AMD FX-9590 Eight-Core Processor 4.7GHz
This is just a tremendous CPU for overclocking and it offers excellent performance and speed even right out of the box. It's an 8-core processor with 8MB of L2 cache memory which keeps it running quick and reliable even when you have a lot of things happening at once. It runs at 4.7GHz, which is very good just for a standard frequency. Overclocked, this CPU commonly gets up over 5.0GHz and is incredibly fast when properly boosted. The heatsink and fan that are included with this chip aren't that impressive even for the standard setup; if you plan on overclocking this processor, you definitely need to pick up an aftermarket option and you'll want to use liquid cooling for really high speeds. The price on this processor makes it a solid value but the power requirements on it are very high; for overclocking you’ll need a very powerful power supply.