It looks like some Chinese retailers did not pay attention to NVIDIA’s NDA for the GeForce GTX Titan Z graphics card. Below we have a full listing of specifications for the card, which for those who are wondering the Titan Z will have 5760 CUDA cores, a base clock of 705 MHz and will boost all the way up to 876 MHz.
So with the base clock of 705 MHz that will give the card a theoretical maximum single-precision computing performance of 8.1 TFLOPS and a double-precision of 2.3 TFLOPS. It has also been confirmed that the card will have 7 GHz (effective) memory, which will deliver 672 GB/s of bandwidth. The leaked slide that you see above also shows that the card will have a TDP of 375W. Given that the cooling system can handle 450W that should leave some room for overclocking.
The performance chart you see below show how the GeForce GTX Titan Z does in some of the latest games at a Ultra HD resolution (3840 x 2160). The chart does not tell us anything about any of the other graphics settings.
The next chart shows the Titan Z going up against the Titan Black. Looking at the chart it shows that the Titan Z will be 60% faster than the Titan Black.
Below you can see the rest of the leaked slides from the presentation.