Side-by-side specifications of the Synology DS1813+ and DS1825+, from official datasheets. Differences are highlighted.
| DS1813+ | DS1825+ | |
| CPU | dual-core CPU | AMD Ryzen V1500B 2.2 GHz |
| Cores / threads | 2 cores / unknown threads | 4 cores / 8 threads |
| RAM (base) | 2 GB | 8 GB DDR4 ECC SODIMM |
| RAM (max) | 4 GB | 32 GB |
| Drive bays | 8 | 8 |
| Expandable to | 10 (2 DX513 units) | 10 with DX525 |
| M.2 slots | 0 | 2 x M.2 2280 NVMe |
| Network | 4 x Gigabit | 2 x 2.5GbE RJ-45 |
| 10GbE | no | optional |
| Max raw capacity | 72 TB | 200 TB single volume |
| Hot-swap | yes | yes |
| Form factor | tower | Tower |
| Released | 2013 | 2026 |
| Power consumption | 75.19 W / 34.12 W | 60.1 W / 18.34 W |
| DSM at launch | — | — |