Every card is new card and has a 2-years warranty on it .
I'm not going to OC,I don't need PhysX.I only afraid about card's temperature cause it's hot where I live.In summer the open-air temperature can be 43°C (~109°F)
I think 5670 and 4770 lack of raw power so only 4850 & 250 left
Is the 4850 cooler than 250?
And If I pick 250 then what should I pick ?