Be careful when installing new video drivers.
In some cases, many as a matter of fact,the new driver won't help boost frame rates because of refresh rate of monitor etc.
If you're getting 60FPS at the moment.....and the refresh rate on your monitor is 60......that's the best you'll do. Frame rates are refresh rate bound. Even if you do install a so called updated driver chances are very good your frame rate will not be any better.
Also.....read the "readme" files on the new driver. Usually all they are, are patches made to correct problems on specific games.
Also....I know some say "ya don't have ta uninstall the old driver"
Always uninstall the old driver. If not you'll very likely have a system that's looking in the registry at more lines and commands then it needs to. I've had trouble because I've not uninstalled old drivers. Take the time to do so....it will payoff in the long run.
And.......the adage "IF it ain't broke don't fix!" applies here. Check your refresh rate first (setting for monitor). If your monitor can handle it raise the refresh rate. Always check first if your monitor can handle a raise in refresh rate before trying it.
Coz if you don't, and raise your refresh rate anyway......your FR could go to 0.
Just a word of caution folks. New drivers help some PCs', but don't help the majority of them.