System Requirements for Five Nights at Freddy's 3. In order to run Five Nights at Freddy's 3, your computer should have at least the following specifications: an operating system such as XP, Vista, Windows 7, or Windows 8; a processor with a minimum speed of 2 GHz, such as an Intel Pentium 4 or AMD Athlon or equivalent; a minimum of 1 GB of RAM; a graphics card with at least 1 GB of memory