After 2 years of playing at (10-25 FPS) on this:

CPU:Dual Core E6500 2.93 GHz
Motherbord:A shi1ty one
Memory:4GB
HDD:No idea
GPU:VTX Radeon HD 6670 2GB 128bit.

To this:

Motherbord:ASRock 970 Pro3 R2.0
CPU:AMD FX-6300 Black Edition 3.5GHz
CPU Cooler:Deepcool GAMMAXX 200
GPU:Gigabyte GeForce GTX 660 OC WindForce 2X 2GB DDR5 192-bit
RAM:Corsair XMS3 8GB DDR3 1600MHz
HDD:Seagate Desktop HDD 1TB 7200RPM 64MB
PSU:Sirtec High Power Element PLUS 500W +80% Bronze

I also have a second Battlefield 3 account : Thor-FPS