Run the game in fullscreen as opposed to windowed.
However if you are still encountering performance issues, here are some steps to try. Battlefield 3 Performance GuideīF3 is almost a decade old now, so most modern PCs will have no trouble at all running the game maxed out with high frame rates. There is a Battlefield 3 Steam release, as well as being available through EA's own Origin and their game subscription service EA Play. As an old title, the Battlefield 3 download size isn't too big, at around 20GB. Whereas, an Intel Core 2 Quad Q9000 is recommended in order to run it.
To play Battlefield 3 you will need a minimum CPU equivalent to an Intel Core 2 Duo T7250. Additionally, the game developers recommend somewhere around 4 GB of RAM in your system. The minimum memory requirement for Battlefield 3 is 2 GB of RAM installed on your computer. Furthermore, an NVIDIA GeForce GTX 560 is recommended in order to run Battlefield 3 with the highest settings. The Battlefield 3 system requirementsask for a minimum graphics card equivalent to an ATI Radeon 3000.
