Following the aftermatch of Computex, rumours about Nvidia’s future cards are starting to hit the internet. First up would be the 460 card, followed by 455 and 490. The GTX 460 appears to be the odd 336 SP product, 768MB mated to a 192-bit. The 455 card – which may end up being labeled GTS or GTX – is based on GF106, and will be priced under $200 to take on the HD 5700 series. Finally, GTX 490 will be a dual-GPU product, consisting of two GF104/GTX460 cores.

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Following the aftermatch of Computex, rumours about Nvidia’s future
cards are starting to hit the internet. First up would be the 460 card,
followed by 455 and 490. The GTX 460 appears to be the odd 336 SP
product, 768MB mated to a 192-bit. The 455 card – which may end up being
labeled GTS or GTX – is based on GF106, and will be priced under $200
to take on the HD 5700 series. Finally, GTX 490 will be a dual-GPU
product, consisting of two GF104/GTX460 cores.

While previous rumours suggested GF104 will be 240/256 SP and GF106 will be 128-160 SP, the current rumours suggest GF104 will be a far more powerful chip. The reason for the odd SP count of 336 is that the 460 could be that it is based on GF104, which realters the nature of each SM. The GF104 SM, then, contains either 16 or 48 SP – and perhaps, with some disabled for the 460 part. The full GF104 might then be a 384 SP product. The GTX 465 will almost certainly be EOLed not much following the release of the 460.

GF106 or GTS(X) 455, will take on the HD 5700 series. It is possible that the mysterious 240 SP part rumoured could be the GF106. 240 SP is right on cue with where Nvidia would like specs to be to outperform the HD 5770. There could be a further 450 or 445 cards, all under $200. Details on GF106 remain sparse at this moment. The 455 is set to release in August.

Finally, Nvidia will release a new dual-GPU flagship, the GTX 490. The better thermal characteristics of GF104 means a dual-GPU product is possible with a TDP of under 300W. However, considering the GTX 460 matches, or even slightly outperforms the GTX 465, a dual-GPU 460 will simply not be enough to take the performance crown away from the HD 5970. It will, however, close the massive gap between the GTX 480 and the HD 5970. The power consumption is described to be “extreme” and is likely to end up as 300W. It is also set to release in August.

Nvidia has been rather poor at keeping dates of late, and indeed, it would be a remarkable achievement if Nvidia can release GF104, GF106 as well as a dual-GF104, all within the space of about 6 weeks. However, Nvidia needs to get these products out as soon as possible. ATI has been quiet for a long while now – no doubt preparing Southern Islands in anger. Any delay beyond September, and Nvidia could be looking at a very short time span of competitiveness. If the 336 SP spec turns out to be true, Nvidia have also positively surprised us with what was initially believed to be a 256 SP product. It is clear that GF104 will be a competitive chip – balancing power consumption / performance much better than the GF100. It remains to see if it gets close to Cypress in the power/performance metric.

For the consumer, there will finally be much needed competition in the high volume $100-$200 market, something that has been missing for more than half a year.

Reference: PCGamesHardware