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Radxa ROCK 3C 2GB

Benchmarks, specifications, and real-world performance data

Power draw

4.3W load

2.3W idle

Price

$25.00

RRP

Performance Summary

The Radxa ROCK 3C is an ARM single board computer built around the Rockchip RK3566, pairing 4 CPU cores with 2GB of RAM in this configuration. In our testing it reached 4,755 MIPS in multi-core 7-Zip compression. Raw floating point throughput came in at 8.20 GFLOPS in Linpack. We measured 2.3W idle and 4.3W loaded power consumption.

Specification
Basic Specifications
Price
RAM2GB
SoC
Mali-G52 2EE
ArchitectureARM
CPU Cores
4 cores
4× Cortex-A55 @ 1.8GHz
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Radxa ROCK 3C (2GB)

CPU Performance

Processor performance across single and multi-core workloads

7-Zip Benchmark

Higher Scores are Better

Single-Core Combined
Radxa ROCK 3C (2GB)
1,373 MIPS
Multi-Core Combined
Radxa ROCK 3C (2GB)
4,755 MIPS

High Performance Linpack

Higher Scores are Better

Performance
Radxa ROCK 3C (2GB)
8.2 GFLOPS
Performance/Watt
Radxa ROCK 3C (2GB)
1.37 GFLOPS/W

UnixBench

Higher Scores are Better

Single Core
Radxa ROCK 3C (2GB)
403
Multi Core
Radxa ROCK 3C (2GB)
1,345

PassMark CPU

Higher Scores are Better

CPU Score
Radxa ROCK 3C (2GB)
682

CPU Mining (cpuminer-multi)

Higher Hashrates are Better

Single Core
Radxa ROCK 3C (2GB)
1.63 kH/s
Multi Core
Radxa ROCK 3C (2GB)
6.51 kH/s

Memory Performance

Memory bandwidth and throughput benchmarks

PassMark RAM

Higher Scores are Better

RAM Score
Radxa ROCK 3C (2GB)
564

AI & LLM Performance

Large Language Model inference performance

Ollama LLM Benchmark

Higher Scores are Better

Tokens/sec
Radxa ROCK 3C (2GB)
2.69 tok/s
Tokens/Watt
Radxa ROCK 3C (2GB)
0.44 tok/W
Tokens/Dollar
Radxa ROCK 3C (2GB)
0.07 tok/$

Storage Performance

Disk I/O throughput measured with FIO

fio Storage Performance - microSD

Higher Speeds are Better • Raspberry Pi 64GB (64GB microSD)

4K Random Read
Radxa ROCK 3C (2GB)
11.4 MB/s
4K Random Write
Radxa ROCK 3C (2GB)
7.8 MB/s

fio Storage Performance - eMMC

Higher Speeds are Better • Radxa eMMC (16GB eMMC)

4K Random Read
Radxa ROCK 3C (2GB)
29.5 MB/s
4K Random Write
Radxa ROCK 3C (2GB)
37.9 MB/s

fio Storage Performance - M.2 NVMe

Higher Speeds are Better • Crucial P5 Plus (1024GB M.2 NVMe)

4K Random Read
Radxa ROCK 3C (2GB)
136.3 MB/s
4K Random Write
Radxa ROCK 3C (2GB)
81.6 MB/s

Network Performance

Ethernet and WiFi throughput measured with iPerf3

iPerf3 Network Performance

Higher Speeds are Better

Ethernet Up
Radxa ROCK 3C (2GB)
942 Mbps
Ethernet Down
Radxa ROCK 3C (2GB)
941 Mbps

Power & Thermal

Power consumption at idle and under various workloads

Power Consumption

Lower is "Better"

Idle Power
Radxa ROCK 3C (2GB)
2.3W
Load Power
Radxa ROCK 3C (2GB)
4.3W
Ollama Max
Radxa ROCK 3C (2GB)
6.1W
Linpack Max
Radxa ROCK 3C (2GB)
6W

Frequently Asked Questions

How much power does the Radxa ROCK 3C use?

We measured the Radxa ROCK 3C drawing 2.3W at idle and 4.3W under sustained CPU load.

How much does the Radxa ROCK 3C cost?

The Radxa ROCK 3C has a manufacturer's recommended price of $25.00 for the 2GB RAM configuration. Street prices vary by retailer and availability.

See how the Radxa ROCK 3C stacks up against another board, side by side.