Radxa X4 vs Cool Pi 4B

Benchmarks, specifications, and real-world performance data

Specification
Basic Specifications
Price$140*
RAM8GB4GB
SoC
Intel® UHD Graphics
Mali-G610 MP4
Rockchip NPU 3.0 (6 TOPS)
Architecturex86ARM
CPU Cores
4 cores
4× Alder Lake-N @ 3.2GHz
8 cores
4× Cortex-A76 @ 2.4GHz
4× Cortex-A55 @ 1.8GHz

Legend

Best value in category
Key performance metric
*Manufacturer's RRP
**Affiliate link that may result in commissions if you purchase a qualifying item
📖

Detailed Reviews

Read our comprehensive reviews from bret.dk featuring data and benchmarks from sbc.compare:

bret.dk logo
Radxa X4 (8GB)
Cool Pi 4B (4GB)

CPU Performance

Processor performance across single and multi-core workloads

Geekbench 6

Higher Scores are Better

Single-Core
Radxa X4 (8GB)
1,243
Cool Pi 4B (4GB)
872
Multi-Core
Radxa X4 (8GB)
2,981
Cool Pi 4B (4GB)
3,002

7-Zip Benchmark

Higher Scores are Better

Single-Core Combined
Radxa X4 (8GB)
3,756 MIPS
Cool Pi 4B (4GB)
3,144 MIPS
Multi-Core Combined
Radxa X4 (8GB)
9,597 MIPS
Cool Pi 4B (4GB)
15,988 MIPS

High Performance Linpack

Higher Scores are Better

Performance
Radxa X4 (8GB)
27.19 GFLOPS
Cool Pi 4B (4GB)
38.13 GFLOPS
Performance/Watt
Radxa X4 (8GB)
1.23 GFLOPS/W
Cool Pi 4B (4GB)
2.23 GFLOPS/W

UnixBench

Higher Scores are Better

Single Core
Radxa X4 (8GB)
1,625
Cool Pi 4B (4GB)
1,436
Multi Core
Radxa X4 (8GB)
3,952
Cool Pi 4B (4GB)
6,206

PassMark CPU

Higher Scores are Better

CPU Score
Radxa X4 (8GB)
4,782
Cool Pi 4B (4GB)
3,192

CPU Mining (cpuminer-multi)

Higher Hashrates are Better

Single Core
Radxa X4 (8GB)
5.61 kH/s
Cool Pi 4B (4GB)
4.42 kH/s
Multi Core
Radxa X4 (8GB)
22.13 kH/s
Cool Pi 4B (4GB)
24.7 kH/s

Memory Performance

Memory bandwidth and throughput benchmarks

TinyMemBench

Higher Bandwidth is Better

memcpy
Radxa X4 (8GB)
No Data
Cool Pi 4B (4GB)
10,753.9 MB/s
memset
Radxa X4 (8GB)
No Data
Cool Pi 4B (4GB)
28,908.3 MB/s

PassMark RAM

Higher Scores are Better

RAM Score
Radxa X4 (8GB)
1,815
Cool Pi 4B (4GB)
984

AI & LLM Performance

Large Language Model inference performance

Ollama LLM Benchmark

Higher Scores are Better

Tokens/sec
Radxa X4 (8GB)
13.77 tok/s
Cool Pi 4B (4GB)
8.15 tok/s
Tokens/Watt
Radxa X4 (8GB)
0.69 tok/W
Cool Pi 4B (4GB)
0.7 tok/W
Tokens/Dollar
Radxa X4 (8GB)
0.17 tok/$
Cool Pi 4B (4GB)
0.06 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 X4 (8GB)
No Data
Cool Pi 4B (4GB)
8.2 MB/s
4K Random Write
Radxa X4 (8GB)
No Data
Cool Pi 4B (4GB)
8.8 MB/s

fio Storage Performance - eMMC

Higher Speeds are Better • CoolPi 64 (64GB eMMC)

4K Random Read
Radxa X4 (8GB)
No Data
Cool Pi 4B (4GB)
21.2 MB/s
4K Random Write
Radxa X4 (8GB)
No Data
Cool Pi 4B (4GB)
26 MB/s

fio Storage Performance - M.2 NVMe

Higher Speeds are Better • Western Digital Black SN770M (500GB M.2 NVMe)

4K Random Read
Radxa X4 (8GB)
1,069.6 MB/s
Cool Pi 4B (4GB)
No Data
4K Random Write
Radxa X4 (8GB)
1,013.3 MB/s
Cool Pi 4B (4GB)
No Data

Network Performance

Ethernet and WiFi throughput measured with iPerf3

iPerf3 Network Performance

Higher Speeds are Better

Ethernet Up
Radxa X4 (8GB)
2,350 Mbps
Cool Pi 4B (4GB)
941 Mbps
Ethernet Down
Radxa X4 (8GB)
2,355 Mbps
Cool Pi 4B (4GB)
940 Mbps

Power & Thermal

Power consumption at idle and under various workloads

Power Consumption

Lower is "Better"

Idle Power
Radxa X4 (8GB)
No Data
Cool Pi 4B (4GB)
2.5W
Load Power
Radxa X4 (8GB)
12.2W
Cool Pi 4B (4GB)
7.9W
Ollama Max
Radxa X4 (8GB)
20.5W
Cool Pi 4B (4GB)
11.7W
Linpack Max
Radxa X4 (8GB)
22.1W
Cool Pi 4B (4GB)
17.1W

Add One More Board

You can compare up to 3 boards at once. Add one more to get the complete comparison.