
Lexar
Lexar 1TB NM790 Internal NVMe SSD, 7400/6500 MB/s, M.2 2280, PCIe Gen 4x4 | Compatible w/ PS5, Gamers & Content Creators, PC & Laptops, SLC Cache, Single-Sided Design, LNM790X001T-RNNNU
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Highlights
- [1TB] Exceptional performance up to 7400MB/s read, 6500MB/s write; 1000TBW
- 2x faster than PCIe Gen 3 SSDs
- Up to 40% less power consumption than DRAM cache-enabled PCIe Gen 4 SSDs
- Host Memory Buffer (HMB) 3.0 activates the DRAM cache function of your device for a smoother transfer speed and seamless performance
- Designed for hardcore gamers, professionals, and creators
Why You'll Love It
- Read speeds up to 7400MB/s and write speeds up to 6500MB/s support demanding storage workloads
- A 1TB capacity gives gamers and creators room to organize files and active projects
- PCIe Gen 4 performance offers up to twice the speed of PCIe Gen 3 SSDs
- Host Memory Buffer 3.0 supports smoother transfers by using the device's memory for cache functionality
- Designed to use up to 40% less power than DRAM cache enabled PCIe Gen 4 SSDs
- A single sided design suits shoppers considering this drive for compatible gaming and computing setups
Pros
- +High advertised read and write speeds
- +1TB storage capacity
- +PCIe Gen 4x4 interface
- +Host Memory Buffer 3.0 support
- +Single sided design
Cons
- -Performance depends on the capabilities of the host device
- -Host Memory Buffer design instead of dedicated DRAM cache
- -One terabyte may not suit every storage workload
Detailed Review
The Lexar NM790 is a 1TB NVMe SSD aimed at gamers, content creators, and professionals who want fast storage for a compatible computer or gaming setup. Its main selling point is the advertised sequential performance: read speeds of up to 7400MB/s and write speeds of up to 6500MB/s. Those figures make speed a central part of the buying decision, particularly for shoppers choosing storage around demanding work or gaming needs. The capacity also offers a defined amount of space to plan around, rather than leaving the storage decision entirely open ended.
The drive uses a PCIe Gen 4x4 interface and is advertised as up to twice as fast as PCIe Gen 3 SSDs. That comparison gives shoppers a useful starting point when evaluating an upgrade from an older interface. The quoted speeds are maximum figures, however, rather than a promise that every device or workload will reach them. If your main priority is fast transfers, the NM790's stated performance is worth considering, but your intended system and use should guide the decision.
Another important design choice is Host Memory Buffer 3.0, which the seller describes as activating the device's memory for cache functionality. Lexar positions this approach as a way to support smoother transfer speeds and performance. The product also claims up to 40% lower power consumption than DRAM cache enabled PCIe Gen 4 SSDs. These are specific design and performance claims, not guarantees that every workload will experience the same results. Buyers should weigh them alongside their own priorities rather than judging a drive by peak speed alone.
The NM790 has a single sided design and a stated endurance rating of 1000TBW. Its product name also identifies compatibility with PS5, gamers, content creators, PCs, and laptops. These details make the intended audience clear, but choosing the right storage still requires checking the exact device and its requirements. A 1TB drive is a defined capacity choice, so shoppers planning particularly large collections of games or substantial creative projects should decide whether that amount meets their needs.
Verdict: This NVMe SSD is a strong candidate for shoppers who prioritize high advertised transfer speeds, want 1TB of storage, and have a compatible PCIe Gen 4 setup. Consider another storage option if your device cannot use its interface, you need more capacity, or you specifically prefer a design with dedicated DRAM cache.
Who Should Buy It
A great fit if you:
- You are planning a storage upgrade and want advertised read and write speeds that support demanding gaming or creative workloads.
- You need 1TB of storage for a collection of files, games, or active projects and have checked that this capacity suits your plans.
- You are choosing storage for a compatible PC or laptop and want a PCIe Gen 4x4 drive.
- You are considering a compatible PS5 setup and want to evaluate an SSD specifically identified for that use.
Consider something else if you:
- You expect to store more than 1TB of content and would benefit from a higher capacity model instead.
- You specifically want dedicated DRAM cache, or your device cannot support this drive, and would be better served by a different cache design or compatible interface.
Before You Buy
Confirm on the listing:
- Check that your intended PC, laptop, or PS5 setup supports this particular NVMe SSD and its PCIe Gen 4x4 interface.
- Verify the physical fit for your device, including the M.2 2280 format named in the product details and whether its single sided design suits the available space.
- Review what is included with the drive and whether your intended setup requires anything beyond the listed product.
- Confirm that 1TB is enough for your planned games, files, and creative projects, and review any device specific requirements before purchasing.
How to compare your options: Start with compatibility, capacity, and the transfer speeds relevant to your workload. The NM790 advertises up to 7400MB/s reads and 6500MB/s writes, PCIe Gen 4x4 connectivity, and Host Memory Buffer 3.0. Also consider its cache approach and claimed power consumption advantage if those factors matter to your decision. Compare specifications on the same basis, and check whether each drive suits your actual device rather than choosing by peak speed alone.
Getting the Most From It
Begin by confirming that the device you intend to use supports the NM790 and its stated interface and form factor. Check the product instructions and your device's guidance before making any installation decisions. If you are considering it for a PS5, PC, or laptop, make sure the exact setup is compatible rather than relying only on the general product description.
Plan your storage around the 1TB capacity. Decide which games, work files, and creative projects belong on the drive before moving content, so the available space serves your main priorities. If you expect your storage needs to grow, consider that future requirement when deciding whether this capacity is appropriate.
Keep the advertised speed figures in perspective when evaluating your setup. The stated maximum read and write speeds are useful comparison points, but they should not be treated as guaranteed results for every transfer or application. Consider your actual workload and the capabilities of the host device when judging whether the drive meets your expectations.
Follow the relevant manufacturer instructions for installation, handling, and ongoing care. If documentation accompanies the drive, use it to guide setup and any recommended maintenance. Keep your important files managed according to your own storage needs, and review available capacity periodically as your collection of games, projects, and other content changes.
FAQ
Is the Lexar NM790 compatible with PS5?
Yes, the product name identifies PS5 compatibility. Confirm that your particular setup meets the requirements for this specific SSD before purchasing.
What capacity does this SSD offer?
It offers 1TB of storage. Consider the size of your game collection, files, and creative projects to decide whether that capacity is enough.
How fast is the Lexar NM790?
Its advertised maximum speeds are 7400MB/s for reading and 6500MB/s for writing. Actual results depend on the workload and host device, so treat these figures as performance specifications rather than guaranteed speeds.
Does this SSD have dedicated DRAM cache?
No dedicated DRAM cache is identified in the listed design. Instead, the seller highlights Host Memory Buffer 3.0, which uses the device's memory for cache functionality.
What comes in the box, and how do I install it?
The product information does not state the complete box contents or provide installation steps. Check the current listing and the relevant device instructions to confirm what is supplied and how the drive should be installed for your setup.
Product Details
| Brand | Lexar |
| ASIN | B0C9213GBX |






