Windows 7 - Best Gaming CPU for 150$

I have 150$ to spend on a CPU.
For a gaming Rig. I want to get the best performance from 30-40-50 Player multiplayer Battlefield 3 (Forget singleplayer)

Ive heard the i3 2120 recommended for highest performance PER Core. But its dual core limited. I would rather go with Quad core. Ive heard Multiplayer large maps can give the i3 2120's trouble. I know gta4 wouldnt run on most dual core.

So Im trying to decide between the

AMD 980 x4
AMD AMD A8-3850 APU
AMD fx 6100

Its looking like the 980 x4 would be the safest bet.

The A8 3850 is well ahead of these chips on this benchmark page, But I guess thats non Gaming.
PassMark Intel vs AMD CPU Benchmarks - High End

I guess the 980x4 is the best bet?

Is there anyone here thats dead sure the i3 2120 can run 40 player Multiplayer Battlefield 3 better than the AMD chips?
Or will you really notice no difference?
I would imagine the AMD 980 x4 would win all around.

Sorry for the double post. I was not able to delete my last New Thread, and it became cluttered with other discussions about too many pieces. So i simplified the question.

( Mobo and other parts are not a question atm, I can get those also)

I will be pairing this new CPU , board, ram, PSU with a
Radeon 6870 HD Card.

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http://www.youtube.com/watch?v=B_d8bpupml0
http://www.youtube.com/watch?v=cCIWsc9ZoWY

980 cpu - 6870 Video showing around 40-50 FPS in these youtube videos.
With Ultra - 1900-1000 resolution. I would be happy with High 1600-1200 if it will stay at 60 fps.

Im just wondering which is going to pull out ahead under heavy 30-40 player combat in the end.

the dual core i3 2120 or the amd 980 x4.
I think ill stick with the x4. it should be a pretty close call. Gta4 and others should like the x4 best also.

Here is Tom's list, it doesn't get as specific into games. Hierarchy chart on last page of article.

Best Gaming CPU: $100-$200 : Best Gaming CPUs For The Money: January 2012

Gaming CPU Hierarchy Chart : Best Gaming CPUs For The Money: January 2012

A Guy