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Lexar NM790 vs Samsung 9100 Pro Internal SSD

The Samsung 9100 Pro is the faster drive on paper: PCIe 5.0 with NVMe 2.0, built for AI work, 4K/8K video and other heavy sequential loads. The Lexar NM790 is a PCIe 4.0 drive that runs cooler and draws less power than DRAM-based Gen4 drives, and it comes in capacities up to 8 TB, including a 4 TB option. For gaming, PS5 use and everyday creative work, the NM790 is the sensible pick. Step up to the 9100 Pro only if your motherboard has a Gen5 M.2 slot and your work actually moves large files.

  • Choose the Lexar NM790 if you want a cool-running Gen4 drive for gaming, a PS5 or general creative work, and you value the wide capacity range.
  • Choose the Samsung 9100 Pro if your board has a PCIe 5.0 M.2 slot and you move huge video or AI datasets where sequential speed matters.

Prices

  • Lexar NM790: $160.00 at eBay (last seen Nov 8)
  • Samsung 9100 Pro Internal SSD: $249.99 at Amazon (checked today)
  • Difference: the Lexar NM790 is $89.99 cheaper than the Samsung 9100 Pro Internal SSD at the latest prices (Nov 8 and Nov 10)
Lexar
Lexar NM790

Lexar NM790

4.9(4,300 ratings)
$160.00at eBayChecked Nov 8
See all prices and details
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Pros
  • Fast Gen4 speeds at 7,400 MB/s read
  • Low power draw and less heat
  • Fits desktops, laptops and PS5
  • Wide capacity range up to 8 TB
Cons
  • DRAM-less design leans on host memory
  • No Gen5 headroom
  • Sustained writes can slow once the SLC cache fills
Samsung
Samsung 1TB 9100 Pro Internal SSD Drive

Samsung 9100 Pro Internal SSD

Samsung 1TB 9100 Pro Internal SSD Drive

$249.99at AmazonChecked 3 h ago
See all prices and details
Visit Amazon

As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • PCIe 5.0 and NVMe 2.0
  • Built for AI, 4K/8K video and heavy workloads
  • Samsung controller and firmware reputation
Cons
  • Needs a Gen5 slot to pay off
  • Runs hotter and draws more power
  • Fewer capacity choices listed here

What separates them

Lexar NM790Samsung 9100 Pro Internal SSD
InterfacePCIe Gen4 x4 NVMePCIe 5.0 x4 with NVMe 2.0
Sequential readUp to 7,400 MB/sHigher Gen5 ceiling, roughly double Gen4
Cache designDRAM-less with HMB 3.0 and Dynamic SLC CacheDRAM-based controller
Power drawUp to 40% less than DRAM Gen4 SSDsHigher, typical of Gen5 drives
HeatRuns cooler, easier in laptops and PS5Needs good airflow or a heatsink
Capacity range512 GB to 8 TBListed here as 1 TB
Platform fitWorks in Gen4 and Gen3 slots, desktop, laptop, PS5Needs a Gen5 slot to reach its speed
Brand track recordValue-focused, strong ratingsSamsung's long SSD reliability record

Price history

$309.99$199.99
Nov 3Nov 10
  • Lexar NM790: lowest $199.99 on Nov 3 at Walmart; $199.99 on Nov 10.
  • Samsung 9100 Pro Internal SSD: lowest $249.99 on Nov 9 at Amazon; $249.99 on Nov 10.

Prices at every store

Lexar NM790

  • eBayNew

    Availability unknownSold by saige121 (100% positive, 5 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $160.00+ $5.39 shippingChecked Nov 8
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $199.99Free shippingChecked 3 h ago
    Visit Amazon
  • Microless.comNew

    Availability unknown

    $216.44Checked Nov 6
    Visit Microless.com
  • Technivision FZENew

    Availability unknown

    $277.81Checked Nov 3
    Visit Technivision FZE

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay

Store links may earn us a commission.

All 17 stores and price history →

Samsung 9100 Pro Internal SSD

  • DataVisionNew

    In stockReturn policy

    $2,719.99Checked 3 h ago
    Visit DataVision
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $249.99Free shippingChecked 3 h ago
    Visit Amazon
All 2 stores and price history →

Specs compared

SpecLexar NM790Samsung 9100 Pro Internal SSD
TypeInternal—
ConnectionM.2—
Form FactorM.2 2280—
ColorBlack, Gray—
NVMeYes—
Capacity512 GB, 1 TB, 2 TB, 4 TB, 8 TB—
Read Speed7,400 MB/s—
Width (")0.9—
M.2 Form Factor2280—
PlacementInternal—
Size (GB)2000—
Sequential Write (MB/s)6500—
Show all 16 specsShow fewer specs
SpecLexar NM790Samsung 9100 Pro Internal SSD
Depth (")3.1—
Sequential Read (MB/s)7400—
InterfacePCIe Gen4 x4 NVMe—
Hard Drive Capacity2—

What reviewers say

Lexar NM790

  • 4.9 / 54,300 ratings

Reviewers and owners rate the Lexar NM790 highly for its fast read speeds and compatibility with PS5 and PCs. Many praise its value, though some note that write speeds can slow during prolonged writes due to its DRAM-less design.

What people mention
  • SpeedPraisedUsers highlight the fast read speeds, especially for gaming and large file transfers.
  • PS5 compatibilityPraisedMany mention it works perfectly in the PlayStation 5 for expanded storage.
  • ValuePraisedReviewers often say it offers great performance for the price.
  • Write performanceMixedSome note that write speeds can slow during large sustained writes due to the lack of DRAM.

Samsung 9100 Pro Internal SSD

Reviewers rate the 9100 Pro among the fastest consumer SSDs, with sequential and random results near the top of the PCIe 5.0 field. They praise the low-profile single-sided build and Samsung's software, and most criticism centers on heat and the premium over Gen 4 drives.

What people mention
  • SpeedPraisedReviewers put it at or near the top of PCIe 5.0 drives in sequential and random benchmarks.
  • HeatCriticisedSustained writes push temperatures up, and reviewers say it needs airflow or a heatsink to avoid throttling.
  • BuildPraisedThe single-sided, low-profile design is noted for fitting laptops and the PS5 slot easily.
  • ValueMixedReviewers call it fast but question whether the premium over PCIe 4.0 drives pays off outside heavy workloads.
Reviews
  • The Best PCI Express NVMe Solid State Drives (SSDs) for 2026

Questions and answers

Which is better for gaming?
The NM790. Games load from random reads, where Gen4 is already fast enough, and the Lexar runs cooler. The 9100 Pro's extra sequential speed rarely shows up in game load times.
Do I need PCIe 5.0 for the Samsung?
To get its full speed, yes. In a Gen4 slot it falls back to Gen4 speeds, which puts it close to the NM790.
Which lasts longer?
Both use 3D NAND and carry multi-year warranties. Samsung has the longer track record in SSD reliability; the Lexar's DRAM-less design means less to fail but relies on host memory.
Is the 9100 Pro worth stepping up to?
Only for large sequential work like 8K video editing or AI datasets, and only with a Gen5 slot and decent cooling. For most shoppers the NM790 covers the same jobs.
Will the NM790 fit a PlayStation 5?
Yes. Lexar lists PS5 compatibility, and the M.2 2280 form factor matches the PS5 slot. Add a heatsink if your console or laptop needs one.
Does the Lexar's lack of DRAM matter?
For gaming and everyday use, no. HMB 3.0 borrows system memory for the mapping table. Heavy sustained writes are where a DRAM-based drive like the Samsung pulls ahead.

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