When asked this question many people will say "to make your computer faster." It is true, upgrading a laptop's ram will make it faster but not always by much. For example, if you are buying a laptop with say 12GB of ram and want to upgrade that to 16 then the speed difference would be barely noticeable in most cases--unless you're doing tasks like recording video or uploading big files simultaneously on your computer without closing any programs. And just to be clear, if you are already using all of your laptop's ram then the only thing you will notice is for it to take longer to load programs because they have swapped data from RAM onto a hard drive.