More RAM won't fix your Minecraft stutter.

Probably not. If you’re already allocating 8–10GB to Minecraft, adding more system RAM won’t help the stuttering.

The stutter you’re seeing in heavy modpacks like All the Mods or FTB is almost never because you ran out of system memory. It’s because of Java garbage collection pauses, slow chunk loading, or the tick rate bogging down from too many entities and machines.

Java Minecraft is notoriously bad at managing memory. When you give it more RAM, the garbage collector takes longer to clean up, which can actually make stutters worse. The sweet spot is usually allocating 6–8GB for large packs. Going past 10GB often causes more problems than it solves.

If you want to reduce stuttering, tweak your JVM arguments (use something like G1GC, adjust -XX:G1NewSizePercent, and add -Dsun.rmi.dgc.server.gcInterval=2147483646). Or install performance mods like Sodium, Lithium, and Phosphorus (if the pack supports them). Or upgrade your CPU’s single-core speed—that helps more than RAM.

Save your money unless you’re also running a dozen other memory-hungry apps while playing.