Synology DS225+ vs Synology DS725+
Two of the compact nas (1–3 bays) in our best compact nas (1–3 bays, 2026) comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: 2 official bays, 2 GB official installed memory, 2.5GbE official onboard Ethernet, 4-core official CPU
Check price at AmazonBest for: 2 official bays, 4 GB official installed memory, 2.5GbE official onboard Ethernet, 2-core official CPU
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Synology DS225+ | Synology DS725+ | Weight |
|---|---|---|---|
| Installed system memoryOfficial installed system memory published on the maker's specification table. A larger official figure is better for running services alongside file storage. Missing values take the category minimum. | 2 GB | 4 GB | 28% |
| Fastest official onboard EthernetFastest official onboard Ethernet port speed on the maker's specification table, in gigabits per second. Optional ports that the official table lists only as PCIe or add-in-card upgrades are not counted. Missing values take the category minimum. | 2.5 Gbps | 2.5 Gbps | 26% |
| Official CPU core countOfficial CPU core count published on the maker's specification table. Core count is not a complete performance picture across ARM and x86 designs, but it is a consistently published official figure. Missing values take the category minimum. | 4 | 2 | 24% |
| Official onboard Ethernet portsNumber of official onboard Ethernet ports on the maker's specification table. Missing values take the category minimum. | 2 | 2 | 22% |
| Drive bays (official table) | 2 official bays — 2 × 3.5" SATA HDD or 2.5" SATA SSD | 2 official bays — 2 × 3.5" SATA HDD or 2.5" SATA SSD 2 × M.2 2280 NVMe SSD | info |
| Installed system memory (official table) | 2 GB DDR4 non-ECC | 4 GB DDR4 ECC SODIMM | info |
| Maximum memory capacity (official table) | 6 GB (2 GB + 4 GB) | 32 GB (16 GB × 2) | info |
| Memory type (official table) | Official installed memory is listed as non-ECC | Official installed memory is listed as ECC | info |
| CPU (official table) | Intel Celeron J4125 | AMD Ryzen R1600 | info |
| Official CPU core count | 4 | 2 | info |
| Official CPU thread count | 4 | 4 | info |
| Fastest official onboard Ethernet | 2.5 Gbps | 2.5 Gbps | info |
| Official onboard Ethernet port count | 2 | 2 | info |
| Official onboard Ethernet rows | 1 × official 1GbE (RJ-45 1GbE LAN Port: 1); 1 × official 2.5GbE (RJ-45 2.5GbE LAN Port: 1) | 1 × official 1GbE (RJ-45 1GbE LAN Port: 1); 1 × official 2.5GbE (RJ-45 2.5GbE LAN Port: 1) | info |
| Aggregate official onboard Ethernet (computed) | 3.5 Gbps, computed as the sum of official onboard port count × official port speed from the published LAN rows (1 × official 1GbE (RJ-45 1GbE LAN Port: 1); 1 × official 2.5GbE (RJ-45 2.5GbE LAN Port: 1)) | 3.5 Gbps, computed as the sum of official onboard port count × official port speed from the published LAN rows (1 × official 1GbE (RJ-45 1GbE LAN Port: 1); 1 × official 2.5GbE (RJ-45 2.5GbE LAN Port: 1)) | info |
| Form factor (official table or official model family) | desktop | desktop | info |
| Hot-swappable drives (official table) | Yes | Yes | info |
| Dimensions (official table) | 165 mm × 108 mm × 232.2 mm | 166 mm × 106 mm × 223 mm | info |
| Weight (official table) | 1.3 kg | 1.51 kg | info |
| Power supply (official table) | 60 watts | 65 watts | info |
| Hardware Encryption Engine (official table) | YES | YES | info |
| Total Memory Slots (official table) | 1 | 2 | info |
| USB 3.2 Gen 1 Port (official table) | 2 | 1 | info |
| USB Copy (official table) | YES | Not listed | info |
| Noise Level (official table) | 19.6 dB(A) | 17.9 dB(A) | info |
| Wake on LAN / WAN (official table) | YES | YES | info |
| Power Consumption (official table) | 16.98 watts (Access) / 6.08 watts (HDD Hibernation) | 20.41 watts (Access) / 7.87 watts (HDD Hibernation) | info |
| M.2 slots (official table) | Not listed | 2 | info |
| VaultPick score | 2.9/10 | 2.9/10 | 100% |
Where each one comes out ahead
Synology DS225+
Better published figure on: Official CPU core count.
What we like
- Official table lists a 2.5GbE onboard Ethernet port
- Official maximum memory capacity is 6 GB
- Official table lists hot-swappable drive bays
Watch out for
- Official installed system memory is 2 GB
Synology DS725+
Better published figure on: Installed system memory.
What we like
- Official table lists a 2.5GbE onboard Ethernet port
- Official maximum memory capacity is 32 GB
- Official installed memory is listed as ECC
- Official table lists 2 M.2 slots
Watch out for
- Official CPU core count is 2
Verdict
The official specification tables list the Synology DS225+ as a desktop unit and the Synology DS725+ as a desktop unit. The Synology DS225+ record lists 2 official bays, 2 GB official installed memory, 2.5GbE official onboard Ethernet, 4-core official CPU, 2 official onboard Ethernet ports. The Synology DS725+ record lists 2 official bays, 4 GB official installed memory, 2.5GbE official onboard Ethernet, 2-core official CPU, 2 official onboard Ethernet ports.
- Synology DS225+: Synology official specifications: DS225+
- Synology DS725+: Synology official specifications: DS725+