When running the snapshot with 3 GB of RAM allocated and a view distance of 32 chunks, the game only manages to reach ~35 FPS when looking out into the distance. I checked my GPU usage and it was only at 33% utilization. CPU was at a similar level. Minecraft had only allocated half of the RAM available to it.
VSync was on, framerate limit was set to unlimited. Graphics settings in minecraft at maximum.
Environment
Windows 8.1 64bit
Java 8u11 64bit
NVIDIA Video Drivers version 377.88
Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report (
[minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt) here.