Especificaciones de los Synology RS818+ y RS820+ en paralelo, de las fichas técnicas oficiales. Las diferencias están resaltadas.
| RS818+ | RS820+ | |
| CPU | Intel Atom C2538, 2.4 GHz | Intel Atom C3538, 2.1 GHz |
| Núcleos / hilos | 4 cores / 4 threads | 4 cores / 4 threads |
| RAM (base) | 2 GB DDR3 non-ECC SODIMM | 2 GB DDR4 non-ECC |
| RAM (máx.) | 16 GB | 18 GB |
| Bahías | 4 | 4 |
| Ampliable a | 8 total with RX418 | 8 total with RX418 |
| Ranuras M.2 | 0 (optional M2D18 adapter) | 0 built-in; optional M2D18 via PCIe |
| Red | 4 x 1GbE RJ-45 | 4× Gigabit Ethernet |
| 10GbE | optional | optional |
| Capacidad bruta máx. | 80 TB raw with RX418 (4 x 10 TB internal plus expansion) | 56 TB raw (4×14 TB); 112 TB with RX418 |
| Intercambio en caliente | yes | yes |
| Formato | 1U rackmount | 1U rackmount |
| Lanzamiento | 2018 | 2020 |
| Consumo | 45.28 W / 20.81 W | unknown |
| DSM de lanzamiento | — | unknown |