hmmm , i been using gaimward HD4850 , yes , indeed the temp at room temp is 40+ on idle even after turning on for 1 day .... the on load for me , din really got pass 60 degree most of the time ....

so yes , gaimward seem not bad , not to mention it have higher stock core, lol
normal HD4850 / HD4870 seem to have temp problem , it is fine if u think ur gc going hot is not a problem , lol