When the Raspberry Pi 3 first came out I was shocked how much it could do with less than a gigabyte of RAM (it technically has one gig but it shares it with the GPU). Linux is ridiculously lean when packaged right.

I have an Android tablet with four gigabytes of RAM that sometimes crashes running Firefox with multiple tabs, something the Pi somehow managed with a fraction the resources. Windows often struggled with eight gigabytes before I upgraded.