How to give minecraft more ram

How To Allocate More RAM To Minecraft

Easy and more than one way to do it

Despite its low graphical style and relatively simplistic gameplay, Minecraft can be an intensive application. There’s a lot going on in the background, especially if you start playing around with redstone-heavy builds.

If you throw mods into the mix, the standard amount of RAM Minecraft needs to run suddenly becomes nowhere near enough. Without enough RAM, you’ll start to encounter stuttering, crashes, and other issues that make the game almost unplayable.

The good news is that it’s relatively easy to allocate more RAM to Minecraft. The other good news is that there is more than one way to do it.

Make Sure You Have RAM To Spare

The first step is to find how exactly how much RAM your PC has. This is easy.

Minecraft calls for a minimum of 2 GB of RAM, although the recommended specs call for 4 GB. If you have more than that, you’re golden. Now you can allocate all the RAM Minecraft needs to quench its thirst.

Method One: Allocate RAM From The Default Launcher

The original, default Minecraft launcher has changed over the years, but you can still allocate more RAM to what Minecraft uses.

-Xmx2G

It’s possible to let it use all of the RAM you have available, but whether it actually takes advantage of full utilization depends on if you have anything else running and open in the background.

Method Two: Allocate RAM From The ATLauncher

If you have downloaded mods or played a lot of Sky Factory, then you’re likely familiar with the ATLauncher for Minecraft. The ATLauncher makes setting aside more RAM even easier than with the default launcher, especially since it means you don’t have to work with any code to make it happen.

Method Three: Allocate RAM Using The Twitch/Curse Launcher

You can also play a variety of Minecraft mods (or normal Minecraft) via the Twitch launcher. Changing the settings is just as easy in this launcher as in the ATLauncher above, but the initial method for reaching those settings is a bit different.

Allocating more RAM to Minecraft can (and in many cases will) make Minecraft perform better, but there are situations in which allocating too much RAM will decrease overall system performance.

Other areas of your PC require RAM, too. While these won’t make a huge impact if they aren’t running at the same time as a game, it’s often a good idea to allow at least 1 GB of RAM for other processes not related to gaming.

If you change your RAM settings and you still do not see the performance you expect—or your PC reports an inaccurate amount of RAM—it can indicate other issues with your memory. It’s a good idea to occasionally check for bad memory.

The good news is that even if you do have an issue with your RAM, swapping it out is simple. In fact, if you want to see even better performance, it’s worth considering purchasing more RAM for your system, especially as memory prices continue to fall.

Patrick is an Atlanta-based technology writer with a background in programming and smart home technology. When he isn’t writing, nose to the grindstone, he can be found keeping up with the latest developments in the tech world and upping his coffee game. Read Patrick’s Full Bio

Allocate more RAM to a Minecraft Server (RAM Upgrade)

While Minecraft in its basic version gets along just fine with the allocated 2 GB of RAM, some mods may make it useful to increase the amount of RAM allocated. If you’re experiencing crashes, playing with elaborate mods or just want to improve the performance of your game, here’s how to give your Minecraft more RAM. On your Mac or PC, you can use the default launcher as well as various third-party launchers. If you want to add more RAM to your Minecraft server, you can find instructions here as well. G-Portal makes it very easy to allocate RAM.

Allocate RAM on a GPORTAL Minecraft Server

With a Minecraft server from G-Portal, you always also book a certain amount of RAM. You can choose from 2GB, 4GB, 6GB and up to 18GB, if you create a custom configuration. With this, you should be prepared for all modpacks and high player numbers.

If you decide on a certain modpack, a certain amount of RAM is recommended. If you need more RAM later on, you can add it at any time.

Quite simple, right?

How to give Minecraft more RAM – Basics

Without a G-Portal server, the whole thing becomes a bit more laborious. You should first find out two things:

1. How much RAM do I have available?

2. Which version of Java do I have installed?

If you allocate more RAM to the game than the server or PC have available, it can lead to crashes, just like if you allocate too little RAM to Minecraft. Also, if you don’t have the latest version of Java installed, you may not be able to allocate more than 2 GB of RAM to the game. Unfortunately, if you run Minecraft on a 32-bit system, you won’t be able to allocate more than one gigabyte of RAM at all. Also, be careful not to allocate more than half of your available RAM to Minecraft, as it is also needed by your system programs.

Allocate more RAM with the default launcher

Allocate more RAM with third party launchers

The large modding community around Minecraft has created other launchers that can be used to easily install modpacks and change settings. Examples include the “ATLauncher” or the “Technic Launcher”. However, with all these launchers you can add more RAM to Minecraft in a similar way:

Allocate more RAM to a Minecraft server

Allocating more RAM to Minecraft on your own server is a bit more complicated than with a server from G-Portal:

1. Create a text document on your Minecraft server.

2. Enter the following command:

For 3 GB of RAM it should look like this:

3. Save the document under the name “run.bat”.

4. Search for “server.jar” on your Minecraft server and remove the abbreviation “.jar” in the file name.

5. Now run the “run.bat” file you just created.

We hope you succeeded in dedicating more RAM to Minecraft and wish you a lot of fun with your mods and hopefully a smooth gaming experience.

How do you allocate more RAM to Minecraft?

There is a lot of lag when I play Minecraft. I think this is due to the low amount of RAM I’ve allocated to Minecraft. (495MB)

How do you allocate more RAM to Minecraft?

I checked my other computer (Intel i5 Core) and it had the same amount of RAM allocated to Minecraft. However, Minecraft did not lag on that computer.

After I installed Optifine on this computer, the lag stopped (I don’t know why cause I read that Optifine splits the load onto 2 cores, but I have only one core (At least I think so, a sticker on the laptop says Intel CORE i7)).

8 Answers 8

Before you allocate RAM there are some things you should know:

So it is recommended you have a x64 system to allocate as much RAM as possible. Try an leave at least 1GB for the general system processes and stuff like that.

Here is how you allocate RAM on a windows system:

So basically, the xmx is your maximum RAM your allocating and your xms is the minimum ram it should use.

Here is an example of an actual run.bat:

Or if you have assigned Java in your system variables

Obviously don’t just copy my code, as you need to find out where A) Your javaw.exe is located and B) where your minecraft.exe

Remember: 1GB = 1024MB and 0.5GB = 512MB

Old Launcher Introduced in 1.6

Ensure that you have the correct path to your java and that you have JDK installed.

Latest Launcher

ALTERNATIVELY

Simply download the tekkit pack and there is an option to play vanilla Minecraft. Simply select the «Cog» or settings icon in the top right corner and it will give you an option to allocate RAM if other methods are failing. Good Luck

Also if you are having trouble doing any of this, just simply google it and there are literally 100s of posts similar to this and allot of tutorials.

It is explained in full by this video (and the following text was found here with edits as found in the comments).

In essence this video denotes 3 main steps:

Moving Minecraft to a folder. (Make sure this is the actual minecraft.exe and not a shortcut)

Creating a text file using note pad, and write out (this example is for 2GB of RAM):

Note: this example uses 2GB of RAM, for more or less RAM add intervals of 1024 for each additional GB.

If this gives you an error as well then you might want to download the java SDK, it gives more functionality.

Running the bat as administrator might help too.

This one is for spoutcraft but you can just replace it on minecraft launcher’s exe name and be done with it. If something goes wrong you can probably remove biased locking and string cache, along with tiered compilation and also setup parallelGCThreads to be equal your amount of cores.

Do you need to allocate more RAM? Often the default heap size is fine for your machine. Minecraft is unusual because it tends to be CPU-bound rather than GPU- and memory-bound. But it is possible your Java heap is too small.

To determine whether your Java heap is big enough:

As a rule of thumb, do not make the heap bigger than your actual physical RAM. You will just cause the application to begin swapping or paging.

Minecraft Forums

[Tutorial] Allocating More RAM to Minecraft Servers

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al·lo·cate
ˈaləˌkāt/

How to allocate more RAM for Minecraft Servers:

Usually, servers work fine with the stock amount, assuming you don’t have too many players.

Usages of more memory:

What is RAM?

RAM stands for Random Access Memory. It is the memory space that applications use to work in, like the desk space you have in your office cubicle or something. Most laptops have 2-8GB of it, and average gaming rigs have anywhere from 8-24 (on average, anyway. Some can have up to 32 or 64). The amount of RAM an application has determines how fast it can possibly work.

Notice:

This tutorial requires that you’ve installed a full Java version, (Java SE) on your system. Else it might not work right. Installing the right Java version (also important: 32/64 bit) often solves many problems.

Instructions:

Warning:

— The server will not function if the allocated RAM is more than installed.

— It is recommended to use half or less. More than half could result in a slower system.

— ALWAYS WATCH YOUR MEMORY AND CPU USAGE IN TASK MANAGER (if on OS X, use Activity Monitor)

— I’ve been told that 32-bit Java cannot handle more than 4GB of RAM allocation.

Syntax:

How do I check how much RAM I have installed?

On Windows, search «dxdiag» and use that. On OS X, click on the little apple on the top left and click About. or whatever OS X says these days.

How to Give A Server More RAM?

avrona So to celebrate the lauch of 1.11, I want to create an 1.11 SMP for my YT channrl. When I did SMP’s below, it had max 3 people, which the default server settings were fine handling, However for the new one, we are planning to have at least 10 people, so we want to give the new server we are setting up more RAM than the defualt. How do I do that?

What you want to do is create a notepad file in your server folder. Open it up and put in

Like I said a few times before I already done it.

avrona So to celebrate the lauch of 1.11, I want to create an 1.11 SMP for my YT channrl. When I did SMP’s below, it had max 3 people, which the default server settings were fine handling, However for the new one, we are planning to have at least 10 people, so we want to give the new server we are setting up more RAM than the defualt. How do I do that?

What you want to do is create a notepad file in your server folder. Open it up and put in

Like I said a few times before I already done it.

avrona So to celebrate the lauch of 1.11, I want to create an 1.11 SMP for my YT channrl. When I did SMP’s below, it had max 3 people, which the default server settings were fine handling, However for the new one, we are planning to have at least 10 people, so we want to give the new server we are setting up more RAM than the defualt. How do I do that?

What you want to do is create a notepad file in your server folder. Open it up and put in