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Acer FA100 vs Lexar NM790: Comparison
What is the difference between Acer FA100 and Lexar NM790?
The gap that matters here is sequential read: Acer FA100 3300 MB/s against Lexar NM790 7400 MB/s, which puts Lexar NM790 55% ahead. The benchmark result agrees. Speed Score puts Lexar NM790 17% ahead, 7.7 against 6.4. Lexar NM790 also leads on sequential write, 2700 MB/s on the Acer FA100 versus 6500 MB/s on the Lexar NM790. Bus interface is not the same on both, PCIe 3.0 x4 on the Acer FA100 versus PCIe 4.0 x4, NVMe on the Lexar NM790. They differ on nand type too, TLC on the Acer FA100 versus TLC, DRAM-Less with Host Memory Buffer on the Lexar NM790.
Acer FA100 vs Lexar NM790: which one fits your build
The Acer FA100 is the one to take for everyday storage use where 3300 MB/s reads are fast enough. It also earns its place with budget laptop or desktop upgrades wanting 2000 GB on a PCIe 3.0 x4 M.2 slot. Avoid it for buyers wanting PCIe 4.0 performance, as this drive is limited to 3300 MB/s reads. The Lexar NM790 suits budget-conscious gaming builds and PS5 storage expansion, though it is not the pick for sustained heavy write workloads and professional workstation use. Our rating of the Lexar NM790 (8.2/10): one of the best value flagship-speed drives available, though the DRAM-less design trades some sustained-write consistency.
Specs and benchmarks
Speed Score
- Acer FA100
- 6.4/10-17%
- Lexar NM790
- 7.7/10Best
How fast this drive is, rated from its read and write speeds, cache and NAND type. 10 is the fastest.
Brand
- Acer FA100
- Acer
- Lexar NM790
- Lexar
Model Number
- Acer FA100
- Acer FA100 (Micron B47R)
- Lexar NM790
- NM790
Series
- Acer FA100
- FA100
- Lexar NM790
- NM790
Bus Interface
- Acer FA100
- PCIe 3.0 x4
- Lexar NM790
- PCIe 4.0 x4, NVMe
Sequential Read
- Acer FA100
- 3300 MB/s-55%
- Lexar NM790
- 7400 MB/s
Sequential Write
- Acer FA100
- 2700 MB/s-58%
- Lexar NM790
- 6500 MB/s
NAND Type
- Acer FA100
- TLC
- Lexar NM790
- TLC, DRAM-Less with Host Memory Buffer
Which one should you pick?
Choose Acer FA100 if you already have it on hand or find it at a lower price.
Choose Lexar NM790 if you want the higher speed score (7.7 vs 6.4), the higher sequential read (7400 MB/s vs 3300 MB/s) and the higher sequential write (6500 MB/s vs 2700 MB/s).
Price comparison
| Retailer | Acer FA100 | Lexar NM790 |
|---|---|---|
| Amazon | View on Amazon | |
| Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
Lexar NM790
8.2 / 10 Expert Rating
One of the best value flagship-speed drives available, though the DRAM-less design trades some sustained-write consistency.




