Don't believe reviews that online websites produce for new reading material. The i3 and Pentium CPUs are NOT gaming CPUs, period! They are low-end CPUs for crappy PCs for businesses to put in their employees PCs to run Office. They are also for OEM distributors to build low-end laptops and desktops in Best Buy for casual PC users.
If you are on a budget (even if not, AMD have great CPUs, Bulldozer is history!), get an FX CPU for gaming. The FX-6300 is a high end CPU period. It will last for years for gaming.
If you don't like AMD, then get at least an i5. Do yourself a favor. With either an i5 or FX, you will not be waiting forever for Windows installation, Windows, updates, program installations, etc. You are going to do more with your PC than game, remember that.