the 531 is a 3.0ghz cpu with 1mb cache and 800mhz fsb. while the well known 805 is 2.667ghz cpu with 1mb x 2 cache and a 533mhz fsb. both cost around the same now and objectively which would be a better buy? I know that the 805 has a HUGE overclock potential, but it only has 533mhz fsb and thats whats stopping me...
dont worry about it.. when you overlcock it the fsb will raise.. just get the 805.. u wont be disipointed..