I'm upgrading from Dual Core to Six Cores How much FPS / processing speed increase?

I'm upgrading from a; AMD Athlon(tm) II X2 270 Processor 3.4GHz
To a; AMD BullDozer Six Core FX-6300 3.50GHz 8MB Cache Socket AM3+

Obviously i have next to no knowledge of what on earth i'm saying, so can somebody please explain in simple terms how this will benefit my FPS on game's such as; Minecraft, Battlefield 3, Dead space.

Minecraft
As of at the moment on max settings i can hit roughly 70 FPS fluxing with decreased particles, V-Sync off, 12 chunk render distance, no fraps open, full screen.

Battlefield 3
In lowest detail's resizeable i still only gain around 15 - 20 FPS

Dead Space
Not really sure but 40 FPS on medium setting's.

Cinema4D
Takes around 30 minute's to render a sophisticated image, shadow's, with Ambient occlusion / depth of field / physical sky / global illumination on.

Computer Start up
Take's around 1 minute roughly to get to login / boot up. Loading Gyazo, nvidia settings, comodo antivirus & razer synapse 2.0

Hopefully this is enough data for somebody to tell me how so will these item's increase in time taken / speed / FPS. All comment's contributed are greatly appreciated! Also if you / know of a video, friend etc who was recently gone through the conversion of dual core to quad core or six core + and know how it impacted there gaming experience etc, that would be great to hear!

Thanks,
Scott

Added (1). I do have 8GB Of ram

Scot

It mostly depends on RAM, but with 8 gigs you'll get a VERY noticeable difference is you enable multi-core rendering and antialiasing on. I think battlefield will run around 80-85 fps

Porter

Why upgrade on CPU? Why not upgrade your graphics card, only if you have a PCI-e slot tho.

Detra

None

Guest

Well you might notice a very great difference in performance of other things. But nt much in the game performance.
Sometimes even if you have specs many times more than the maximum requirements of the game you still get bad frame rates.
I rather suggest testing your games on someone else 's pc with good specs just to know how the games will perform with highspecs.
However you will get little bit better performance on the games but that little amout might not worth replacing the processor.

Alron Dabreo

Game performance is pretty reliant on your CPU/GPU, but mostly your GPU. So it wouldn't even be a noticeable increase.

Jose