BeagleBone Black vs Radxa Rock 3A
Side-by-side comparison of features, pricing, ratings, and alternatives.
The BeagleBone Black is a low-cost, community-supported development platform featuring an AM335x 1GHz ARM Cortex-A8 processor. It runs full-featured Linux distributions and offers extensive expansion capabilities through dual 46-pin headers. Designed for hobbyists, educators, and embedded developers, the board integrates 512MB of DDR3 RAM and 4GB of on-board eMMC flash storage preloaded with Debian. Its unique Programmable Real-Time Unit (PRU) subsystems allow for deterministic, low-latency real-time I/O operations.
The Radxa Rock 3A is a versatile single-board computer designed for developers, IoT enthusiasts, and makers seeking robust computing power in a compact form factor. Equipped with a quad-core ARM Cortex-A55 processor and up to 8GB of LPDDR4 RAM, it delivers reliable performance for edge computing, media streaming, and home automation projects. Featuring comprehensive connectivity options including M.2 NVMe SSD support, Gigabit Ethernet, and multiple USB ports, the board bridges the gap between desktop-class utility and embedded hardware flexibility. It supports various Linux distributions and Android, making it an adaptable platform for prototyping and custom industrial deployments.
- Full open-source hardware design with accessible schematics
- Dual PRU coprocessors allow for real-time operations
- Pre-flashed Debian Linux on built-in eMMC storage
- Vibrant community and extensive documentation available
- High-speed NVMe SSD support via M.2 slot
- Reliable quad-core ARM performance
- Dual display capabilities up to 4K
- Extensive operating system support
- Lacks built-in wireless connectivity like Wi-Fi or Bluetooth
- Only 512MB of RAM limits heavy multi-threaded applications
- Can be more difficult for absolute beginners compared to Arduino
- Requires separate purchase of power supply and storage
- Limited community documentation compared to older Raspberry Pi models
- Wi-Fi and Bluetooth require an optional module
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The Verdict
AI-generated from listing dataThe BeagleBone Black offers a stable, fully open‑source board with built‑in Ethernet and pre‑flashed Debian at a low fixed price, while the Radxa Rock 3A provides higher CPU performance, gigabit Ethernet with PoE, and optional NVMe storage but requires extra purchases and has less community support.
Key differences
- •CPU: BeagleBone Black uses a 1 GHz single‑core Cortex‑A8; Radxa Rock 3A uses a quad‑core Cortex‑A55 up to 2 GHz.
- •Storage: BeagleBone Black includes 4 GB eMMC; Radxa Rock 3A needs separate storage (M.2 NVMe or microSD).
- •Connectivity: BeagleBone Black has 10/100 Ethernet only; Radxa Rock 3A offers gigabit Ethernet with PoE and optional Wi‑Fi/Bluetooth.
- •Open‑source: BeagleBone Black hardware is fully open‑source; Radxa Rock 3A is not.
- •Price range: BeagleBone Black fixed MSRP $65; Radxa Rock 3A varies $35‑$75 depending on RAM and extra accessories.
Performance
Radxa Rock 3A’s quad‑core Cortex‑A55 up to 2 GHz outperforms the single‑core 1 GHz Cortex‑A8 of BeagleBone Black.
Build quality
Both boards are similar small SBCs with comparable weight and dimensions; no factual difference noted.
Connectivity
Radxa Rock 3A provides gigabit Ethernet with PoE and optional Wi‑Fi/Bluetooth; BeagleBone Black only has 10/100 Ethernet.
Power & efficiency
BeagleBone Black runs directly from USB power without needing extra supplies; Radxa Rock 3A may need a separate power adapter.
Compatibility
BeagleBone Black’s fully open‑source hardware and pre‑flashed Debian ensure broad software compatibility out of the box.
Price & value
BeagleBone Black has a single MSRP $65; Radxa Rock 3A starts lower but requires extra purchases for storage and power.
Warranty & support
Both offer a 1‑year warranty; community support is stronger for BeagleBone Black, but warranty terms are identical.
Choose BeagleBone Black if…
Embedded developers needing a ready‑to‑run, fully open‑source board with reliable Ethernet and minimal extra cost.
Choose Radxa Rock 3A if…
Engineers requiring higher CPU power, gigabit Ethernet with PoE, and optional NVMe storage, and willing to buy accessories.
Common questions
Which board is cheaper overall?
BeagleBone Black costs a fixed $65; Radxa Rock 3A starts at $35 but typically needs extra power supply and storage, raising total cost.
Do either of these boards include Wi‑Fi or Bluetooth?
No. BeagleBone Black has none; Radxa Rock 3A can add Wi‑Fi/Bluetooth via an optional M.2 E‑key module.
Is the hardware design open source?
BeagleBone Black is fully open‑source hardware; Radxa Rock 3A is not open source.