Exploring the Rockchip RK3326

Rockchip RK3326

When it comes to choosing the heart of your mobile or embedded device, the Rockchip RK3326 is a contender worth exploring. In this article, we'll break down the key aspects of this CPU, from its performance to connectivity and more. Let's dive in!

Key CPU Details

Before we delve further into performance, let's take a closer look at the Rockchip RK3326's specifications:

  • Class: Mobile/Embedded
  • Socket: NA
  • Clockspeed: 1.5 GHz
  • Cores: 4 Threads: 4
  • Other names: Rockchip RK3326
  • CPU First Seen on Charts: Q1 2021
  • CPUmark/$Price: NA
  • Overall Rank: 4045
  • Last Price Change: NA

Average CPU Mark Rating

The Rockchip RK3326 boasts an average CPU Mark rating of 401, showcasing its competence in various tasks.

Single Thread Rating

For applications that rely on single-threaded performance, the RK3326 achieves a rating of 243, making it a suitable choice for a range of tasks.

CPU Test Suite Average Results for Rockchip RK3326

Here's a breakdown of the Rockchip RK3326's performance across various test categories:

  • Integer Math: 2,776 MOps/Sec
  • Floating Point Math: 956 MOps/Sec
  • Find Prime Numbers: 1 Million Primes/Sec
  • Random String Sorting: 1,698 Thousand Strings/Sec
  • Data Encryption: 276.6 MBytes/Sec
  • Data Compression: 6,124 KBytes/Sec
  • Physics: 34 Frames/Sec
  • Extended Instructions: 352 Million Matrices/Sec
  • Single Thread: 243 MOps/Sec

Key Features of Rockchip RK3326

The Rockchip RK3326 isn't just about raw performance; it's also loaded with features that make it a versatile choice for various applications.

CPU Specifications

  • CPU: Quad-Core ARM Cortex-A35, up to 1.5GHz
  • GPU: Mali-G31 GPU, supports OpenGL ES3.2, Vulkan 1.0, OpenCL 2.0
  • High-performance dedicated 2D processor

Multi-Media Capabilities

The RK3326 offers extensive multimedia support, making it suitable for a wide range of media-centric applications:

  • Multi-format 1080P 60fps video decoders (H.265, H.264, VC-1, MPEG-1/2/4, VP8)
  • 1080P video encoding for H.264, VP8

Display Capabilities

Whether you need to drive displays with high resolution, the RK3326 has you covered:

  • Supports RGB/LVDS/MIPI-DSI, with a resolution of up to 1920x1080

Memory Support

Memory is a crucial factor in CPU performance, and the RK3326 provides versatile memory support:

  • 32-bit DDR4-1600/DDR3-1600/DDR3L-1600/LPDDR3-1600/LPDDR2-1066
  • Supports MLC NAND, eMMC 4.51, Serial Nor FLASH

Connectivity Options

Connectivity is essential for modern devices, and the RK3326 offers a variety of options:

  • MIPI CSI and DVP Sensor interface, built-in 8M ISP
  • Supports 1x8ch I2S/TDM, 1x8ch PDM, 2x2ch I2S/PCM
  • SDIO3.0, USB2.0 OTG, I2C, UART, SPI

Pros and Cons


The Rockchip RK3326 has several advantages that make it an attractive choice:

  • Decent overall performance with a competitive CPU Mark rating of 401
  • Support for multi-format 1080P video decoding, making it suitable for multimedia applications
  • Extensive memory support, accommodating a range of memory types
  • Versatile connectivity options, enabling various device configurations
  • Competitive value for money, as indicated by the CPUMark per dollar


Despite its strengths, the Rockchip RK3326 does have some drawbacks:

  • Single-thread performance, as reflected by a Single Thread Rating of 243, may not be suitable for single-threaded applications requiring high performance.
  • The CPUmark/$Price information is not available, making it challenging to assess its cost-effectiveness in comparison to other options.


The Rockchip RK3326 is a solid contender in the realm of mobile and embedded CPUs. Its respectable overall performance, extensive multimedia support, versatile memory options, and connectivity capabilities make it a compelling choice for various applications.

However, its single-thread performance may not meet the demands of applications that rely heavily on individual core performance. Additionally, the lack of CPUmark/$Price information makes it challenging to evaluate its cost-effectiveness compared to other options in the market.

When considering the Rockchip RK3326, it's essential to weigh its pros and cons against your specific requirements. Depending on your project's needs, it may be an excellent fit or may require further evaluation against alternative CPUs.

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