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Acer FA100 vs Western Digital WD_BLACK SN850: Comparison
Acer FA100 and Western Digital WD_BLACK SN850 differ on bus interface: Acer FA100 at PCIe 3.0 x4, Western Digital WD_BLACK SN850 at PCIe 4.0 x4. They match on drive type and form factor.
Specs
| Specification |  |  |
|---|---|---|
| Brand | Acer | Western Digital |
| Model Number | Acer FA100 (Micron B47R) | SN850 |
| Series | FA100 | WD_BLACK SN850 |
| Drive Type | Internal | Internal |
| Bus Interface | PCIe 3.0 x4 | PCIe 4.0 x4 |
| Form Factor | M.2 2280 | M.2 2280 |
| Sequential Read | 3300 MB/s-53% | 7000 |
| Sequential Write | 2700 MB/s-49% | 5300 |
| DRAM Cache | DRAM-less (HMB) | DRAM |
| NAND Type | TLC | TLC with DRAM Cache |
Verdict
Western Digital WD_BLACK SN850
7.8 / 10 Expert Rating
A genuinely strong PCIe 4.0 drive that's been surpassed by its own successor.