Lexar NM790 8TB
Lexar
Current comparison price
$2,300Value · Balanced18
from 1 offer · checked Nov 9
Capability highlights · price excluded
- S System Drive
- S Game & File Storage
- S Heavy Creative Work
Lexar NM790 8TB vs Western Digital Black SN850X 8TB
Compare Lexar NM790 8TB and Western Digital Black SN850X 8TB 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 Black SN850X 8TB
Western Digital
Current comparison price
$1,660Value · Balanced23
from 2 offers at 2 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
Western Digital Black SN850X 8TB has the higher Value under these priorities (23 vs 18).
Pricecurrent market snapshot
Western Digital Black SN850X 8TB costs less right now ($1,660 vs $2,300, 28% apart).
How priorities change the comparison Presets with the higher Value: Lexar NM790 8TB 0 · Western Digital Black SN850X 8TB 2 · even 2
| Priority | Lexar NM790 8TB | Western Digital Black SN850X 8TB | |
|---|---|---|---|
| 18 | 23 | ||
| 7 | 9 | even | |
| 34 | 46 | ||
| 35 | 35 | even |
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.
Lexar NM790 8TB
Current comparison price
$2,300 18
Lexar NM790 8TB matches the Value of Western Digital Black SN850X 8TB (at $1,660) at $1,805 or less.
Western Digital Black SN850X 8TB
Current comparison price
$1,660 23
Western Digital Black SN850X 8TB keeps the higher Value up to $2,115 (with Lexar NM790 8TB at $2,300).
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.
Lexar NM790 8TB
- Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
- $2,300Lexar NM790 8TBMemoryC · checked · Affiliate linkGo to offer →
Western Digital Black SN850X 8TB
- Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
- $1,660Best priceWestern Digital WD_Black SN850X 8TB (Heatsink)Newegg · checked · Affiliate linkGo to offer →
- $1,690Western Digital Black SN850X 8TBCentralComputer · checked Go to offer →
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
| Lexar NM790 8TB | Western Digital Black SN850X 8TB | |
|---|---|---|
| System Drive | S #29 | S #40 |
| Game & File Storage | S #2 | S #3 |
| Heavy Creative Work | S #50 | S #45 |
| Drive performance | 7,400 | 7,300 |
| Sequential read | 7,400 | 7,300 |
| Sequential write | 6,500 | 6,600 |
Where each one leads
- Higher sequential read
- Lower current price · Higher Value with these priorities · More offers
Specifications compared
Facts true of every board a product groups; a range or "varies" marks a fact that differs between boards.
5 identical facts hidden
| Lexar NM790 8TB | Western Digital Black SN850X 8TB | |
|---|---|---|
| Speed | ||
| Sequential read | 7,400 MB/s | 7,300 MB/s |
| Sequential write | 6,500 MB/s | 6,600 MB/s |
| Storage and endurance | ||
| Endurance | 4,800 TBW | 2,400 TBW |
| NAND type | YMTC 232-layer TLC | SanDisk 112-layer TLC |
| DRAM cache | DRAM-less | 8GB DDR4 |
| Controller | Maxio MAP1602A | WD Proprietary |
| Interface and fit | ||
| Heatsink included | No | varies by board |
| Product | ||
| Brand | Lexar | 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.
Lexar NM790 8TB fits better when…
- Drive performance matters: higher index
- Sequential read matters: higher index
- Sequential read matters: 7,400 MB/s vs 7,300 MB/s
- Endurance matters: 4,800 TBW vs 2,400 TBW
Western Digital Black SN850X 8TB fits better when…
- Sequential write matters: higher index
- your priorities are Balanced: higher Value
- the budget decides: 28% lower current price
- Sequential write matters: 6,600 MB/s vs 6,500 MB/s
Nearby market alternative
Worth considering instead
Crucial T710 1TB — same S-tier capability for System Drive, about $1430 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, Lexar NM790 8TB or Western Digital Black SN850X 8TB?
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 Black SN850X 8TB has the higher Value (23 vs 18) 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 Black SN850X 8TB at its current price, Lexar NM790 8TB reaches equal Value at $1805. 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.