4GB GT630 1080p Gaming GPU bottleneck?

[Guest]

I own a 4GB GT630 which I game with at 1080P on incredibly low settings on most games. I believe that the 4GB of VRAM means that I can turn up the texture resolution (Which I can) but the moment I try to change lighting/shaders from the lowest setting, my frame rate drops to unplayable levels. Is the GPU the bottleneck in this situation?

 

[unknownofprob]

Your graphics card core is so weak, that is the issue. You may have the Vram, but it won't help that card. I wouldn't as such call it a bottleneck, just not capable.

 

[cookybiscuit]

The large amount of VRAM isn't doing anything for you when the GPU itself is so slow.