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Sapphire Radeon HD 6790 Graphics Card Review

by Stuart Davidson - 5th April 2011
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Sapphire Radeon HD 6790 Graphics Card Review

Sapphire Radeon HD 6790 1GB Graphics Card

There are no surprises as far as Sapphires packaging goes. We get a compact box with a variation on their mascot with a few product specifications and features listed on the front. Inside we find a decent bundle which includes a couple of Molex to 6-pin power convertors, DVI to VGA dongle, product documentation/software and our registration card for Sapphire Select Club. This gives us access to free software downloads, competitions etc.

Sapphires 6790 uses a blue PCB and attached to the front is their own cooler which features three copper heatpipes, aluminium fins and a low noise fan. This version of the card is actually shorter than the reference model by around 1cm excluding the cooler but retains all of the same features such as the single crossfire connector which we can see on the back of the card.

Turning the card round to look at the outputs we see that Sapphire have gone with DisplayPort, HDMI 1.4 and two DVIs. This is a change from the reference design which uses two mini-DisplayPort connectors rather than the full size equivalent. We can of course connect 3 screens to this card for Eyefinity gaming and productivity and in terms of power inputs we have two six pin sockets on this card (and the reference) which assist in supplying a maximum of 150w at load (19w idle).

In terms of the detailed specifications on the 40nm chip we have a card with 800 stream processors, 40 texture units, 16 ROPS the GPU has access to 1GB of memory (256-bit bus). The card fully supports PCIe 2.1, DirectX 11 and DirectCompute along with acceleration of high definition content. We can also output audio over HDMI if required and the option is available to connect this card to a 3D display for stereoscopic gaming, movies and pictures.

Sapphire clock their GPUs at 840MHz with the Elpida GDDR5 running at 1050MHz (4.2GHz).

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