jdwii :
No that is not true at all, Intel simply disabled overclocking on those other parts to save money
How exactly does Intel save money from a CPU not being able to overclock?
And it was never disabled. You have been able to OC with the BCLK even since Sandy Bridge. Problem is that with some lines they had the BCLK tied in with the clock generator for the PCIe and SATA clock generators. That caused instability in those parts since they are only designed to run at 100MHz, not faster. Haswell moved to separate clock generators which allowed for some BCLK OCing but not much.
Do you not remember the Pentium D 805? that OCing champ of its time? Was $150 bucks and overclocked like crazy.
@turkey3_scratch, Intel has been doing binning for ever and in any lineup the top chip is normally going to be the best of the batch. While a lower end one can possible clock as high it is normally not as stable.