New gaming PC performing terribly

A couple weeks ago I built a gaming PC. Every time I try to play a game it is choppy. I have tried everything from Bioshock Infinite to Planetside 2 (maxed out settings). I have been trying to solve the problem by talking to some people on Tom's Hardware but I haven't had a response in a few days. I have had many suggestion from the people over there but none of them has made much of a difference. If anyone has any idea about what is the problem here it would be much appreciated. I will provide a link to my post on Tom's hardware to give you guys an idea of what I've tried so far.

http://www.tomshardware.com/answers/id-1645495/newly-built-system-gaming-performance-issues.html#10649124

Hardware: 

Case: Cooler Master Storm Scout
Motherboard: MSI 970A-G46
CPU: AMD FX-6300 (Stock clock speed)
Video card: XFX 7970 Double D
RAM: G.skill Sniper F3 8GB (4x2)
Hard Drive: 500 GB Seagate Barracuda 7200 rpm
Power Supply: Thermaltake TR2 600W


Any suggestion will be much appreciated

What are your voltage settings on your cpu and gpu?

Also what OS are you using and have you installed all the updates etc?

Make sure you have the lastest AMD Drivers installed 

If it isn't drivers it could be hardware... Try (I know this is lame but...) sythetic benchmarks maybe and compare them to others you see online? If your CPU or GPU is performing worse then others using the same software and hardware it may be a sign that you'll have to spend a few hours on the phone talking to customer service.

61c thats pretty high i think. I know the thermal threshold for the 8150 is close to that.

If that's not the maximum safe operating temp for the CPU, it's very close to it.  That's definitely a problem there.  You really want to bring that down a lot.    

It may be down to the psu i see its discontued and there are a lot of bad reviews on newegg with it.

Its only a 70% psu too with dual rails

http://www.newegg.com/Product/Product.aspx?Item=N82E16817153114

To be honest, I don't know what you mean by choppy. Do you mean it doesn't run things flawlessy at max or are you actually having problems even when turning the settings down? A Radeon HD 7970 is at great card but to be honest I would never recomment an FX-6300 for gaming. That's just my personal opinion.

Otherwise, It would be good to know more details about the problem you are having so that it can be narrowed down by someone.

I have installed AMD Drivers properly..Now it has been works favorably for me..It is feasible for all basic configrations..

61c for a cpu under load is extremely cool.