The sticky "Updating Mobility drivers"...have you read it? If you have switchable graphics, ie, Intel and AMD the only drivers that will work on your computer has to come from Dell. Go to Dell and get the drivers. You cannot use the generic drivers that AMD offers. The games you mentioned can cripple computers with much higher specs than your laptop, so don't expect much.
You could try the Leshcat modded drivers...a link to which is in a post here.
Intel I7 960 @ 3.87ghz *Intel DX58SO *AMD R9 290 4gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit
***** cetera fallunt, ludere mortuus ******
07:57 PM by