GTX 260 Stuttering/Frame drop when playing games PLZ HELP!!!

[Hussein Mansour]

Hello, I have built a computer before and chosen to upgrade the graphics card to which I did because I wanted a smoother gameplay on my simple games ( LoL and CSGO ) they are not really graphics demanding and I thought a GTX 260 would do the job. I have gotten the GTX 260 from Gainward its the Golden Sample edition and I load up a game and every 2 minutes I get frame drop to about 1/3 fps and there is a lot of stuttering and I can't take it. Please help me I can't tell if its my drivers or my system is being bottlenecked as I never really faced these problems with my old 8400GS. My Nvidia Driver is updated to 341.81. Thank you for your help

My system:
Custom Case
AMD Athlon 64 X2 Dual Core @ 2.51GHz
160GB and 60GB HDD
Gainward GTX 260 Golden Sample
Brand New EVGA 500W 80+ PSU
DVD drive

Also can you recommend drivers as I did not receive a driver disk. So if you know what drivers came on the CD please let me know and I will try them out

 

[stavrosmast]