Is it worth going for a Radeon 7790 at this point (for £85)?

[Kantor]

Pemalite said:

Which card did you order?
Also do a before-and-after benchmark with 3D mark, to see the kind of jump you get. :)

Also, don't forget to uninstall the nVidia drivers before you install the AMD card.

MSI 7850 2GB: http://www.overclockers.co.uk/showproduct.php?prodid=GX-191-MS&groupid=701&catid=56&subcat=411

It would be pretty hilarious to run a 3DMark now because there's currently no graphics card in the system (the old one is faulty, hence my hurry to upgrade).

How would I go about uninstalling the drivers? Is it through Device Manager? And should I download the AMD ones before I plug in the card, rather than using whatever is on the disc?