Which one should I get??



Both are vey similar. Both are quad core and both are clocked at 3.0 GHz. The big difference is the Phenom II has L3 cache the Athlon II doesn't. I would go with the Phenom II for the L3 cache. L3 cache gives about a 10 to 15% performance gain. The L3 cache is like L2 cache its built onto the CPU its a little slower then the L2 but is larger in size. Look at the cache as a staging area for the CPU it will load data onto the cache for quick access to the CPU.