Question

what is basic difference between LINUX KDE and GNOME ?(other than desktop look)

Answer 1

The GNOME project has a tradition of high-quality interface design which has been strongly influenced by usability principles and practice. GNOME software is available in a large number of spoken languages, and the project aims to ensure that its software is usable for everyone, including people with disabilities.
The KDE® Community is an international technology team dedicated to creating a free and user-friendly computing experience, offering an advanced graphical desktop, a wide variety of applications for communication, work, education and entertainment and a platform to easily build new applications upon. We have a strong focus on finding innovative solutions to old and new problems, creating a vibrant atmosphere open for experimentation.
Generally, KDE focuses on offering as many features as possible with as many graphical ways as possible for configuring those features. Fans of KDE highlight the functionality it has. Critics of KDE say the menus are too confusing.

Gnome, on the other hand, opts for simplicity and often hides certain configurations in order to achieve that simplicity. Fans of Gnome think the simplicity of Gnome offers a cleanliness that allows the user to get stuff done. Critics of Gnome think it just lacks certain functionality.

Once again, this comparison touches on only the surface of the differences and similarities between Gnome and KDE. As you can see, both offer more or less the same functionality. It's up to you to pick the desktop environment that works for you.

You may have glanced at this page and thought, "Well, gee, the differences look very cosmetic. I don't know which one to pick." The good news, though, is that you don't have to pick. You can have both installed together and switch back and forth whenever you feel like it.
for more info look
http://www.psychocats.net/ubuntu/kdegnome

Answer 2

I'll say nothhing other than graphical memory consumption