guru3d.com — We test the Gigabyte GV-R485OC-1GI Radeon HD 4850 equipped with 1GB of DDR3 memory. 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.