FRAPS is an advanced screenshot and FPS display utility in simple words. Install it and you can see the current FPS in whatever game you play. You can also save screenshots with just a press of a button. Same goes with videos, you can capture your in-game videos easily with this app.
How to install it and see my fps in my game?
1)Download from the link above
2)Install it in your pc, start it
3)Now click on FPS tab
4)Now as you can see, 'F11' is the default key to display FPS in your game, you can change it to whatever button you like
5)Start the game, and you can see the FPS in your game. It will be in one of the corners of the screen, in yellow text. You can shut it off by pressing the 'F11' key.
How to save screenshots?
1)Click on the 'Screenshots' tab
3)Start any game, press 'F9' ONCE, your video will start recording, when you want to stop recording, press 'F9' again.
4)You can find your video in 'C:\Fraps\Movies'
Feel free to ask any doubts about this or any other topic!