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Review: ATI Radeon HD 3870 X2 - AMD's back

by Scott Bicheno on 28 January 2008, 16:33

Tags: HIS Radeon HD 3870, AMD (NYSE:AMD)

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Intoduction

Introduced just over two months ago and improving on the Radeon HD 2900 XT design by endowing it with a larger feature-set, ATI's range-topping Radeon HD 3870 offered similar performance for just £150. It wasn't fast enough to give the now-venerable NVIDIA G80 SKUs a run for their money, but battled well in the volume space where it competed against a couple of NVIDIA refreshes - the GeForce 8800 GT and 8800 GTS 512.

ATI would have to architect a grounds-up design to substantially increase pure performance. Such a move would be costly in terms of time to market and, well, sheer design expense. Now, it's done what we all expected, that is, combined two Radeon HD 3870s on to a single PCB (printed circuit board), CrossFired them, and officially launched a dual-GPU card to cater for the high-end of the market.

Let's now see if such a move pays off.

ATI has traditionally left it to its partners, most notably Sapphire, to custom-design dual-GPU-on-a-single-PCB cards. This time, ATI's R680 design is a reference model that will ship directly to AIBs. The technical details do reveal that ATI has tweaked clock frequencies and a bunch of minor features, when compared to the single-GPU Radeon HD 3870.