Single-board computers (SBCs) have become powerful devices capable of handling a variety of tasks, from everyday computing to complex machine learning algorithms. This article provides an in-depth comparison of six exceptional SBCs available in 2023: Raspberry Pi 5, Orange Pi 5, Lichee Pi 4A, VisionFive 2, Odyssey x86J4125 v2, and Rock 3C. Each board has its own unique features, processing capabilities, and ecosystems, making them suitable for different needs and applications.