The more physical memory your VPS has, the more applications you will be able to run at the same time. Some apps require plenty of RAM even if nothing else is running on the server, even though they might not require high Processor speeds or lots of disk space. In case your web server runs out of memory, it shall stop responding and the websites and the offline applications that you host on it shall not perform properly, as their software components won't load since there will not be any free memory. In this light, we offer a RAM upgrade for our Virtual private server plans, thus if you notice that your machine is close to the limit, you can take full advantage of this upgrade without upgrading the whole package and paying for resources which you won't use. In this way, you'll be able to guarantee the proper performance of your scripts and stop worrying that your visitors shall see errors or will be unable to open your websites at all.