Lexar NM1090 Pro 1TB PCIe 5.0 NVMe SSD Review (2026)
The Lexar NM1090 Pro 1TB is the entry capacity of Lexar's PCIe 5.0 flagship line, pairing a Silicon Motion SM2508 controller with Micron 232-layer TLC for 11,700 MB/s sequential reads.
Controller & Memory
The Lexar NM1090 Pro is the brand's PCIe 5.0 flagship, and reviewers have singled it out as one of the more affordable ways onto the Gen5 platform without giving up the modern controller and NAND. The 1 TB model reviewed here is the entry capacity of a range that runs up to 4 TB (and beyond in some regions), and it pairs a Silicon Motion SM2508 8-channel controller with Micron 232-layer 3D TLC NAND and a DRAM cache. That is the same SM2508 plus Micron TLC recipe used by several well-regarded 2025 Gen5 drives, which makes the hardware story well understood even where Lexar's own marketing is thin.
The important nuance on the 1 TB is that it is the slower of the family. Lexar rates the 1 TB at up to 11,700 MB/s sequential read and 10,000 MB/s sequential write, with around 1.65 million random read and 1.8 million random write IOPS, whereas the 2 TB and 4 TB reach the lineup's headline 14,000 MB/s reads. This capacity-versus-speed trade-off is normal for Gen5: the smaller variant gives up some peak bandwidth to the larger ones because it has fewer NAND die in parallel. The 1 TB still carries a 700 TBW endurance rating, a DRAM cache and a five-year warranty, so the underlying platform is fully featured even at the entry size.
The drive ships in a standard M.2 2280 form factor, with a heatsink or heatsink-plus-fan option on some SKUs. As a value-leaning Gen5 part it competes with other SM2508 and E26 flagships such as the Crucial T705, the Kioxia Exceria Pro G2 and the Netac NV150HK, all sharing broadly comparable hardware. For buyers who want genuine PCIe 5.0 performance and a proven TLC-plus-DRAM platform at the lowest capacity and price, the NM1090 Pro 1 TB is a credible entry into Gen5, with the usual note that the 2 TB is the variant to pick for peak headline speed.
Storage Comparisons:
NM1090 Performance & Benchmarks
Lexar rates the NM1090 Pro 1 TB at up to 11,700 MB/s sequential read and 10,000 MB/s sequential write, with around 1,650,000 random read and 1,800,000 random write IOPS. Those are strong PCIe 5.0 figures, though the 1 TB sits below the lineup's 2 TB and 4 TB models, which reach the headline 14,000 MB/s reads thanks to more NAND die in parallel. In day-to-day use the 1 TB still delivers a clear step up over PCIe 4.0 for large-file transfers, game library moves and DirectStorage-enabled workloads, while for ordinary booting and browsing the gap to a good Gen4 drive is smaller than the raw numbers suggest.
Lexar NM1090 1 TB vs M.2 5.0 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 5.0 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- Corsair MP700 Pro XT 1 TB: 14,900 MB/s read, 14,200 MB/s write
- Corsair MP700 Pro XT 2 TB: 14,900 MB/s read, 14,500 MB/s write
- Corsair MP700 Pro XT 4 TB: 14,900 MB/s read, 14,400 MB/s write
- Crucial T710 1 TB: 14,900 MB/s read, 13,800 MB/s write
- Lexar NM1090 1 TB (this drive): 11,700 MB/s read, 10,000 MB/s write
Gen5 earns its keep in sustained throughput and high-queue-depth random performance, where the SM2508 controller and its roughly 1.65 million random read IOPS hold up well. The SM2508 is one of the more efficient PCIe 5.0 designs, which helps the NM1090 Pro hold its peak performance under sustained loads rather than throttling as aggressively as some early Gen5 parts. Independent reviewers confirm the NM1090 Pro reaches its advertised sequential figures and behaves as a solid, efficient flagship, which is the basis for its affordable-Gen5 reputation. For a 1 TB boot and game drive on a PCIe 5.0 platform, it delivers genuine Gen5 performance with the expected capacity caveat.
Lexar NM1090 vs Competitors
See how the NM1090 stacks up against other M.2 5.0 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Lexar backs the NM1090 Pro with a five-year limited warranty, and the 1 TB model carries a 700 TBW (terabytes written) endurance rating. That matches other PCIe 5.0 flagships: 700 TBW works out to roughly 383 GB of writes every single day for five years, far beyond a typical 20 to 50 GB daily consumer workload. At 50 GB of writes per day you would need around 38 years to exhaust the rated endurance, so the NAND will outlast the warranty term by a wide margin and wear is not a realistic concern for gaming or everyday use. The five-year term is the binding limit, and it matches the coverage on competing Gen5 drives. Lexar is an established brand with a global support and RMA network, which is reassuring on a drive likely to hold an operating system and a game library, so keep your proof of purchase and register the drive if prompted.
Lexar NM1090 1 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 1 TB |
| Interface [?] | M.2 5.0 |
| Controller [?] | Silicon Motion SM2508 8 Channel |
| Memory type [?] | Micron 232-L TLC |
| DRAM [?] | Yes |
| Read speed (MB/s) [?] | 11700 |
| Write speed (MB/s) [?] | 10000 |
| Read IOPS [?] | 1650000 |
| Write IOPS [?] | 1800000 |
| Endurance (TBW) [?] | 700 |
| MTBF (million hours) [?] | 1500000 |
| Warranty (years) [?] | 5 |
Verdict: Is the NM1090 Worth It in 2026?
The Lexar NM1090 Pro 1 TB is a credible, affordable entry into the PCIe 5.0 class on the proven Silicon Motion SM2508 plus Micron 232-layer TLC platform, backed by a DRAM cache, a 700 TBW rating and a five-year warranty. Its strengths are genuine Gen5 performance, an efficient controller and aggressive pricing for the segment. Its main caveat is that the 1 TB is the slower capacity, giving up peak speed to the 2 TB and 4 TB models, so buyers chasing the headline 14,000 MB/s should step up. It suits someone who wants a real Gen5 boot and game drive at the lowest price; skip it if your board only supports PCIe 4.0, since you would pay for Gen5 headroom you cannot use, or if you want the lineup's full flagship speed, in which case the 2 TB is the pick.
+ Pros
- PCIe 5.0 Silicon Motion SM2508 platform
- Micron 232-layer 3D TLC NAND
- DRAM cache for sustained performance
- 11,700 MB/s sequential read on the 1 TB
- Affordable entry into the Gen5 class
- 5-year warranty
- Cons
- 1 TB is slower than the 2 TB and 4 TB models
- Needs a PCIe 5.0 platform to justify the speed
- Premium over a comparable PCIe 4.0 drive
- No heatsink on the base SKU
Buy this or similar SSD Storage:
Video Review
Lexar NM1090 Pro Review - The Best Gen 5 SSD?
