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3D Performance level settings

347 Views 1 Reply 2 Participants Last post by  NETio
Checking through RivaTuner my XFX 275 GPU has settings of 640/1404/1134, this is with "enable driver level overclocking" selected, my question, Is this as it appears, a "pre-selected" overclock?

The card cannot take any change from these settings without a video lockup (still has a picture, just no movement,app is Crysis)

Temps are in mid 50's C fan 100% 190.62 drivers. Is there a 64 bit version RivaTuner,perhaps this is a clue as it looks like I am running a 32-bit version (x86) with a 64 bit OS Win 7
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