Man, Your motherboard [MSI 970A-G45] has AM3+ Cpu Socket. So, You can get Fx 8350/Fx 9370 or better cpu with a AM3+ Cpu Socket for that motherboard. What do you mean by saying would my motherboard cause any problems?

because I often have serious fps drops in several games and I'm pretty sure it's caused by the cpu and not the gpu and I thought that it might be the mobo

That gfx is a bit slow for it. I got this cpu and it's only my gfx slowing down on things.

FX-6300 or 6350 are faster

You wouldnt notice much difference buddy. :)

And better is FX-4300 or FX-6300

i see..i know had 3 choice..fx-4170,6200 or 8120..that the only cpu that had sell in my place and also within my budget..so which one are better?

ok guys..if got 6300/4300 at my place surely i got one of that..for now 6200

6200 @ 3.8ghz is great for gaming and with a 6970 2gb is great i would of gone the 8 core fx series but when i looked at the benchmarks between the 6200 and the 8150 at the time they wasnt much difference though at that time windows 7 didnt support 8 cores as the update didnt come out yet but ive noticed saints row 3 works like a charm now and with my new ram i want to check out shogun 2 hopefully i get it playable if not ill go and buy a grapphics card when 4 gig is the standard but that will be a while as 3 gig is a standard in the high end cards :P

Sure yeah ;)

I suggest buy the AMD Radeon HD 7850 or maybe a few bucks higher buy the HD 7870.

but if you're on a tight budget then I suggest buy the AMD Radeon HD 6870 or HD 6950 they both work perfectly fine. :)

6100 AND 660ti definitely

get this one and have the AMD Radeon HD 6870, the Vision program of AMD will definitely come up to a smooth in High Definition videos.

Nope, This processor only supports AM3+ socket. m4n68t le v2 only supports AM3, so you can't put this processor in to your motherboard :(

i dont know a lot about computers,can you tell me some cpu's with a am3 socket that are good for gaming?

ty :D