Radxa Cubie A7A is a powerful SBC based on Allwinner A733 Cortex-A76/A55 AI SoC with up to 16GB RAM

Radxa Cubie A7A is an upcoming single board computer (SBC) powered by an Allwinner A733 octa-core Cortex-A76/A55 SoC with a 3 TOPS AI accelerator and up to 16GB LPDDR5 memory.

Radxa came back to the Allwinner SoC family after the silicon vendor committed to improving open-source support, starting with the Radxa Cubie A5E SBC powered by an Allwinner A527/T527 SoC. But this was only the start, and we were promised a more powerful Allwinner A733 SBC before moving to the Allwinner A838 down the road. The Allwinner A733 board has now been unveiled. Meet the Radxa Cubie A7A.

Raxda Cubie A7E

Radxa Cubie A7A specifications:

  • SoC – Allwinner A733
    • CPU
      • Dual-core Arm Cortex-A76 @ up to 2.00 GHz
      • Hexa-core Arm Cortex-A55 @ up to 1.79 GHz
      • Single-core RISC-V E902 real-time core
    • GPU – Imagination Technologies BXM-4-64 MC1 GPU
    • VPU
      • 8Kp24 H.265/VP9/AVS2 decoding
      • 4Kp30 H.265/H.264 encoding
    • AI accelerator – Optional, up to 3 TOPS NPU
  • System Memory – 2GB, 4GB, 8GB, or 16GB LPDDR5 @ 4800 MT/s
  • Storage
    • 128Mbit SPI flash (Winbond W25Q128JWPIQ) for bootloader
    • MicroSD card slot
    • eMMC or UFS module support
  • Display interfaces
    • HDMI 2.0b port
    • MIPI FPC connector
  • Camera interface – MIPI CSI connector
  • Audio – Line out on header, HDMI audio output
  • Networking
  • USB
    • 1x USB 3.0 host port
    • 3x USB 2.0 host ports
    • 1x USB 2.0 OTG Type-C port
  • Expansion
    • 40-pin GPIO header
    • PCIe Gen3 FPC connector
  • Misc
    • FEL button
    • RTC battery connector
  • Power Supply – 5V/4A via USB-C connector
  • Dimensions – 85 x 56 mm

Allwinner A733 SBC with eMMC or UFS storage
Bottom side

Radxa Cubie A7A block diagram

Radxa has not officially announced the board, so there’s limited information about software. All information above comes from the linux-sunxi website, which has an entry for the board. It includes some links to the Radxa BSP and Allwinner Tina SDK 1.4.6, but some links are not working, and some don’t seem relevant. The Allwinner A733 board should also run Android 15,  since the SoC targets tablets and laptops running Google’s mobile operating system.

The Radxa A5E SBC was launched in January 2025, and there’s now some documentation, but it seems progress may be slower than some expected. Work is being done on upstreaming Allwinner A527/T527 SoC, which gained support for the watchdog, the clock driver, the pin control driver, and the NMI controller in Linux 6.15, but from a single contributor (Andre Przywara) who is not working for Allwinner as far as I know. I can’t see any patchsets for the Allwinner A733 in the Linux changelogs, so upstream support for the new processor should take even longer.

It’s still early for the Cubie A7A board, and I’ll update this post once the board becomes available and we get more information.

Thanks to SunxiFan for the tip

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