Khadas VIM4 vs Radxa Rock 3A
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Khadas VIM4 is a high‑performance single‑board computer built around the Amlogic A311D2 processor, offering an octa‑core CPU, 8 GB LPDDR4X RAM and 32 GB eMMC storage. It supports HDMI 2.1 input and output, Wi‑Fi 6, Bluetooth 5.2, and an M.2 slot for SSD expansion, making it suitable for media, AI, and edge‑computing projects. Its compact form factor and cloud‑based OS installer (OOWOW) enable rapid deployment in robotics, digital signage, and home‑lab environments, while the robust connectivity options provide flexibility for developers and hobbyists alike.
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.
- Powerful octa‑core processor with AI NPU
- HDMI input enables video capture
- Wi‑Fi 6 and Bluetooth 5.2 built‑in
- Expandable storage via M.2 NVMe
- High-speed NVMe SSD support via M.2 slot
- Reliable quad-core ARM performance
- Dual display capabilities up to 4K
- Extensive operating system support
- Higher price than basic SBCs
- Limited GPIO compared to larger development boards
- No built‑in battery management
- 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 Khadas VIM4 offers far higher performance, AI acceleration, and built‑in Wi‑Fi 6 at a premium $199 price, while the Radxa Rock 3A is a low‑cost, basic SBC that requires extra modules for Wi‑Fi/Bluetooth and storage.
Key differences
- •CPU: VIM4 uses an octa‑core Amlogic A311D2 (up to 2.5 GHz) vs Rock 3A’s quad‑core RK3568 (up to ~2 GHz).
- •AI capability: VIM4 includes an on‑board NPU; Rock 3A has none.
- •Video I/O: VIM4 provides HDMI‑in for capture; Rock 3A only has HDMI‑out.
- •Wireless: VIM4 has integrated Wi‑Fi 6 and Bluetooth 5.2; Rock 3A needs an optional module.
- •Price: VIM4 MSRP $199; Rock 3A $35‑$75 depending on RAM.
Performance
VIM4’s octa‑core 2.5 GHz CPU and NPU outperform Rock 3A’s quad‑core ~2 GHz CPU.
Build quality
Both have similar compact dimensions; VIM4 slightly heavier (120 g vs 45 g) but no clear quality difference.
Connectivity
VIM4 includes Wi‑Fi 6, Bluetooth 5.2, HDMI‑in/out, and M.2 B‑key; Rock 3A lacks built‑in wireless and HDMI‑in.
Power & efficiency
Rock 3A is USB‑powered and cheaper, implying lower power draw; VIM4’s higher‑end components consume more.
Compatibility
Rock 3A offers a 40‑pin GPIO header and broader OS support; VIM4 has limited GPIO and unspecified OS range.
Price & value
Rock 3A costs $35‑$75 versus VIM4’s $199, delivering basic SBC functionality for far less money.
Warranty & support
VIM4 provides a 2‑year warranty; Rock 3A only 1 year.
Choose Khadas VIM4 if…
AI developers or media‑capture projects needing on‑device inference and built‑in Wi‑Fi 6.
Choose Radxa Rock 3A if…
Budget‑focused hobbyists or IoT engineers comfortable adding optional Wi‑Fi/Bluetooth and storage.
Common questions
Can I run AI models on the Rock 3A?
No; the Rock 3A has no dedicated NPU, only a standard CPU.
Do I need to buy extra parts for Wi‑Fi on either board?
VIM4 includes Wi‑Fi 6 and Bluetooth 5.2; Rock 3A requires an optional Wi‑Fi/Bluetooth module.
Which board is cheaper to start a basic Linux project?
Rock 3A, priced $35‑$75, is far less expensive than the VIM4’s $199 MSRP.