The Silicon Power UD90 1TB wins in 4 out of 6 comparable specs. Its biggest advantage is Sequential Read (757% better).
MX500 1TB wins in 1 spec (DRAM Cache: 100% better).
Recommendation
Choose UD90 1TB if you want the best overall performance — especially sequential read.
Choose MX500 1TB if dram cache matters more to you.
| Spec | CrucialMX500 1TB | Silicon PowerUD90 1TB |
|---|---|---|
| Storage | ||
| Capacity | 1000 GB | 1000 GB |
| Type | SATA SSD | NVMe SSD |
| Interface | SATA 6 Gb/s | PCIe Gen4 x4 |
| Form Factor | 2.5" | M.2-2280 |
| NAND Type | TLC | TLC |
| Performance | ||
| Sequential Read | 560 MB/s | 4,800 MB/s+757% |
| Sequential Write | 510 MB/s | |
| 4,200 MB/s+724% |
| Endurance (TBW) | 360 | 600+67% |
| Features | ||
| DRAM Cache | Yes+100% | No |
| Platform | ||
| Controller | Silicon Motion SM2259 | Phison PS5021-E21T |
| PCIe Gen | N/A | 4 |
| Price | ||
| MSRP | $55 | $45−18% |
| Release Date | Dec 2017 | Mar 2023 |
