Rockchip RK3566 features and highlights

October 21, 2020

In the Rockchip 2020 Processor Roadmap Update we had some basic info for RK3566 SoC and we know it’s a mid-range SoC targeting at AIoT applications with quad A55 cores, G52 GPU and supports dual display. We also regarded RK3566 as an upgrade version of the classic RK3288 with 64bits cpu, up to date gpu and some modern peripheral such as USB3.0. Vamrs, as the tier one design house of Rockchip, now have received the reference design of RK3566 and we can’t wait to share with you some highlights of this amazing and promising SoC. We love it very much :-D

Rockchip Roadmap 2020

Multiple version of this SoC

As far as we know, there is multiple version/variant of RK3566 for different market, such as RK3566A for tablets, RK3566D for OTT box. There is also a verison called RK3568 with the same CPU/GPU IP but with higher speed peripherals such as PCIe 3.0. This will be revealed when the RK3566 is official announced, possiblly in the upcoming Rockchip Developer Conference in Nov.

Brief Specification

CPU Quad-core ARM Cortex-A55, Neon and FPU, 22nm process, up to 2.0GHZ
GPU G52 2EE,
OpenGL ES1.1 / 2.0 / 3.0 / 3.1 / 3.2, Vulkan 1.1, OpenCL 2.0
NNIP 1Tops
Media Nor SFC, SPI Nand, eMMC 5.1, Nand
Video Decoder 4KP60 H.264/H.265/VP9 Profile0 2
Video Encoder 1080P60 H.264, H.265
MIPI_CSI MIPI-CSI2, 1x4-lane/2x2-lane
CIF/DVP IO:150MHz,Support BT.656/601/1120
Display LVDS/MIPI DSI, HDMI 2.0, eDp, Eink
SDIO SDIO 3.0 x3
Peripheral USB 2.0 HOST, USB2.0 OTG
USB 3.0 HOST x1
PCIe 2.0 x1
SATA 3.0 x2*
UART: 10, SPI: 4, PWM: 16, I2C: 6 , SAR-ADC: 4
Ethernet GMAC x1(10/100/1000M)
Audio Interface 8ch PDM
OTP OTP (Size 8K)
Crypto (SM2/3/4), TEE, Trustzone

Note: SATA1 is muxed with USB3 HOST, SATA2 is muxed with PCIe 2.0 x1.

Highlights 1: High performance CPU & GPU

  • New ARM architecture and advanced process brings higher performance and power efficiency

rk3566a cpu gpu improvement

Highlights 2: New generation(3rd Gen) Rockchip ISP

  • up to 8M@30fps processing power, suppporting time-sharing and multiplexing dual camera
  • Powerful HDR function makes the image clear under backlight or strong light conditions
  • Support dual channel simultaneous zooming output
  • Noise cancellation function, so that the image under low light conditions is also delicate
  • Support defogging function, can see clearly even in haze
  • Support lateral correction of LDCH to remove the distortion caused by the sensor lens

Hightlight 3: Powerful multimedia decode/encode capability

  • Support 4KP60 H.264/H.265/VP9 and other formats HD decoding
  • Support simultaneous decoding of multiple video sources
  • Support HDR10, excellent performance in color and dynamic range
  • Support image post-processing, deinterleaving, denoising, color enhancement, resolution increase
  • Support 1080p 60fps H.264 and H.265 format encoding
  • Support dynamic bit rate, frame rate, resolution adjustment

Hightlight 4: Integrated efficient RKNN AI processing unit

  • NPU with 1TOPs computing power
  • Embedded neural network hardware accelerator, support INT8, INT16, FP16 efficient operation
  • NPU hardware natively supports technologies such as pre-processing merging, channel quantization, and zero skipping
  • Support lossless compression of INT8, INT16, FP16 neural network parameters
  • The NPU core supports ordinary convolution, depth separable convolution, deconvolution, hole convolution, fully connected layer and pooling layer
  • NPU internal blocks include multiply-add operations, activation, LUT and precision conversion units, and support custom layer construction
  • Support one-click model conversion, support Caffe/TensorFlow/TF-Lite/ONNX/PyTorch/Keras/Darknet mainstream framework models


Althought RK3566 is target as a middle range SoC, but we think the performance is good enough for many applications, from multimedia human-machine interaction, to computer vision to robotics. It has very rich interfaces and many high speed peripherals. We also noticed, there is QSGMII words in the reference design though it’s not implemented, which means in the future we may connect 5Gbps ethernet phy to RK3566. This is really exciting, we can wait to get our hands on this SoC and put it into various applications. If you have some ideas or you want to design your product based on RK3566, you can contact us.

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