Side-by-side specifications of the Synology DS918+ and DS925+, from official datasheets. Differences are highlighted.
| DS918+ | DS925+ | |
| CPU | Intel Celeron J3455 | AMD Ryzen V1500B |
| Cores / threads | 4-core | 4/8 |
| RAM (base) | 4 GB DDR3L | 4 GB |
| RAM (max) | 8 GB | 32 GB |
| Drive bays | 4 | 4 |
| Expandable to | 9 | 9 |
| M.2 slots | 2 | 2 |
| Network | 2 x 1GbE | 2x 2.5GbE |
| 10GbE | no | no |
| Max raw capacity | 40 TB | 180 TB |
| Hot-swap | yes | yes |
| Form factor | desktop | desktop |
| Released | 2018 | 2025 |