The Ultimate Guide to Solving High RAM Usage Problems When Playing Rust


What factors contribute to the high RAM usage on my computer when playing Rust?

I have a 16GB 2133MHZ RAM and a RTX 2060, Ryzen 7 3700x 3.6 GHZ, Viper Patriot 16GB 2133MHZ system. When I play Rust, the game shows that it uses 6000GB of RAM, but the total RAM usage on my computer is 13GB. I also have Spotify and Discord open, but they only consume about 300MB of RAM each. I checked the background processes and none of them seem to use a lot of RAM. The highest one is around 65MB.

I want to know how to reduce the RAM usage on my computer when playing Rust. I tried using Razer Cortex, but it did not help. Is this high RAM usage normal or indicative of a virus or hardware problem? How can I optimize the performance of my computer and the game?


Rust is a popular survival game that requires a lot of resources to run smoothly. It is not uncommon for Rust to use up to 6GB of RAM or more, depending on the settings and the server. However, if your total RAM usage on your computer is 13GB out of 16GB, you might be wondering what is causing the extra RAM consumption and how to reduce it.

There are several factors that can affect the RAM usage on your computer when playing Rust. Some of them are:

  • Cached RAM: Cached RAM is the memory that your system uses to store frequently accessed data for faster access. Cached RAM is not the same as used RAM, as it can be freed up when needed by other applications. However, some tools may report cached RAM as part of the total RAM usage, which can be misleading. You can check how much cached RAM your system is using by opening the Task Manager and looking at the Memory tab. If you see a large amount of cached RAM, you can try to clear it by running a command prompt as administrator and typing `ipconfig /flushdns`.
  • Memory leaks: Memory leaks are a type of bug that occurs when an application fails to release the memory it has allocated after it is no longer needed. This can result in the application using more and more RAM over time, until it causes performance issues or crashes. Memory leaks can be caused by poorly coded or outdated software, drivers, or malware. To identify and fix memory leaks, you can use tools such as Process Explorer or RAMMap to monitor the memory usage of each process and see which ones are consuming the most RAM. You can also update your drivers, scan your system for malware, and uninstall or reinstall any suspicious or problematic applications.
  • Game settings: The game settings of Rust can also have a significant impact on the RAM usage. Some of the settings that can affect the RAM usage are the graphics quality, the render distance, the shadow quality, the object quality, and the anti-aliasing. Generally, the higher the settings, the more RAM the game will use. You can try to lower some of the settings to see if it reduces the RAM usage and improves the performance. You can also use the console commands `perf 1` and `gc.buffer 2048` to display the FPS and the memory usage of the game, and to set the garbage collection buffer size to 2GB, respectively. These commands can help you optimize the game and prevent stuttering or lagging.
  • Other applications: Besides Rust, there may be other applications running on your computer that are using RAM. Some of these applications may be essential for your system, such as the antivirus, the firewall, or the operating system itself. However, some of them may be unnecessary or redundant, such as background processes, startup programs, or browser tabs. You can try to close or disable any applications that you are not using or that are not essential for your system. You can also use tools such as CCleaner or Autoruns to clean up your system and manage your startup programs.
  • By

following these steps, you may be able to reduce the RAM usage on your computer when playing Rust and improve the performance of your system and the game. However, if none of these steps work, or if you experience frequent crashes, blue screens, or errors, you may have a hardware problem or a faulty RAM stick. In that case, you should contact a professional or a technician to diagnose and fix the problem.

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