Samsung 9100 PRO 4TB
Samsung
Current comparison price
CAD 1,145Value · Balanced100
from 3 offers at 2 retailers · checked Oct 29
Capability highlights · price excluded
- S System Drive
- S Game & File Storage
- S Heavy Creative Work
Samsung 9100 PRO 4TB vs Western Digital SN8100 4TB
Compare Samsung 9100 PRO 4TB and Western Digital SN8100 4TB in Canada side by side across price, specifications, capability by use case and the price at which the answer changes.
Market snapshot Oct 29, 2026 · CAD
Specifications, performance and current prices compared in Canada · CAD · prices checked through Oct 29, 2026
Western Digital SN8100 4TB
Western Digital
Current comparison price
CAD 1,120Value · Balanced97
from 1 offer · checked Oct 29
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
Samsung 9100 PRO 4TB has the higher Value under these priorities (100 vs 97).
Pricecurrent market snapshot
Western Digital SN8100 4TB costs less right now (CAD 1,120 vs CAD 1,145, 2% apart).
How priorities change the comparison Presets with the higher Value: Samsung 9100 PRO 4TB 3 · Western Digital SN8100 4TB 0 · even 1
| Priority | Samsung 9100 PRO 4TB | Western Digital SN8100 4TB | |
|---|---|---|---|
| 100 | 97 | ||
| 92 | 83 | ||
| 76 | 77 | even | |
| 92 | 80 |
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.
Samsung 9100 PRO 4TB
Current comparison price
CAD 1,145 100
Samsung 9100 PRO 4TB keeps the higher Value up to CAD 1,198 (with Western Digital SN8100 4TB at CAD 1,120).
Western Digital SN8100 4TB
Current comparison price
CAD 1,120 97
Western Digital SN8100 4TB matches the Value of Samsung 9100 PRO 4TB (at CAD 1,145) at CAD 1,071 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 Canada (CAD), cheapest first, with the date each was checked. Amazon appears as a link only: its price is not shown and never enters Value.
Samsung 9100 PRO 4TB
- Check on AmazonBest priceSamsung 9100 PRO 4TB (Heatsink)Amazon · checked Go to offer →
- CAD 1,195Samsung 9100 PRO 4TB (Heatsink)Newegg · checked · Affiliate linkGo to offer →
- CAD 1,530Samsung 9100 PRO 4TBNewegg · checked · Affiliate linkGo to offer →
- Currently unavailable · last seen
- CAD 1,575SAMSUNG SSD 9100 PRO 4TB, PCIe 5.0x4 M.2 2280, Seq. Read Speeds Up to 14,800MB/s, Best for AI Computing, Gaming, and Heavy Duty Workstations (MZ-VAP4T0B/AM)Newegg · 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 →
- CAD 1,120Western Digital SN8100 4TBNewegg · checked · Affiliate linkGo to offer →
- Currently unavailable · last seen
- CAD 1,405WD_BLACK SN8100 NVMe SSD - 4TB, With Heatsink, M.2 2280 PCI-Express 5.0 x4 Internal Solid State Drive (SSD) 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
| Samsung 9100 PRO 4TB | Western Digital SN8100 4TB | |
|---|---|---|
| System Drive | S #3 | S #1 |
| Game & File Storage | S #5 | S #4 |
| Heavy Creative Work | S #3 | S #6 |
| Drive performance | 14,800 | 14,900 |
| Sequential read | 14,800 | 14,900 |
| Sequential write | 13,400 | 11,000 |
Where each one leads
- Higher Value with these priorities · More offers
- Lower current price · Higher sequential read
Specifications compared
Facts true of every board a product groups; a range or "varies" marks a fact that differs between boards.
6 identical facts hidden
| Samsung 9100 PRO 4TB | Western Digital SN8100 4TB | |
|---|---|---|
| Speed | ||
| Sequential read | 14,800 MB/s | 14,900 MB/s |
| Sequential write | 13,400 MB/s | 11,000 MB/s |
| Storage and endurance | ||
| NAND type | Samsung TLC V-NAND | Kioxia TLC |
| DRAM cache | 4GB LPDDR4 | 4GB |
| Controller | Samsung Presto (5nm) | Silicon Motion SM2508 |
| Interface and fit | ||
| Heatsink included | varies by board | No |
| Product | ||
| Brand | Samsung | 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.
Samsung 9100 PRO 4TB fits better when…
- Sequential write matters: higher index
- your priorities are Balanced: higher Value
- Sequential write matters: 13,400 MB/s vs 11,000 MB/s
Western Digital SN8100 4TB fits better when…
- the budget decides: 2% lower current price
- Sequential read matters: 14,900 MB/s vs 14,800 MB/s
Nearby market alternative
Worth considering instead
Samsung 9100 PRO 2TB — same S-tier capability for System Drive, about CAD 371 cheaper · Value 92.
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, Samsung 9100 PRO 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, Samsung 9100 PRO 4TB has the higher Value (100 vs 97) in the market snapshot of Oct 29, 2026. Value changes with your priorities and with prices.
At what price does the answer change?
Under Balanced, with Samsung 9100 PRO 4TB at its current price, Western Digital SN8100 4TB reaches equal Value at CAD 1071. 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 Canada, with the date each price was checked. Open in Compare to add more products.