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Acer FA100 vs Western Digital WD_BLACK SN770M: Comparison
Acer FA100 and WD_BLACK SN770M separate most on sequential write: Acer FA100 at 2,700 MB/s, WD_BLACK SN770M at 4,850 MB/s, 44% in favor of WD_BLACK SN770M. Sequential Read splits them by another 36%, again favoring WD_BLACK SN770M.
Which is better, Acer FA100 or Western Digital WD_BLACK SN770M?
On paper, WD_BLACK SN770M has the edge on sequential write, at 4,850 MB/s vs Acer FA100 at 2,700 MB/s.
What is the main difference between Acer FA100 and Western Digital WD_BLACK SN770M?
The WD_BLACK SN770M is the stronger choice on paper: it has 1.6x the sequential read (5,150 MB/s vs 3,300 MB/s), which speeds up big file copies and game installs.
Specs and benchmarks
Speed Score
- Acer FA100
- 6.4/10-9%
- Western Digital WD_BLACK SN770M
- 7.0/10Best
How fast this drive is, rated from its read and write speeds, cache and NAND type. 10 is the fastest.
Brand
- Acer FA100
- Acer
- Western Digital WD_BLACK SN770M
- Western Digital
Model Number
- Acer FA100
- Acer FA100 (Micron B27B)
- Western Digital WD_BLACK SN770M
- SN770M
Series
- Acer FA100
- FA100
- Western Digital WD_BLACK SN770M
- WD_BLACK SN770M
Drive Type
- Acer FA100
- Internal
- Western Digital WD_BLACK SN770M
- Internal
Bus Interface
- Acer FA100
- PCIe 3.0 x4
- Western Digital WD_BLACK SN770M
- PCIe 4.0 x4, NVMe (M.2 2230)
Form Factor
- Acer FA100
- M.2 2280
- Western Digital WD_BLACK SN770M
- M.2 2230
Sequential Read
- Acer FA100
- 3300 MB/s-36%
- Western Digital WD_BLACK SN770M
- 5150 MB/s
Sequential Write
- Acer FA100
- 2700 MB/s-44%
- Western Digital WD_BLACK SN770M
- 4850 MB/s
DRAM Cache
- Acer FA100
- DRAM-less (HMB)
- Western Digital WD_BLACK SN770M
- DRAM-less with HMB
NAND Type
- Acer FA100
- TLC
- Western Digital WD_BLACK SN770M
- TLC, DRAMless
Which one should you pick?
Choose Acer FA100 if you already have it on hand or find it at a lower price.
Choose WD_BLACK SN770M if you want the higher speed score (7.0 vs 6.4), the higher sequential read (5150 MB/s vs 3300 MB/s) and the higher sequential write (4850 MB/s vs 2700 MB/s).




