AMD announces ATI Radeon HD 3870 X2

Written by Tim Smalley

January 28, 2008 // 1:12 p.m.

Tags: #3870 #amd #announce #ati #hd #r680 #radeon #rv670 #x1950 #x2 #xtx

This morning, AMD announced immediate availability of its first high-end graphics card since the ATI Radeon X1950 XTX. It's known as the ATI Radeon HD 3870 X2 and is the industry's first "teraflop-class" graphics card.

For those that were expecting a review of the HD 3870 X2 on bit-tech this morning, we're sorry that it's not quite finished yet - as we're waiting on a few answers from AMD on some problems we encountered during our testing.

AMD describes the card as "an elegant yet aggressive design", as it incorporates two GPUs connected through an integrated CrossFire chip on a single PCB.

Like the rest of the Radeon HD 3000 series, the Radeon HD 3870 X2 supports DirectX 10.1, CrossFireX (when drivers become available), ATI PowerPlay and also AMD's Unified Video Decoder.

AMD claims the card delivers a two fold increase in performance-per-watt over the Radeon HD 2900 XT - this is thanks to the combination of the 55nm manufacturing process and ATI's PowerPlay technology.

The GPUs are collectively known as R680, but it's actually a pair of RV670 chips with different clocks to the Radeon HD 3870. The core clock is set at 825MHz - compared to 775MHz on the single 3870; the memory, on the other hand, is clocked at 1.8GHz - down from 2.25GHz on the 3870.

A lot of this card's success is going to depend on AMD's support for CrossFire---a lot of which we discussed in our comprehensive review of the Radeon HD 3870, and we'll see how it fares when all of our results are complete. For now though, you can discuss AMD's re-entry into the high-end in the forums.
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