The Samsung 9100 Pro 1TB wins in 4 out of 7 comparable specs. Its biggest advantage is Sequential Write (217% better).
UD90 1TB wins in 1 spec (MSRP: 72% better).
Recommendation
Choose 9100 Pro 1TB if you want the best overall performance — especially sequential write.
Choose UD90 1TB if msrp matters more to you.
| Spec | Samsung9100 Pro 1TB | Silicon PowerUD90 1TB |
|---|---|---|
| Storage | ||
| Capacity | 1000 GB | 1000 GB |
| Type | NVMe SSD | NVMe SSD |
| Interface | PCIe Gen5 x4 | PCIe Gen4 x4 |
| Form Factor | M.2-2280 | M.2-2280 |
| NAND Type | TLC | TLC |
| Performance | ||
| Sequential Read | 14,700 MB/s+206% | 4,800 MB/s |
| Sequential Write | 13,300 MB/s | |
| 4,200 MB/s |
| Endurance (TBW) | 600 | 600 |
| Features | ||
| DRAM Cache | Yes+100% | No |
| Platform | ||
| Controller | Samsung Piccolo | Phison PS5021-E21T |
| PCIe Gen | 5+25% | 4 |
| Price | ||
| MSRP | $160 | $45−72% |
| Release Date | Mar 2025 | Mar 2023 |
