Side-by-side specifications of the Synology DS1515 and DS925+, from official datasheets. Differences are highlighted.
| DS1515 | DS925+ | |
| CPU | Annapurna Labs Alpine AL-514 | AMD Ryzen V1500B |
| Cores / threads | 4 cores / 4 threads | 4 cores / 8 threads |
| RAM (base) | 2 GB | 4 GB DDR4 ECC SODIMM |
| RAM (max) | 2 GB | 32 GB |
| Drive bays | 5 | 4 |
| Expandable to | 15 | 5 (9 total with DX525) |
| M.2 slots | 0 | 2 NVMe |
| Network | 4 x 1GbE | 2 × 2.5GbE |
| 10GbE | no | no |
| Max raw capacity | 40 TB | 180 TB |
| Hot-swap | yes | yes |
| Form factor | Desktop | Desktop |
| Released | 2015 | 2025 |
| Power consumption | — | 37.91 W / 12.33 W |
| DSM at launch | — | — |