Radxa X4 vs Radxa ROCK 5B
Benchmarks, specifications, and real-world performance data
Tested by Bret Weber Last updated
Fastest
Radxa ROCK 5B
3,043 GB6 multi-core
Best value
Radxa X4
29.8 GB6 pts/$ at $100
Most efficient
Radxa ROCK 5B
9.5W under load
Comparison Summary
This comparison puts the Radxa X4 and the Radxa ROCK 5B side by side using benchmark results from our own testing of each board. CPU performance is close: the Radxa ROCK 5B scores 3,043 in Geekbench 6 multi-core against 2,981 for the Radxa X4, a gap of just 2%. For budget-focused builds, the Radxa X4 wins the value contest at 29.8 multi-core points per dollar at $99.99. The Radxa ROCK 5B is the most frugal under load, drawing 9.5W (4.5W at idle).
Read our individual reviews:
| Specification | Radxa X4 8GB RAM | Radxa ROCK 5B 8GB RAM |
|---|---|---|
| Basic Specifications | ||
| Price | ||
| RAM | 8GB | 8GB |
| SoC | ||
| Architecture | x86 | ARM |
| CPU Cores | 4 cores 4× Alder Lake-N @ 3.4GHz | 8 cores 4× Cortex-A76 @ 2.4GHz 4× Cortex-A55 @ 1.8GHz |
Every figure above comes from hardware run in-house by Bret Weber, on the exact OS build, kernel, firmware and boot device listed here. Boards are tested to a fixed procedure so results stay comparable between them: see our testing methodology for how each benchmark is run.
Detailed Reviews
Full write-ups on bret.dk, using the same benchmark data:
CPU Performance
Processor performance across single and multi-core workloads
Geekbench 6
Higher Scores are Better
7-Zip Benchmark
Higher Scores are Better
High Performance Linpack
Higher Scores are Better
UnixBench
Higher Scores are Better
PassMark CPU
Higher Scores are Better
CPU Mining (cpuminer-multi)
Higher Hashrates are Better
Memory Performance
Memory bandwidth and throughput benchmarks
AI & LLM Performance
Large Language Model inference performance
Ollama LLM Benchmark
Higher Scores are Better
Storage Performance
Disk I/O throughput measured with FIO
fio Storage Performance - M.2 NVMe
Higher Speeds are Better • Western Digital Black SN770M (500GB M.2 NVMe)
Only this board has been tested so far, so there is nothing to compare against yet.
Network Performance
Ethernet and WiFi throughput measured with iPerf3
iPerf3 Network Performance
Higher Speeds are Better
Power & Thermal
Power consumption at idle and under various workloads
Power Consumption
Lower is "Better"
Frequently Asked Questions
Which is faster, the Radxa ROCK 5B or the Radxa X4?
The Radxa ROCK 5B is faster in our testing, scoring 3,043 in Geekbench 6 multi-core versus 2,981 for the Radxa X4, a 2% advantage.
Which board is the best value?
Of the boards in this comparison, the Radxa X4 offers the best performance per dollar: 29.8 Geekbench 6 multi-core points per dollar at $99.99.
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