Solved Did I install a wrong Graphic driver?

Hi,
I have Dell n5010
From the dell support page it shows that the driver for my laptop is "AMD ATI Mobility Radeon HD 5650/5470/4200/550v Graphics Driver"
but I have already downloaded ATI Mobility 4650 driver and installed it.
Did I install a wrong driver? Should I download a new one from dell support?

Nevermind this

Your question is quite interesting as I confront the same problem. I have DELL Inspiron N4050 and the website mentioned that my Graphics Card is AMD Radeon 7450M while after installing latest Driver from AMD it shows it is Radeon 7400M.