Ever since the rumour mill started on GF104, even before Geforce GTX 460′s release, a dual-GF104 card was rumoured. This rumour has continued doing rounds ever since, with several sources expecting a hypothetical GeForce GTX 490 to materialize sooner rather than later. However, two months since the GTX 460 release, there are no signs of a dual-GF104 card just yet. Instead, KitGuru now reports that NVIDIA is planning a dual-GF106 card, performing akin to GeForce GTS 450 in SLI.

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Ever since the rumour mill started on GF104, even before Geforce GTX 460′s release, a dual-GF104 card was rumoured. This rumour has continued doing rounds ever since, with several sources expecting a hypothetical GeForce GTX 490 to materialize sooner rather than later. However, two months since the
GTX 460 release, there are no signs of a dual-GF104 card just yet.
Instead, KitGuru now reports that NVIDIA is planning a dual-GF106 card,
performing akin to GeForce GTS 450 in SLI.

Perhaps the major praise received for the GTS 450 is its SLI performance, with average scaling an incredible 80% in many cases. As with SLI, performance varies greatly between games, but on average, two GTS 450 in SLI, ends up somewhere between the Radeon HD 5850 and the Radeon HD 5870, with performance almost on par with the GeForce GTX 470. The power consumption of this combination is expect to be approximately 200W.

The hypothetical dual-GTS 450 could cost as little as $250, outperforming the Radeon HD 5850 at $270. Unfortunately, the rumour suggests a November release date, by when AMD will have its Radeon HD 6800 cards released or right around the corner. Judging by the several leaked benchmarks, even a dual-GF106 would fall well short of Cayman Pro / HD 6850.

Performance wise, NVIDIA could may as well match dual-GF106 with a fully enabled GF104, another part that has been rumoured. However, perhaps the reason why we see neither a fully enabled 384 SP GF104 nor a dual-GF104 could very well be yields. NVIDIA is pushing the GTX 460 cards incredibly aggressively, with the prices for the GTX 460 768MB being an amazing $170, making it a true bargain. Perhaps there aren’t enough GF104 chips to put in other cards? Or is NVIDIA waiting for the Radeon HD 6000 series? Indeed, GTS 450 is the first Fermi card released with all SMs enabled (though even the GTS 450 contains a 64-bit bus disabled). It could well be that putting two GF106 in a card could be a more cost effective and easier option than a fully enabled GF104.

Of course, considering the strong GF104 rumours failing to materialize, this could be another rumour that remains a rumour. With Radeon HD 6000 series cards fast approaching, NVIDIA will have to respond, and dual GPU cards may be the easiest short-term solutions.

Reference: KitGuru