Which graphics card would be better for a Dell M6500 for use with large assemblies?  I'm more interested in speed of viewing/rotating rather than having perfect looking surfaces.  And I do almost no rendering.

Here's a site which compares them and at first blush it looks like the M7820 might be better for graphics due to the GPU display properties and shader performance (though I don't know if this is as important for what I'm after, fast rotation refresh, than it would be for a gamer.)

http://www.game-debate.com/gpu/index.php?gid=622&gid2=407&compare=firepro-m7820-vs-quadro-fx-3800m

The other thing to consider is power requirements.  I've had problems with the Quadros getting hot.

Thanks folks.