Ryan He says to Ubuntu 台灣社群 https://www.maketecheasier.com/lxde-vs-xfce/ In a fresh boot, CPU usage is the same at around 1 percent, but LXDE uses a paltry 219 MB RAM, whereas XFCE uses 465 MB RAM. 實際比較大概都是LXDE<XFCE<LXQT