Synology DS423+ vs DS920+

Choosing the right Network Attached Storage (NAS) device can be a difficult decision with so many options available. Two popular options from Synology, the DS423+ and DS920+, have a lot in common, but also have some key differences. In this article, we will compare these two models based on their upgrades, multimedia capabilities, expansion options, functionality, hardware, performance, and overall dimensions.

One important factor to consider when purchasing a NAS is its upgrade potential. The DS423+ can be upgraded up to 6GB of RAM, while the DS920+ can be upgraded up to 8GB of RAM. Both models come with DDR4 non-ECC RAM, but the DS920+ has an advantage in terms of upgradeability.

Both the DS423+ and DS920+ feature the same Intel Celeron J4125 processor with a base frequency of 2.0 GHz and a burst frequency of 2.7 GHz. They also feature the same Intel UHD Graphics 600 GPU, with a graphics base frequency of 250 MHz and a graphics burst frequency of 750 MHz. Therefore, both models have similar multimedia capabilities.

The DS920+ has an advantage when it comes to expansion. It can be connected to an expansion unit via eSATA, which can expand its storage capacity up to 9 drives. The DS423+, on the other hand, does not have any expansion options.

The new DS423+ will have an NVMe storage pool option available, which can significantly improve the device’s performance. The DS920+ also has NVMe support, but it can only be used for caching purposes. So, in terms of functionality, the DS423+ has an advantage over the DS920+.

Both the DS423+ and DS920+ have the same CPU, DDR4 non-ECC RAM, GPU, and NVMe storage capabilities. However, neither device has a USB3 10Gbit connection, only 5Gbit. Additionally, only DS920+ model has an eSATA port.

Both the DS423+ and DS920+ have 4 drive bays, and their performance in terms of hard drives will be similar. Since they both feature the same CPU, their overall performance will also be very similar. The main difference in performance will come from the NVMe storage pool option on the DS423+. However, both models are limited by their 1GbE LAN ports, which can be a bottleneck for performance. Unofficial USB 5GbE adapters can be used to maximize performance.

The dimensions of these two devices are not significantly different, so it is not a major factor when choosing between the DS423+ and DS920+.


DS423+ vs DS920+ Specs side by side

Specification DS423+ DS920+
CPU Intel Celeron J4125 Intel Celeron J4125
Number of Cores 4 4
Base Frequency 2.0 GHz 2.0 GHz
Burst Frequency 2.7 GHz 2.7 GHz
Hardware Encryption Engine Yes (AES-NI) Yes (AES-NI)
Memory 2GB DDR4 SODIMM (upgradable to 6GB) 4 GB DDR4 onboard (expandable up to 8 GB)
Compatible Drive Types 4 x 3.5″ or 2.5″ SATA SSD/HDD (hard drives not included) 4 x 3.5″ or 2.5″ SATA HDD/SSD (drives not included)
M.2 Slots 2 x M.2 2280 NVMe SSD (drives not included) 2 x M.2 2280 NVMe SSD (drives not included)
NVMe Storage Pools Available Caching Only
Expansion Unit No Yes (via eSATA) up to 9 bays
External Ports 2 x USB 3.2 Gen 1 ports 2 x USB 3.0 ports, 1 x eSATA port
LAN Ports 2 x 1GbE RJ-45 ports 2 x Gigabit (RJ-45) ports
Wake on LAN/WAN Function Yes Yes
Scheduled On/Off Yes Yes
Case Fans Yes Yes
AC Power Input Voltage 100V to 240V AC 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase 50/60 Hz, Single Phase
Maximum Height Work 2.18 kg 2.24 kg
Processor Graphics Intel® UHD Graphics 600 Intel® UHD Graphics 600
Graphics Base Frequency 250 MHz 250 MHz
Graphics Burst Frequency 750 MHz 750 MHz

Overall, the DS423+ and DS920+ have very similar specifications, as they both have the same CPU, GPU, and similar external ports. However, the DS920+ has an advantage in terms of expansion, as it can connect to an expansion unit via eSATA, and it has M.2 slots for NVMe SSDs that can be used for caching. On the other hand, the DS423+ has an advantage in terms of potential performance, as it can have NVMe storage pools, while the DS920+ can only use NVMe SSDs for caching. Additionally, the DS423+ has the potential for a longer EOL support cycle than the DS920+. Ultimately, the choice between these two models will depend on the user’s specific needs and priorities.

Overall, both the DS423+ and DS920+ are great NAS devices, and the decision between them will come down to individual needs. The DS423+ has a potential advantage in terms of performance with the NVMe storage pool option, and its EOL support cycle will be 3 years longer than the DS920+. On the other hand, the DS920+ has an advantage in terms of expansion with its eSATA port. When making a decision, it is important to consider these factors and determine which device best suits your specific needs.

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