This guide will tell you how to get the most performance possible on Minecraft. This guide will also assume you have downloaded the latest Minecraft Launcher (as of 11/6/20).
If you don't have a 64-bit computer (required for this), you really need to buy a new PC.
- Go here: https://www.java.com/en/download/manual.jsp
- Download "Windows Offline (64-bit)".
- Run it as admin and follow the instructions.
- Go to the Minecraft Launcher.
- Create a new profile.
- Name it what you want, set the version, etc.
- Click "More Options", and set the Java Executable to
C:\Program Files\Java\jre1.8.0_???\javaw.exe
(the???
is the version number). - Click "Create".
Now you have 64-bit Minecraft, which means it can take advantage of the performance boosts we are giving it.
Only do this chapter if you are:
- Experiencing slowdowns (low framerate, stuttering, etc.)
- Playing modded Minecraft
- Go to the Minecraft Launcher.
- Edit the profile you created in Chapter 1.
- Click "More Options" (if the JVM Arguments aren't shown).
- In the JVM arguments, set
-Xmx2G
to-Xmx?G
(the?
is the amount of RAM you want). Note that you shouldn't add too much RAM, or else problems may occur!