Is upgrading my video card worth it with my processor?

[castle770]

I have been getting horrible FPS while playing certain ARMA 3 multiplayer games (7-10 fps). I am able to run it smoothly on single player, and other games are decent on multiplayer. I am looking to upgrade my video card, but Im not sure if its worth it with my processor and other current hardware. Help with a new video card, or advice on the pro's and con's of my current setup would be great.

Radeon HD 4850 - video card
GIGABYTE GA-MA78LM-S2H - motherboard
AMD Athlon II X3 440 Processor 3.0 GHz
4 GB Crucial Memory
Windows 7 64 bit
600w power supply
500GB Hard drive

 

[ACTechy]

Yes, your graphics card is lacking, but so is your CPU and RAM. How much money do you have for an upgrade?