Based on Wikipedia, a bottleneck is a phenomenon where the performance or capacity of an entire system is limited by a single or limited number of components or resources.


In short, if your processor is weak (probably dual core), but you have a high end graphic card, your processor will limit the power of your graphic card.

In other words, your weak processor limits the performance of your graphic card.

Download the program called "Fraps".

Start the program.

Play the games.

There's a yellow number shown on the game.

30 FPS is the minimum for smooth gameplay.

Less than 30 FPS is considered lagging, less than 20 FPS makes the game feels like a slide show and it makes u feel like vomiting.

More than 30 FPS is good.

LOL. I just answered your question.

You can run Battlefield 3 at medium settings. I guess your laptop runs at HD+ resolution of 1600x900. Try to lower down your settings if you want to get smooth 30fps and above.