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Is there a link or any side-by-side comparisons detailing why one would choose Kubuntu or Xubuntu over Ubuntu? I am running on a somewhat older machine (Dell optilplex 745 tower), so how would this figure into the decision?

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closed as not constructive by Alvar, Thomas W., Eric Carvalho, Jorge Castro, Geppettvs D'Constanzo Apr 22 '13 at 22:21

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Just install the xubuntu-desktop and kubuntu-desktop and find out! –  Alvar Apr 22 '13 at 21:41
    
I'll save you a lot of time: Xubuntu. Fast, snappy, easy to work with, convenient, yet full of feautures. (Okay, reasonable amount of features.) No need to thank! –  Shiki Apr 22 '13 at 22:07
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1 Answer 1

I don't have a link handy but the main differences are the following:

Ubuntu:

  • Main distribution
  • Uses Unity as the desktop environment
  • Close to what people sees when people says "Linux desktop"

Kubuntu:

  • Uses KDE as the desktop environment
  • Pretty-looking. I personally describe it as a Mac OS X/Windows hybrid, visually speaking.
  • Generally slower on lower end/older hardware
  • Might use more disk space.
  • Has the best MIME-Type association system/launcher, in my humble opinion. (kde-open)

Xubuntu:

  • Uses XFCE as the desktop environment
  • XFCE is a fork of the old GNOME desktop, resembles GNOME 2 in appearance, aimed at being lightweight but still usable.
  • runs decently on lower end/old hardware
  • Not exactly "super fast", but better faster than GNOME/Unity/KDE

There's also Lubuntu and Fluxbuntu which are using different desktop environments, respectively LXDE and Fluxbox. Fluxbox would be the fastest and lightest, but not exactly user-friendly, especially if you come from another non-unix-line Operating System. Other distributions that are lighter and that might work better depending on how old and powerful this computer is, but I will let you do the research about those.

As noted in this answer's comments, LXDE is not actively developed anymore.

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XFCE == LXDE in terms of speed. Except Xfce got more features. LXDE is not even getting commits anymore, it's literally been dead for a year or so. (Only PcMan working on his file manager.) RazorQt is the same. Just go with Xfce. –  Shiki Apr 22 '13 at 22:08
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Xfce is not a fork of Gnome 2. Not by far. –  aquaherd May 4 '13 at 10:58
    
I thought it was. My bad. –  Voxhyr Dec 22 '13 at 6:39
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