If you have been browsing around for reviews on the Intel Z77 chipset mainboards and it’s processors, you would have noticed that manufacturer’s poster boy always posts excellent scores in overclocking.

This time round, the emphasis is all on the memory overclocking portion of the processor. If you noticed, most of the CPU-Z screen shots reveal that these tests were all done using Engineering Samples aka (ES).

Well, different CPUs are slightly different, perhaps a MALAYSIA differs from COSTA RICA.

The fact is that, retail products we have on hand doesn’t seem to overclock even at DDR3-2400 even with the most relaxed timings. The same ES is able to do so.

This is not conclusive though. My advice is that testers be equipped with retail processors. Try it out and see the difference if any.