Similar video cards are often available in versions with more than one memory size. The GeForce GTX 680 is an example, and comes in both 2GB and 4GB variants. With computer components more is often better, but does doubling the memory on a video card like this actually help with game performance – and if so under what circumstances? Although single monitor resolutions only go so high, multi-monitor configurations via NVIDIA Surround or AMD Eyefinity allow for much higher resolutions where larger amounts of video memory may improve performance.
