For Windows 7, OptiCraft (OptiFine + BetterFPS + FoamFix) is the undisputed champion.
The Opticraft Network uses custom plugins to provide unique gameplay elements across its servers: Custom Ranks opticraft minecraft windows 7
If you own a Windows 7 computer and love Minecraft, you do not need to throw away your hardware or suffer through single-digit FPS. – combining OptiFine, BetterFPS, and careful JVM tuning – transforms the experience. You will enjoy smooth, stutter-free gameplay at 60 FPS on machines that can barely open a modern browser. For Windows 7, OptiCraft (OptiFine + BetterFPS +
Note: In the Minecraft community, "OptiCraft" is often synonymous with installing OptiFine, the essential mod for performance. For Windows 7