Rockchip's RK3562J and RK3568J are two mainstream processors for industrial IoT and edge computing applications, featuring different CPU architectures. The RK3562J adopts the mature Cortex-A53 architecture for basic industrial applications, while the RK3568J utilizes the newer Cortex-A55 architecture for higher performance scenarios. Based on the latest official specifications, this article provides a detailed analysis of the technical differences and application selection between these two processors.
BL370 Series using RK3562J 4*A53 RK3562J ARM Embedded Industrial Computer
BL410 Series using RK3568J 4*A55 RK3568J ARM Embedded Industrial Computer
CPU Configuration:
RK3562J: Quad-core Cortex-A53 (1.8GHz) + Cortex-M0 coprocessor (200MHz)
RK3568J: Quad-core Cortex-A55 (1.8GHz)
Architecture Comparison:
| Feature | Cortex-A53 | Cortex-A55 |
|---|---|---|
| Process Node | 28nm | 12nm |
| Power Efficiency | Basic | 30% improvement |
| Memory Support | LPDDR3/4 | LPDDR4X |
| Instruction Set | ARMv8-A | ARMv8.2-A |
Computing Performance:
RK3562J (A53): ~1.8 DMIPS/MHz per core
RK3568J (A55): ~2.3 DMIPS/MHz per core, ~25% overall improvement
AI Acceleration:
RK3562J: Optional 1TOPS NPU
RK3568J: Standard 1TOPS NPU with support for more AI frameworks
Multimedia Processing:
RK3562J: 1080p60 decoding/4K30 encoding
RK3568J: 4K60 full-format codec
Real-time Capabilities:
RK3562J: Hardware-level real-time control via Cortex-M0
RK3568J: Relies on software optimization for real-time performance
Expansion Interfaces:
RK3562J: 2x CAN 2.0B + 2x USB2.0
RK3568J: 1x PCIe 2.0 + 2x USB3.0
Reliability Design:
Both support industrial temperature range (-40°C to 85°C)
RK3568J adds ECC memory support
RK3562J Preferred Scenarios:
✓ Motor control (Cortex-M0 real-time response)
✓ Power monitoring terminals
✓ Low-power HMI devices
RK3568J Preferred Scenarios:
✓ Multi-channel video analytics
✓ Smart retail terminals
✓ 5G edge gateways
Choose RK3562J when:
Hardware real-time core is required
Budget is limited (20-30% lower BOM cost)
Basic control requirements
Choose RK3568J when:
Higher computing performance is needed
Multi-channel video processing required
Future expandability is important
BL370 Industrial Computer:
Uses RK3562J
Typical applications: PLC controllers, industrial sensor gateways
BL410 Edge Computing Box:
Uses RK3568J
Typical applications: Machine vision, intelligent security systems
(Note: Please refer to Rockchip's official website and Bliiot Technology's product pages for the latest technical specifications)
