NASA, in conjunction with the US Air Force Research Labs, has developed a new flight simulator that is much better than the previous iterations used by the Air Force and NASA for training. Most flight simulators offered up a 20/40 vision, which is worse than the standard 20/20 vision, or the 20/13 that pilots usually have.
This makes training a bit difficult because images displayed in the flight simulator are blurry. The latest simulator developed by NASA and the US Air Force Research Labs displays images in 20/10 vision, so those with good sight will not see blurry images for up to twice as far away as most people.
The new flight simulator makes use of nine 4K projectors that are driven by numerous NVIDIA Quadro GPUs and Quadro Sync cards. Of course, they have massive amounts of frame buffers because the flight simulator pushes out 60 frames per second. NASA has been able to reduce the number of computers required from 36 to just five.