RK3568 and RK3588 are two most popular Rockchip processors for modern edge AIoT devices. Engineers frequently struggle to select the right SoC for their product, over‑specifying hardware and running into thermal or cost issues in mass production.
RK3568 features quad‑core A55 CPU, 0.8‑1 TOPS NPU, dual‑channel DDR4 and rich peripheral interfaces. Typical power consumption sits around 2‑4W under normal load. It works well for light‑weight AI inference, single‑channel video decoding, industrial gateway, simple HMI and low‑power digital signage. Thermal design pressure is relatively low; basic copper pouring on PCB is enough for most use‑cases. If your workload is sensor data collection, small‑scale object detection or 1080P video stream processing, RK3568 can save significant BOM cost.
RK3588 is Rockchip flagship octa‑core SoC (4×A76 +4×A55), delivering up to 6 TOPS INT8 NPU performance, supporting 8K codec and multiple independent display outputs电子发烧友…. It handles heavy multi‑camera AI analysis, high‑resolution multimedia and complex UI rendering. But developers must pay close attention to thermal management. Under full CPU+NPU load, power can reach 7‑12W. Without proper heat dissipation including thermal vias, large copper area or heat sink, SoC will trigger thermal throttling, dropping inference frame‑rate and causing system instability in high‑temperature industrial enclosures.
Quick selection tips:
- Choose RK3568: Light‑AI tasks, cost‑sensitive, strict power budget, moderate temperature environment.
- Choose RK3588: Multi‑camera vision, high‑complexity neural network, 4K/8K video output, rich multi‑display requirement.
Do not blindly select RK3588 for simple gateway projects. Over‑specification brings extra thermal risk and unnecessary hardware cost.
