NVIDIA should launch mid-range counterparts to the imminent GeForce GTX 480 in roughly two months' time, according to a new roadmap. Cards based on the new GF104 architecture should ship as early as June and would, as is often the case, scale down the design but keep its feature set. Its fastest variant, the GeForce GTS 450, would have just 256 shader (effect) cores and a 256-bit memory bus versus the 448 cores and 384-bit bus of the GTX 480, but it would theoretically outperform the upper-mid-range Radeon HD 5830 and cost 200 euros ($268).