.2 2280 PCI-Express 5.0x4 Internal Solid State Drive (SSD), Up to 14900 MBps Read -WDS400T1XHM-00CMT0Newegg · 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 T705 4TB | Western Digital SN8100 4TB | |
|---|---|---|
| System Drive | S #17 | S #1 |
| Game & File Storage | S #9 | S #5 |
| Heavy Creative Work | S #17 | S #15 |
| Drive performance | 13,600 | 14,900 |
| Sequential read | 13,600 | 14,900 |
| Sequential write | 10,200 | 11,000 |
Where each one leads
- Lower current price · Higher Value with these priorities
- Higher sequential read · More offers
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 T705 4TB | Western Digital SN8100 4TB | |
|---|---|---|
| Speed | ||
| Sequential read | 13,600 MB/s | 14,900 MB/s |
| Sequential write | 10,200 MB/s | 11,000 MB/s – 14,000 MB/s |
| Storage and endurance | ||
| NAND type | TLC | Kioxia TLC, TLC 3D CBA NAND (varies by board) |
| DRAM cache | 4GB LPDDR4 | 4GB, 4GB LPDDR4 (varies by board) |
| Controller | Phison PS5026-E26 | Silicon Motion SM2508 |
| 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 T705 4TB fits better when…
- your priorities are Balanced: higher Value
- the budget decides: 17% lower current price
Western Digital SN8100 4TB fits better when…
- Drive performance matters: higher index
- Sequential read matters: higher index
- Sequential write matters: higher index
- Sequential read matters: 14,900 MB/s vs 13,600 MB/s
Nearby market alternative
Worth considering instead
Crucial T710 1TB — same S-tier capability for System Drive, about $390 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 T705 4TB or Western Digital SN8100 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, Crucial T705 4TB has the higher Value (62 vs 53) 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 Crucial T705 4TB at its current price, Western Digital SN8100 4TB reaches equal Value at $646. 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.