The Western Digital WD Black SN850X 1TB wins in 3 out of 7 comparable specs. Its biggest advantage is MSRP (20% better).
Rocket 4 Plus 1TB wins in 1 spec (Endurance (TBW): 17% better).
Recommendation
Choose WD Black SN850X 1TB if you want the best overall performance — especially msrp.
Choose Rocket 4 Plus 1TB if endurance (tbw) matters more to you.
| Spec | SabrentRocket 4 Plus 1TB | Western DigitalWD Black SN850X 1TB |
|---|---|---|
| Storage | ||
| Capacity | 1000 GB | 1000 GB |
| Type | NVMe SSD | NVMe SSD |
| Interface | PCIe Gen4 x4 | PCIe Gen4 x4 |
| Form Factor | M.2-2280 | M.2-2280 |
| NAND Type | TLC | TLC |
| Performance | ||
| Sequential Read | 7,000 MB/s | 7,300 MB/s+4% |
| Sequential Write | 5,300 MB/s | |
| 6,300 MB/s+19% |
| Endurance (TBW) | 700+17% | 600 |
| Features | ||
| DRAM Cache | Yes | Yes |
| Platform | ||
| Controller | Phison PS5018-E18 | WD in-house |
| PCIe Gen | 4 | 4 |
| Price | ||
| MSRP | $100 | $80−20% |
| Release Date | Nov 2020 | Aug 2022 |
