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PHYSICAL DETAILS
The HD 4770 has a familiar cooler, but the board layout has been altered slightly.
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The reference HD 4770 has a PCB length of 20.3 cm and is equipped with
a dual-slot heatpipe cooler. Unlike most of the HD 4000 series, a separate
ramsink module is used to cool the memory chips.
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From the outside the heatsink looks more or less like the one used on
the HD 3870/4870/4890, though the sticker art is more stylized. The card's
backpane includes a TV-out and dual DVI ports.
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A strange black metal cover runs along the length of the top side of the
card secured by screws through the PCB and the back panel
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Installed in our testbed.
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