The Silicon Power UD90 1TB wins in 4 out of 7 comparable specs. Its biggest advantage is Endurance (TBW) (275% better).
NV2 500GB wins in 1 spec (MSRP: 38% better).
Recommendation
Choose UD90 1TB if you want the best overall performance — especially endurance (tbw).
Choose NV2 500GB if msrp matters more to you.
| Spec | KingstonNV2 500GB | Silicon PowerUD90 1TB |
|---|---|---|
| Storage | ||
| Capacity | 500 GB | 1000 GB+100% |
| Type | NVMe SSD | NVMe SSD |
| Interface | PCIe Gen4 x4 | PCIe Gen4 x4 |
| Form Factor | M.2-2280 | M.2-2280 |
| NAND Type | QLC | TLC |
| Performance | ||
| Sequential Read | 3,500 MB/s | 4,800 MB/s+37% |
| Sequential Write | ||
| 2,100 MB/s |
| 4,200 MB/s+100% |
| Endurance (TBW) | 160 | 600+275% |
| Features | ||
| DRAM Cache | No | No |
| Platform | ||
| Controller | Silicon Motion SM2267XT | Phison PS5021-E21T |
| PCIe Gen | 4 | 4 |
| Price | ||
| MSRP | $28−38% | $45 |
| Release Date | Nov 2022 | Mar 2023 |
