Raspberry Pi 5 vs. ROCK 5A. An Engineer’s Review

When it comes to selecting a single-board computer (SBC) for your next project, both the Raspberry Pi 5 and the Radxa ROCK 5A offer compelling options. Here’s a detailed comparison of their technical specifications and performance:

1. System on a Chip (SoC)

  • Raspberry Pi 5: Broadcom BCM2712, a 4-core 64-bit SoC, featuring four Arm Cortex-A76 cores running at up to 2.4GHz .
  • ROCK 5A: Rockchip RK3588S, an 8-core 64-bit SoC, featuring four Cortex-A76 cores and four Cortex-A55 cores, also running at up to 2.4GHz .
  • Impact: The ROCK 5A’s DynamicIQ technology effectively balances performance and power efficiency, offering more than double the computing power in heavy workloads.

2. Memory

  • Raspberry Pi 5: Available options include 4GB or 8GB LPDDR4X SDRAM .
  • ROCK 5A: Offers a wider range with 4GB, 8GB, or 16GB LPDDR4x SDRAM.
  • Impact: Greater memory options on the ROCK 5A aid in handling more complex applications and multitasking .

3. Storage Options

  • Raspberry Pi 5: Supports Micro SD and a PCIe 2.0 x1 interface.
  • ROCK 5A: Supports Micro SD, eMMC, and PCIe with M.2 slots for NVMe SSDs.
  • Impact: The availability of eMMC and NVMe SSD support in the ROCK 5A enhances storage performance and durability.

4. Connectivity and I/O

  • Raspberry Pi 5: Dual 4k HDMI outputs, USB-C power, 2x USB 3.0 and 2x USB 2.0 ports, Dual-band 802.11ac WiFi, and Bluetooth 5.0 along with Gigabit Ethernet.
  • ROCK 5A: Dual 8k HDMI outputs, USB-C power, several USB ports, dual-band WiFi 6 and Bluetooth 5.2, and Gigabit Ethernet.
  • Impact: The ROCK 5A provides enhanced connectivity options, including higher WiFi standards and additional display outputs.

5. Graphics Processing Unit (GPU)

  • Raspberry Pi 5: VideoCore VII, supporting OpenGL ES 3.1 and Vulkan 1.2 .
  • ROCK 5A: Mali G610MC4, supporting OpenGL ES 3.2, OpenCL 2.2, and Vulkan 1.2 .
  • Impact: The Mali GPU in the ROCK 5A supports a broader range of high-resolution video decoding and graphics standards, beneficial for media-intensive applications.

6. Power Supply

  • Raspberry Pi 5: Relies on a 27W USB-C power supply delivering up to 5A at +5.1V .
  • ROCK 5A: USB Type-C with Power Delivery 2.0, supporting a wide voltage range and potentially more robust power options.
  • Impact: Flexible power supply options make the ROCK 5A more adaptable to various power environments.

7. AI and Machine Learning Capabilities

  • Raspberry Pi 5: Does not feature a dedicated AI acceleration module .
  • ROCK 5A: Includes a 6 TOPS NPU (Neural Processing Unit), facilitating efficient AI and ML tasks.
  • Impact: The built-in NPU on the ROCK 5A accelerates AI workloads and enhances capabilities for applications involving machine learning .

Summary

While the Raspberry Pi 5 continues to be a popular choice due to its affordability and robust community support.