Qualcomm made a Pi 5 killer. Good luck getting one.

Radxa Dragon Q8B: A Snapdragon-Powered SBC Challenger

Jeff Geerling reviews the Radxa Dragon Q8B, a $209 single-board computer using Qualcomm's Snapdragon 8cx Gen 3. It promises to outperform the Raspberry Pi 5 with twice the CPU cores, a faster GPU, built-in NPU, multiple M.2 slots, and dual 2.5GbE networking, plus native Windows 11 support. The review focuses on Linux performance, software maturity, and market context.

Performance and Efficiency

• In Geekbench and HPL benchmarks, the Q8B is more than twice as fast as the Raspberry Pi 5 in multi-core workloads, approaching but not matching Apple M1 performance.
• Memory bandwidth and 3D graphics are major upgrades: WebGL Aquarium ran 50,000 fish at 60 FPS, and 4K YouTube playback showed one dropped frame.
• Idle power is higher because Radxa defaults to performance mode; full load exceeds 20 W, so a 65 W power adapter is recommended.
• 2.5GbE works well for downloads, but upload speeds capped around 200 Mb/s in iPerf3 testing.

Software and Usability

• Setup is less beginner-friendly than Raspberry Pi OS. Users must choose among Ubuntu/Debian variants, R5/R6 images, and microSD/NVMe versus UFS boot.
• First boot took 3–4 minutes and rebooted several times, but the desktop remained responsive and system settings were correctly configured.
• A notable criticism: standard apt upgrade is unsupported; Radxa requires its proprietary rsetup tool. This breaks common Linux workflows.

Generic Ubuntu installation failed even after a BIOS update, leaving the platform feeling like "late beta" software. Early buyers are effectively beta testers.

Availability and Market Outlook

• The hardware itself is praised: quiet fan, one-sided port layout, generous PCIe expansion, and an undocumented header for future experimentation.
• The biggest barrier is supply: the review unit took three months to arrive, and Raspberry Pi availability also appears tight. Geerling notes the SBC hobby may be declining.

Key Takeaway

The Radxa Dragon Q8B delivers exceptional performance and efficiency for its price, but immature software and long lead times make it suitable mainly for early adopters who enjoy troubleshooting. Qualcomm's entry into the SBC market is promising, yet the ecosystem still lacks the plug-and-play reliability that made Raspberry Pi the default choice.