GPU and RAM cause lag/bottleneck?

divine123

Honorable
Feb 8, 2013
23
0
10,510
Hi my name is paolo, my PC got bosd once, it never happened again though, but sometimes my pc is hanging for like 5-10 secs. I checked/diagnosed my HardDisc and Ram. both are good. So I got a bad feeling its the GPU, I dont know but the gpu for me looks just fine, and works fine, the temperature is perfect too. I just dont know if theres a way to diagnose it, cause i think there is no way to do so.

some one told me that maybe I'm lacking with RAM, I got two sticks of RAM each is 1GB DDR2 667mhz and my GPU(Galaxy GTX 260+) got 896mb of ram. would this cause the hanging/lag?

some say I need a bigger Ram like 4GB or so and a bigger MHz like 800 above.
I just want to ask for confirmation guys.