Hello, I have this problem that every game stutters with this GPU, I know that it only has 1GB GDDR5 but I had geforce gt 630 2gb ddr3 and it did not stutter. I played games like battlefield 4 (lowest settings) with no stutters, now with this gpu fps is high but it stutters a lot to like 1fps for split second. It does not overheat. Why geforce gt 630 was better than this? I do not understand. I have i5 2500 and 4GB of ram. My HDD is very old, like 6-7 years, can that be a factor?