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Sapphire shows its passives Radeon HD 7750 and 7770

For those who hate even the slightest buzz of your graphics card, Sapphire prepares two midrange deals with totally passive dissipation, it is the Sapphire Radeon HD 7750 and  HD 7770 Ultimate Silent Series.

Radeon HD 7750 Ultimate Silent Edition

Both cards have a large aluminum heatsink and copper heatpipes that are used to passively dissipate the GPU and its memory card, plus the power phase.

Sapphire has not given much information on these cards, but the Radeon HD 7750 Ultimate Silent have default frequencies of 800 MHz for GPU and 1125 MHz for memory (1GB DDR5). This model does not require additional power.

Radeon HD 7770 Ultimate Silent Edition

The Radeon HD 7770 Ultimate Silent Edition also incorporates a large aluminum heatsink and heatpipes, Sapphire had to rearrange the components to fit the new sink and move the memory chips to the backside of the PCB. This card has 1 GHz GPU frequency, although unaware of the rest of the specs at the moment.

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