At what percentage will the video card work?

Question

Processors

My processor is: : AMD Athlon(tm) 64 X2 Dual Core Processor 4800+
I want to buy a graphics card : Palit GeForce GTX 750
What percentage will the graphics card run? Will I be able to play modern games at least at the minimum of 40 fps?
Suitable for motherboard : M2N4-SLI

Answer 1

At what percentage will the video card work?

The question doesn't make sense.

Will I be able to play modern games at least at the minimum of 40 fps?

No, the processor is very weak, it will not pull.

Answer 2

with the same success, you can just look at the screenshots of the game