Few producers decided to release productive video card with a passive cooling system. Often, only low-end solutions obtain noiseless cooling, and video card average and upper price range are satisfied by active cooling, which is specified on the relatively high heat emission level .
Recently, Sapphire presented the video card Radeon HD 4670 Ultimate, characterized by a passive cooling system. This card uses the elder version RV730 chip and GDDR 3 memory . The frequencies are 750/2000 MHz (core/memory) (default value for Radeon HD 4670 ).
The cooling system in Radeon HD 4670 Ultimate uses two heat pipes , that discharge heat- from the graphic processor to the radiator. The Radeon HD 4670 Ultimate, besides the customary interfaces VGA and DVI, is equipped with HDMI. Additional power for this video card is not required. Related Products :
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