Why is it lagging so bad!!??

Ok so when i play games like nfsu and san andreas and others it lags realy badly i mean its like a photo slideshow ^^.. anyways this guy on youtube got the same comp as me and he got videos recorded playing alot of games whitout any lagg at all and he even told me that my comp is alittle newer then his and he thinks its wieard its lagging... anyways here are my computer specs.. iv installed grapich driver from the ASUS disk and directx9.. hope to get some good answers

http://img196.imageshack.us/img196/7388/compp.png


and heres the link to the videos of that guy whit the same specs

http://www.youtube.com/watch?v=3Tz [...] ED&index=1

http://www.youtube.com/watch?v=6S- [...] ED&index=0

It's your GPU that is causing the lag. try the lowest graphics game ettings.

well iv tried the lowest grapich setnings in all the games too but barly makes any difference :S... anyways im planning on buying a grapich card anyone got any tip on what to get.. not to fancy tough

Wow - you have a terrible graphics card. If you can't afford to replace it, set all games to the lowest possible settings, but if possible, the best thing to do would be to replace your card. Something like a 4670 or 9600GT would massively improve your framerates.