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Lexar NM990 1TB specifications and in-depth review

Lexar NM990 1TB

Manufacturer: Lexar

The Lexar NM990 1TB is a high-performance NVMe M.2 SSD offering fast data access and reliable storage. It features a DRAM cache to enhance speed and efficiency, making it suitable for demanding tasks. With a 1TB capacity, it ensures ample space for your data needs. Sequential read speeds of up to 14000 MB/s ensure rapid file transfers and seamless system performance.

This SSD is built with 8 controller channels and operates on PCIe 5.0 technology, ensuring top-tier speed and connectivity. It has a Terabytes Written (TBW) rating of 750, an MTBF of 1.5 million hours, and comes with a 5-year warranty for long-lasting reliability. The maximum operating temperature is 70°C, and it offers shock resistance up to 1500G, ensuring durability in harsh conditions.

Pros
  • High sequential read speed of 14000 MB/s for fast data transfer.
  • Equipped with a DRAM cache, improving data access and overall speed.
  • Shock resistance up to 1500G, providing durability under physical stress.
  • 5-year warranty offering long-term reliability and peace of mind.
  • 8 controller channels ensure efficient data management for improved performance.
Cons
  • Does not include an integrated heatsink, which may limit cooling efficiency in high-demand environments.
  • Lacks RGB lighting, which may be a downside for users seeking aesthetic features.
Who is this for?

The Lexar NM990 1TB is ideal for users who require high-speed storage for demanding tasks like gaming, video editing, or data-heavy applications. With its sequential read speed of 14000 MB/s and random read speed of 1600000 IOPS, it is well-suited for those who need fast data access and quick file transfers. Its DRAM cache further improves performance, making it an excellent choice for power users and professionals who value efficiency and speed.

Who is this NOT for?

This SSD may not be suitable for users who require additional cooling solutions, as it does not come with an integrated heatsink. While its maximum operating temperature of 70°C is standard, users in high-performance environments or systems with limited airflow might experience thermal throttling. Additionally, the absence of RGB lighting could be a downside for those looking to build a visually customized setup.

Read speed:

sequential read speed 14000 MB/s
random read speed 1600000 IOPS

The Lexar NM990 1TB offers impressive read speeds with a sequential read speed of up to 14000 MB/s, making it ideal for tasks requiring fast data access. Additionally, it delivers a strong random read speed of 1600000 IOPS, ensuring efficient handling of smaller, non-sequential data operations.

Write speed:

sequential write speed 7500 MB/s
random write speed 1000000 IOPS

The Lexar NM990 1TB delivers strong write performance with a sequential write speed of up to 7500 MB/s, ensuring fast data transfers during large file operations. It also offers a reliable random write speed of 1000000 IOPS, which is essential for handling smaller, non-sequential write tasks efficiently.

Benchmarks:

General info:

type M2
SSD cache DRAM cache
Is an NVMe SSD ✓
internal storage 1000GB
release date June 2025
PCI Express (PCIe) version 5
Controller channels 8
Terabytes Written (TBW) 750
MTBF 1.5million hours
warranty period 5 years
Has an integrated heatsink ✕
maximum operating temperature 70 °C
shock resistance 1500G
has RGB lighting ✕

The Lexar NM990 1TB is an M.2 NVMe SSD with a total capacity of 1000GB, providing ample storage for a wide range of applications. It utilizes a DRAM cache for improved speed and features 8 controller channels, ensuring efficient data management. With a 5-year warranty and a TBW of 750, it offers durability for heavy usage. The SSD also has a shock resistance of up to 1500G and can operate at temperatures as high as 70°C, making it reliable under various conditions.

Final Verdict

The Lexar NM990 1TB is a high-performance NVMe M.2 SSD designed for users who require fast and reliable storage. With its impressive sequential read speed of up to 14000 MB/s and a solid 5-year warranty, it excels in demanding environments where speed and durability are critical. While it lacks an integrated heatsink and RGB lighting, its robust shock resistance and efficient data handling make it a solid choice for professionals, gamers, and content creators seeking reliable storage without unnecessary frills.