Nvidia has revealed that will be making a "special announcement" at its Nvidia Gaming Festival in Shanghai this coming Saturday, and has even launched a countdown clock to build the anticipation. The clock tells us that "it's coming," so we can expect to hear about a brand new product, which we suspect might just be the dual-GPU Kepler card (possibly known as the GTX 690). The company will be streaming the announcement from GeForce.com so you can check out the news live on April 28th at 7:30PM PDT (10:30PM EDT).