ahh didn't realize you tested the 5770, Is this a refrence design card by chance ?Sean
HIS H577FN1GD Radeon HD 5770 1GB, blah blah blah.. http://www.newegg.com/Product/Product.aspx?Item=14-161-310 Non-reference cooler, but otherwise pretty much standard fair.Overclocks to 1GHz with 1.3GHz ram like no tomorrow, with a slight voltage jump.
--The loon