Just to adjust the numbers a little, the Pi idles at 2-4W (for similar RAM spec), and the N100/150 are only about 2-4x more performant (with a slight bit less efficiency), for most tasks, in real-world benchmarks.

(Not saying they're not a good value, but you'd have to cherry pick a few benchmarks to say there's 4-10x performance.)

Up to n100 you still can cool the passively (see TopTon on Aliexpress).

Above that they need a fan.