Theoretical Question about GPU bottlenecks

Dwardu

Honorable
Dec 23, 2013
3
0
10,510
Hypothetical situation...

Lets say, I had a PC with an Intel Celeron Dual Core and a GTX 660
I am capped in <some game> at 30 fps because CPU is slow and cant utilize my 660 entirely

Instead of upgrading my CPU as I should, I upgrade my video card
What happens? Will my game perform better, worse or exactly the same?

Please do not tell me "This is stupid." because I am fully aware of this. I'm just curious, in theory, what would happen.