Minecraft 1.8 creates a bunch of horribly corrupt chunks after a certain radius from 0,0. This happens in both survival and creative mode, and is not fixed by re-logging. These corrupt chunks render the game as good as unplayable.
Environment
Windows 8.1 x64, Java 8 + latest web version, allocated 4096MB of memory through launcher, 2 AMD 3gb graphics cards
Dupe of MC-62958