Buying a new laptop trying to make a choice on graphics cards?

Question by Jake L: Buying a new laptop trying to make a choice on graphics cards?
First the lap top is a Latitude D820 and it has to be this laptop. In september it will primarly be used as a work laptop for college, major is CS. The only graphics card Dell is offering is a Nividia Quarto 256Mb which is fine for rendering and image programs but for the time being before college I wanted to know if it would be possible to install a Nividia card that would performe well for Movies, graphics, games, editing movies, and others media applications. So basically would it be possible to order the Nividia Quatro with the lap top and then swap it out for 3 to 5 months with another card that is sutited for media applications.
How difficult would this be?
How would one go about phiscially installing this card?
How would one go about software installing this card?
I was reading some where alot about different drivers for these cards? What is a driver any ways?
If the 820 lattitude laptop already has the Nividia quatro driver installed will it confilict with the new card?
Also after I used the new graphics card int the lap top could i install it onto another desktop computer? I have a dell XPS gen II. 1GB of ram. Integraded grapihics. Also does nividia provide instructions on how to install and disinstall graphics cards because that part makes me nervous.
also my processor is a intel Penitum R 4 CPU 3.00 GHZ for the desktop, ill get the laptop in a sec
Intel® Core™ 2 Duo T7200 (2.00GHz) 4M L2 Cache, 667Mhz Dual Core [add $ 112.00]

Intel® Core™ 2 Duo T7400 (2.16GHz) 4M L2 Cache, 667Mhz Dual Core [add $ 240.00]

either one of these or higher processors
Also, what is lifetime of graphics card?
Please suggest Midrange to highend graphics cards.

Best answer:

Answer by bambamitsdead
It’s been years and years since I saw a laptop that had replaceable graphics.

If you are required to have a Dell D820 laptop then that;s the graphics card you have to live with.

You can’t change it.

It’s not a removable object, it’s components soldered onto the main board of the computer.

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