The HIS HD 4770 remains a hungry animal and as such has a 6-pin PCI-E power port on the rear of the card to keep it fed.

I'm speculating here, but with a $100 VGA card, I'm betting HIS was wanting to keep the end product as inexpensive as possible.  As such, one of the first things to go is a factory installed aftermarket cooler or an otherwise high end unit such as the very successful IceQ cooler designs HIS produces. 

The cooler we find on the HIS HD 4770 is a rather simple radial section design.  The gold colored aluminum fins all span so that air from the centrally mounted 90mm cooling fan blows away from the GPU in the most direct path possible.  The plastic top cover on the cooler doesn't appear to serve any purposes other than aesthetics.  Obviously, no matter how simple this cooler design is, it remains a two slot cooling solution.

Another benefit of the spanning fins is that they can blow air over the card's BGA memory chips.  I'm a big fan of RAM sinks being attached to memory but in some cases they are overrated.  Take the highest end cards and you will see RAM sinks and other active cooling on one side of the card and memory chips laid out bare on the other.  In this case, we don't have any RAM sinks but we do have active cooling. 

  

Double your pleasure if you like with Crossfire.  Each ATi Crossfire Ready card comes with two posts that require connection to another Crossfire Ready card to split up operations making for even greater speed..

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