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Got my 4th HD 4770 yesterday and finally I hit a flawless card. It does 1200MHz Furmark stable on the RAM, with the Asus TOP bios. I can even get it up to
1215MHz before it starts to show a couple of minor dots in stresstesting. This is with a XFX card and the crippled reference cooler, meaning it doesn't get any cooling or airflow at all over the memorychips.
Core does 880MHz at 1volt, which is default for the XFX cards. It is quite obvious that these 40nm chips are very sensitive to heat, anything over 65c and it freezes. This crippled cooler is really crappy, card gets hot like hell. It picks up a lot of heat from the scorching RAMs as well.
I will do some modding to the card later on this week, looks like it has some potential.
Last edited by Clint; 05-26-2009 at 08:53 PM.
GA-H55N-USB3
i3-550 L008B555 @4.6GHz (1.36v)
Sapphire HD 5850 @1GHz/1.3GHz (1.25v)
GSkill ECO 4GB PC3-12800 @1.33GHz 6-6-6-20 1T (1.34v)
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