Ibrid Graphics card - ATI/AMD RadeonHD 6630m Driver

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Hello All,

I installed Ubuntu 12.04 and the graphic effects work well with my Ibrid card ATI/AMD Radeon HD 6630m on Sony Vaio VPCCB series!!

I do not know which driver is using... but I would like to install the proprietary driver amd.

How do I?
The last 13.1 amd Driver are recommended?
Can anyone tell me with certainty what driver versions amd could install without encountering any errors?

Thanks!