According to Rumors, some information about NVIDIA’s GeForce GTX 580 video card is leaked last month during the GPU Tech Conference in San Jose. Last month NVIDIA let a few international press members go to the NVIDIA labs and get some hands on time with the new GPU. The rumors about the upcoming GF110 silicon is starting to become rampant. Rumor has it that this video card is poised for at least a paper-launch by end of November or early December. Sources in the video card industry say that the GeForce GTX 580 is expected to be 20% faster than the existing GeForce GTX 480. Remember that the GF100 was supposed to have 512 cores, but shipped with only 480 enabled due to heat and yield issues at TSMC? Rumor has it that NVIDIA tweaked the core a bit and made it more efficient and enabled all of the cores. Having those cores enabled only boosts the overall core count by roughly 7%, so they have also done some other tweaks if this rumor is true.