Introducing the First 1 Gigabyte HD 3870 Graphics Card CHATSWORTH, CA — April 15, 2008 — Diamond Multimedia (www.diamondmm.com), a leading manufacturer of PC graphics cards, sound cards and communications products, introduced today the 1 gigabyte, overclocked version of the ATI Radeon HD 3870 graphics card.  This card offers maximum speed and power at an incredible value.  Utilizing 55nm technology, this card runs cool and quiet. Diamond was the first AIB for AMD to launch a consumer based 1GB card