ASUS Radeon HD 7870 DirectCU II

Graphics Cards
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The ASUS HD 7870 DirectCU II is 24.1 cm long measured from the rear panel to the far edge of the circuit board and the cooler adds an additional 2.3 cm to its length. The heatpipes also hang over the edge of the PCB, increasing its effective width by 2.0 cm. The heatsink accounts for 440 grams of the card's 710 gram total weight.

The card is equipped with a large, dual fan VGA cooler, but this particular specimen is unimpressive due to its very thin 80 mm fans. The larger three-slot GTX 680 DirectCU II OC cooler used full sized fans.

Video outputs: DVI-I, DVI-D, HDMI, DisplayPort.

The cooler is secured using the standard 53 mm square, four screw arrangement found on most Radeons produced in the past few years. If you go with a heavy aftermarket cooler, there's a metal strip running along the outside edge of the PCB that helps keep the card from bending.

The heatsink uses 3 x 8 mm thick direct touch heatpipes to transfer heat to the aluminum fins which are about 0.40 mm thick and spaced 1.40 mm apart. Strangely, a thermal pad near the base helps cool only four of the eight memory chips while the other four are left bare. The fans are powered off a small 5-pin connector; we're not sure what the 5th pin is for.

The PCB layout is very clean with all the capacitors and inductors off to the sides. The GPU core is positioned nearly dead center.

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