RK3568 vs RK3566 for Embedded SBCs#
Quick Answer#
Choose RK3568 when the product needs a stronger industrial SBC direction: more serious I/O planning, gateway functions, Ethernet-heavy designs, industrial HMI panels, or custom carrier boards. Choose RK3566 when the product is a cost-sensitive Android or Linux display device with moderate interface needs.
Both SoCs can fit Android SBCs and Linux SBCs, but they should not be treated as interchangeable. The board design, BSP quality, exposed interfaces, and production support often matter more than the chip name.
Choose RK3568 When#
- The product is an industrial HMI panel or Linux gateway.
- Ethernet, serial expansion, CAN, RS485, or custom I/O matters.
- The board needs a more industrial carrier design.
- The product runs continuously in a controlled embedded environment.
- You need more margin for gateway services, local data logging, or industrial communication.
Choose RK3566 When#
- The product is a cost-sensitive Android smart panel.
- The main workload is display, touch, UI, media playback, and light application logic.
- Interface needs are moderate.
- The product does not need a heavily industrial carrier board.
- Lower BOM cost and simpler hardware are more important than I/O expansion.
Specification and Product Fit#
| Area | RK3566 | RK3568 |
|---|---|---|
| Typical positioning | Cost-effective Android/Linux display SoC | More industrial SBC and gateway-oriented SoC |
| Product fit | Smart panels, basic HMI, signage, Android terminals | Industrial HMI, gateway, control terminal, Linux SBC |
| UI workload | Good for moderate Android/Linux UI | Good for UI plus more background services |
| Industrial I/O | Depends on board design | Usually better board ecosystem for industrial I/O |
| Cost pressure | Usually stronger fit | Usually higher board/system cost |
| Thermal complexity | Moderate | Moderate, but depends on workload and enclosure |
Software and BSP Comparison#
For Android products, verify the exact Android version, display driver, touch support, GPU acceleration, audio routing, camera support, OTA path, and production flashing tools. RK3566 boards are often used for Android panels, while RK3568 boards are often used where Android UI and industrial connectivity meet.
For Linux products, verify kernel version, device tree quality, Ethernet, USB, serial, GPIO, CAN, RS485, watchdog, RTC, and long-term vendor support. RK3568 is usually the better starting point for Linux gateway or industrial control-adjacent systems.
Application Fit#
| Product Type | Better Starting Point | Reason |
|---|---|---|
| Android smart home panel | RK3566 | Cost-effective display and touch platform |
| Industrial HMI panel | RK3568 | Better fit for I/O-heavy board designs |
| Linux gateway with display | RK3568 | More suitable for networking and industrial expansion |
| Digital signage | RK3566 or RK3568 | Depends on display, media, and cost target |
| Access control terminal | RK3568 | Better when camera, Ethernet, and I/O all matter |
Interface and Expansion Checks#
Do not choose only from a SoC comparison table. Ask the board supplier to confirm:
- Display interface and tested panel list
- Touch controller support
- Ethernet configuration
- USB host and OTG behavior
- UART, I2C, SPI, GPIO availability
- RS485 and CAN through transceivers
- Camera sensor support if needed
- Watchdog, RTC, recovery mode, and factory flashing tools
Power, Thermal, and Enclosure Risk#
Both platforms can fit fanless products, but final behavior depends on enclosure, ambient temperature, display brightness, CPU load, and background services. Test the real application workload inside the intended enclosure.
Final Recommendation#
For a product where cost and Android display experience dominate, start with RK3566. For a product where industrial I/O, gateway functions, Ethernet, Linux services, and board expandability matter, start with RK3568.
Before You Decide#
Compare actual boards, not only SoCs. Ask whether the candidate board exposes the Ethernet, serial, CAN, RS485, watchdog, RTC, recovery, and power-input design you need. Many wrong RK3566/RK3568 choices happen because the board was selected before the interface list was frozen.
FAQ#
Should I choose RK3566 or RK3568 for an Android panel?
RK3566 is often enough for cost-sensitive smart panels. RK3568 is usually a better starting point when the product needs stronger I/O, Ethernet, gateway behavior, or industrial carrier options.
Is RK3568 more industrial than RK3566?
In practice, RK3568 is more often used on industrial SBCs and gateway-style boards, but the final result depends on the board vendor and carrier design.
What is the biggest risk with RK356x boards?
The biggest risk is assuming a demo BSP is production-ready. Always verify source access, recovery, OTA, watchdog, display, thermal behavior, and long-term supplier support.