The dust seems to have settled down, after AMD's launch of the Radeon HD 6990, extending the red-team's performance lead previously held precariously by the Radeon HD 5970, to the GeForce GTX 580. It looks like NVIDIA will challenge the performance leadership with GeForce GTX 590, a dual-GPU graphics card that uses two GF110 GPUs (the ones on GTX 570 and GTX 580), for an SLI-on-a-stick solution. Rumors of NVIDIA working on this card became concrete as early as in November 2010, when NVIDIA's reference board became public for the first time.