i bought dell inspiron 3537 with AMD Radeon HD 8850M and i see that her speed is 575 - 725 (Boost) MHz ( and mine is 625 mhz all the time) how to do that boost to be 725 ?? because same thing with procesor Core i7 4th Gen 1.8 Ghz turbo to 3 ghz and it is when i play games .. but my grafic is 625 mhz all the time... can some1 help me? plus i download the latest driver (2015 ) from dell site beccause that new omega catalist driver change the name in r9 200x series something like that...