OptiFine HD for Minecraft 1.5.1/1.5/1.4.7

OptiFine HD for Minecraft 1.5.1/1.5/1.4.7

OptiFine HD adds support for HD textures and a lot of options for better looks and performance. Doubling the FPS is common

OptiFine HD Installation
If possible start with a clean minecraft.jar and check the mod compatibility section above.
A. Easy Installation

1) Download and start...

Download OptiFine HD for Minecraft 1.5.1/1.5/1.4.7