The driver is there...look under supported cards " AMD6843.1 = AMD Radeon HD 7670M"". You can use the 13.1 drivers. http://benchmark3d.com/drivers-search
I am assuming you don't have switchable graphics...knowing that you read the sticky "updating mobility drivers".
-------------------------
Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit *Gateway HD2401 24" 2ms 1920x1200 ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ***Acer 5750 laptop
* A clear conscience is usually a sign of bad memory *