None of your numbers match what video card Dell installed in this computer model. It's most likely the nVidia but even with that chipset brand, Dell used 2 different chipsets in this Dell computer model. You will need to determine what nVidia chipset your system contains before you (or I) will be able to select the correct driver.
If you are unable to figure it out, open Device Manager, double-click the graphics/video adapter device, click the Details tab, select 'hardware id's, then give me the hardware id string that begins with PCI\VEN (1st. line of text only).