Comment Well yes, obviously (Score 1) 75
Linux does typically require more RAM than Windows. I mean Linux is a full operating system including network stack and multitasking, while Windows essentially is a shell for DOS... with some added benefits like having a GUI-Toolkit that supports multiple applications running at once due to cooperative multitasking.
So while your typical Windows system was sold with 4 Megs of RAM, a Linux system typically isn't usable with less than 8 Megs of RAM.
Of course this is now largely irrelevant as RAM is fairly cheap. You can literally have a machine with multiple Gigabytes of RAM, way more than himem.sys would support. (the limit is at 1 Gig, BTW)