Radxa X4 vs Libre Computer Sweet Potato

Benchmarks, specifications, and real-world performance data

Specification
Basic Specifications
Price
RAM8GB2GB
SoC
Intel® UHD Graphics
Mali-450 MP3
Architecturex86ARM
CPU Cores
4 cores
4× Alder Lake-N @ 3.2GHz
4 cores
4× Cortex-A53 @ 1.4GHz

Legend

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

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

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Radxa X4 (8GB)
Libre Computer Sweet Potato (2GB)

CPU Performance

Processor performance across single and multi-core workloads

Geekbench 6

Higher Scores are Better

Single-Core
Radxa X4 (8GB)
1,243
Libre Computer Sweet Potato (2GB)
No Data
Multi-Core
Radxa X4 (8GB)
2,981
Libre Computer Sweet Potato (2GB)
No Data

7-Zip Benchmark

Higher Scores are Better

Single-Core Combined
Radxa X4 (8GB)
3,756 MIPS
Libre Computer Sweet Potato (2GB)
1,102 MIPS
Multi-Core Combined
Radxa X4 (8GB)
9,597 MIPS
Libre Computer Sweet Potato (2GB)
3,780 MIPS

High Performance Linpack

Higher Scores are Better

Performance
Radxa X4 (8GB)
27.19 GFLOPS
Libre Computer Sweet Potato (2GB)
No Data
Performance/Watt
Radxa X4 (8GB)
1.23 GFLOPS/W
Libre Computer Sweet Potato (2GB)
No Data

UnixBench

Higher Scores are Better

Single Core
Radxa X4 (8GB)
1,625
Libre Computer Sweet Potato (2GB)
296
Multi Core
Radxa X4 (8GB)
3,952
Libre Computer Sweet Potato (2GB)
No Data

PassMark CPU

Higher Scores are Better

CPU Score
Radxa X4 (8GB)
4,782
Libre Computer Sweet Potato (2GB)
463

CPU Mining (cpuminer-multi)

Higher Hashrates are Better

Single Core
Radxa X4 (8GB)
5.61 kH/s
Libre Computer Sweet Potato (2GB)
1.21 kH/s
Multi Core
Radxa X4 (8GB)
22.13 kH/s
Libre Computer Sweet Potato (2GB)
4.83 kH/s

Memory Performance

Memory bandwidth and throughput benchmarks

TinyMemBench

Higher Bandwidth is Better

memcpy
Radxa X4 (8GB)
No Data
Libre Computer Sweet Potato (2GB)
2,083.7 MB/s
memset
Radxa X4 (8GB)
No Data
Libre Computer Sweet Potato (2GB)
5,846.2 MB/s

PassMark RAM

Higher Scores are Better

RAM Score
Radxa X4 (8GB)
1,815
Libre Computer Sweet Potato (2GB)
441

AI & LLM Performance

Large Language Model inference performance

Ollama LLM Benchmark

Higher Scores are Better

Tokens/sec
Radxa X4 (8GB)
13.77 tok/s
Libre Computer Sweet Potato (2GB)
No Data
Tokens/Watt
Radxa X4 (8GB)
0.69 tok/W
Libre Computer Sweet Potato (2GB)
No Data
Tokens/Dollar
Radxa X4 (8GB)
0.17 tok/$
Libre Computer Sweet Potato (2GB)
No Data

Storage Performance

Disk I/O throughput measured with FIO

fio Storage Performance - eMMC

Higher Speeds are Better • Libre Computer eMMC (16GB eMMC)

4K Random Read
Radxa X4 (8GB)
No Data
Libre Computer Sweet Potato (2GB)
28.1 MB/s
4K Random Write
Radxa X4 (8GB)
No Data
Libre Computer Sweet Potato (2GB)
16.3 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
Libre Computer Sweet Potato (2GB)
No Data
4K Random Write
Radxa X4 (8GB)
1,013.3 MB/s
Libre Computer Sweet Potato (2GB)
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
Libre Computer Sweet Potato (2GB)
94 Mbps
Ethernet Down
Radxa X4 (8GB)
2,355 Mbps
Libre Computer Sweet Potato (2GB)
94 Mbps

Power & Thermal

Power consumption at idle and under various workloads

Power Consumption

Lower is "Better"

Load Power
Radxa X4 (8GB)
12.2W
Libre Computer Sweet Potato (2GB)
1W
Ollama Max
Radxa X4 (8GB)
20.5W
Libre Computer Sweet Potato (2GB)
No Data
Linpack Max
Radxa X4 (8GB)
22.1W
Libre Computer Sweet Potato (2GB)
No Data

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