MrBanana :
Which processor is the best
AMD FX-6300 FX-Series Six-Core Processor Edition,
AMD FX-4170 4.2GHz Quad-Core,
AMD Phenom II X4 965 AM3 3.4Ghz,
AMD FX 6100 6-Core Processor
AMD A10-5800K APU 3.8Ghz
AMD A8-3870K APU, or other for around the same price(price comparison from amazon)
Using Passmark as my benchmarking reference I've made this list of the processors you asked about the quality of... Now first, you gotta define what makes a CPU better, is it PRICE?! is it PERFORMANCE! Well I'll tell you! It's a mix of the two... So regarding that, here's there scores regarding performance. The higher number is better!
AMD FX-6300 FX-Series Six-Core: 6488 < WINNER!
AMD FX-4170 4.2GHz Quad-Core: 4842
AMD Phenom II X4: 4321
AMD A10-5800K: 4696
AMD A8-3870K: 3733 < LOSER....
Now I know you mentioned 6 CPU's, I didn't include one because it scored so low, it didn't belong on the same category of list.
Now, what is the most affordable of these?
Compiling the average pricing of these CPU's the list is as follows:
AMD FX-6300 FX-Series Six-Core: 132.99
AMD FX-4170 4.2GHz Quad-Core: 124.99
AMD Phenom II X4: 79.99 to 99.99
AMD A10-5800K: 127.99
AMD A8-3870K: 85.17
I can't decide for you, but use this information to make an educated decision. The CPU I chose for you in my recommended build was only 53.98 and would suit your needs, and remember the golden rule of PC gaming, when it comes to gaming, your GPU matters more than your CPU.