[Guru3D] - Gigabyte GV-R485OC-1GI Radeon HD 4850 1GB review
 

It has a custom PCB (printed circuit board), comes with no less than 1 Gigabyte of GDDR3 framebuffer (memory), the manufacturer slapped a Zalman cooler on top of it and to finish it off they even overclocked it. It's the stuff we life and breathe for here at Guru3D.com, definitely worth our time checking out. As it turns out, this is one of the best Radeon HD 4850 cards we ever tested.