Well, I'm trying to decide for an affordable gaming PC only basically, whether to get the X2 BE or Athlon X4. I understand that the cache is less with the Athlon, but for gaming wise, I want to know if I can't unlock the 2 cores with the Phenom II X2, will it still be worth over getting the Athlon X4. I really don't understand if cache actually helps with gaming or not. I've also found out a few Phenom II X2, won't unlock all 4 cores. I'd be getting the Phenom BE 555/560 or Athlon X4 635/645. I'm also getting a 880G gigabyte Mobo that says you can unlock hidden cores. I'd be running games like BO and BC2 basically.