Do I need a new graphics card or?

So I have my gaming pc. It runs fine but when I play a game like pubg and when an intense moment where a lot happens with shooting goes on it lags a bit and is annoying. I have 8gb ram and an i7 processor so I think that’s fine. My graphics card is a bit older it os the gtx 660 ti. Is the graphics card the problem... show more So I have my gaming pc. It runs fine but when I play a game like pubg and when an intense moment where a lot happens with shooting goes on it lags a bit and is annoying. I have 8gb ram and an i7 processor so I think that’s fine. My graphics card is a bit older it os the gtx 660 ti. Is the graphics card the problem in this scenario when it lags(i know it’s not the internet).
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