I get that fusion drive will improve boot-up time, file transferring speed and when opening programs. But I've read a couple of posts that fusion drive will improve the GPU's performance. Is that true? I'm thinking about buying the high end 21.5" iMac and possibly with fusion drive. I just think that 200-250$ is a bit of an overkill if it isn't really improving gaming performance. I'm not transferring huge files or anything and it's mainly for light-medium gaming. TLDR: Is the 200-250$ extra for the fusion drive worth if gaming-wise? Or will it even improve the GPU-performance?