to a new leak, Nvidia's GF110 based GTX 580 should launch next Tuesday, November 9th. Although the specs have been rumoured for quite some time, we can now be pretty sure that the card will end up with 512 SPs, 128 TMUs and should work at clocks that are significantly higher than on the GF100-based GTX 480.
The card should end up clocked at 772MHz for the GPU, 1544MHz for Shaders and 4.0Gbps for 1536MB of GDDR5 memory paired up with a 384-bit interface. Another interesting piece of information is the actual TDP of the new card. Although it has more CUDA Cores and a higher GPU clock, the card has a slightly lower TDP of 244W. We still don't know if Nvidia is still talking about typical load power, as the GTX 480 or GF100 had 250W TDP, which was actualy a bit closer to 300W under full load.
In addition to these specs, Chinese site PCOnline leaked, what appears to be, a Nvidia performance summary slide that puts the upcoming GTX 580 against GTX 480 and AMD's Radeon HD 5870 card. Of course, these slide should be taken with a grain of salt as these are still to be confirmed. In any case, the situation should be quite clear once Nvidia officially launches this card on November 9th.
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