Well i had an XFX 9500GT before i upgraded to the ATI 6750!
That Card Is CRAP!(Sorry..But thats the truth)...
I managed to get 650 Mhz(GPU) Max.. Dnt Remember Shader Clock! Using RIva Tuner!
Anyways.. Your Card is 2 Months Old ? OMG! You Should Have enquired before getting it! For The Same price(Or Maybe adding 10-20$ more) to the price of the 9500GT, u cud hav got a great middle class card(ATI 5xxx series)!
Anyways.. Good Luck WIth That!