This makes them the most eco-friendly option out there. Mini-computers boast relatively large RAM, good graphics, and high-speed web connectivity (both cable-based and Wi-Fi), while at the same time they have fast processors to accompany all that.
Usually they come equipped with high-end SSD hard disks, and a bunch of USB 3.0 ports. The best component is that they are very light, compact, and relatively silent (the latest generation comes with state-of-the-art heat sinks which allow them to be completely silent).