QNAP TS-433 4-bay
Score: 82/100
Synology DS425+
Score: 65/100Rankings
The QNAP TS-433-4G-US is a compact 4-bay NAS powered by an ARM Cortex-A55 CPU, offering AI-driven photo management, dual Ethernet (including 2.5 GbE), hardware encryption and low power consumption for home and small-office use.
The DS425+ is a 4-bay NAS with 2.5 GbE networking and dual M.2 slots, offering quiet operation and DSM 7.2+ features, aimed at home offices and small businesses.
| Attribute | | |
|---|---|---|
— | 80 TBbest | |
4best | 4best | |
2.5 Gbpsbest | 2.5 Gbpsbest | |
4best | 4best | |
4 GBbest | 2 GB | |
| ↓ lower better | 22.54 Wbest | 28.25 W |
| ↓ lower better | — | 21.6 dBbest |
2 years | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Security(1) | ||
OS Compatibility | QTS 5.0.1+ | DSM 7.2+ |
Performance(3) | ||
CPU Model | ARM Cortex-A55 quad-core 2.0 GHz | Intel Celeron J4125 |
System Memory (GB) | 4 GB | 2 GB |
Power Consumption (Active) (W) | 22.54 W | 28.25 W |
Build & Design(3) | ||
Weight (kg) | 2.07 kg | 2.18 kg |
Power Supply Type | External AC adapter | External 90W AC adapter |
Warranty Period (years) | 2 years | 3 years |
Connectivity(1) | ||
USB Ports | 3 | 2 |
Storage & Capacity(2) | ||
RAID Support | RAID 0, 1, 5, 6, JBOD | SHR, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
Supported Drive Types | 3.5" SATA HDDs, 2.5" SATA SSDs and HDDs | 3.5"/2.5" SATA |
Products in the top-left offer the best value (high score, low price).
Professional reviewers describe the TS-433 as a smartly designed home NAS that balances performance, AI features, and affordability. They commend its AI-driven photo management and 2.5 GbE connectivity, but caution that the ARM CPU and fixed 4 GB RAM limit software compatibility and future expandability.
Everyday users appreciate the device's easy setup, quiet operation, and especially the fast, accurate AI photo organization. The 2.5 GbE port is frequently praised for speeding up backups and streaming, while common frustrations revolve around limited RAM, occasional performance slowdowns under load, and the lack of SSD cache or broader app support.
Professional reviewers consider the DS425+ an evolutionary update that modernizes networking with 2.5 GbE and adds dual M.2 slots, but they caution that the aging J4125 processor and limited memory cap its performance for demanding virtualization or transcoding tasks.
Everyday users appreciate the silent, "library-quiet" operation and the speed boost from 2.5 GbE, finding the setup straightforward and the DSM interface user-friendly, while noting the lack of 10 GbE and occasional instability with the USB-C expansion.
“smartly designed home NAS”
“excellent AI photo tagging”
“forward-thinking”
