Battlefield 4 searching for bottleneck on my system

[Kaspartin]

This is my system: Operating System:
Windows 7 Ultimate 64-bit
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: P67A-UD3-B3
BIOS: Award Modular BIOS v6.00PG
Processor: Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz (8 CPUs), ~3.7GHz
Memory: 8192MB RAM
Available OS Memory: 8176MB RAM
Page File: 1976MB used, 14373MB available
Windows Dir: C:\WindowsDirectX Version: DirectX 11
Card name: NVIDIA GeForce GTX 660

I am trying to run Battlefield 4. And I have run it in 32bit and 64bit mode. From all the variants from Low graphics setting to Ultra. And all I get is 20-40 frames per second, and with a lot of hickups in he graphics. I get the same fps in low setting as I do un high setting....almost.

Any suggestion?

 

[dottorrent]

The GPU is most likely the bottleneck. Up to an AMD R9 280X for a big performance increase.