8800GT's has several different cooling solutions. Most of them were single slot and depending on what the fan profile is they ran pretty warm even at idle. What are your load temps, that will help as well. Other than that, does it artifact? if not, I wouldn't worry about it. Heat doesn't equate to a bad GPU or memory.
No it doesnt artifacts, its a new card installing (replaced by Dell).
If I play GTA 4 on very low (but shadows are on), its 75-83.