Computer processors for PC like devices fall into four broad categories, starting with the smartphone/tablet, then the notebook, the desktop and finally the extreme desktop/server. These segments have different cadence formats from each of the companies that compete between new designs. For longer cadences it makes sense to launch an improved product in the middle of that cadence taking advantage of minor production improvements. To that end, Intel is updating their June 2013 Haswell CPU line with a ‘Haswell Refresh’ – 20+ CPUs aimed to be faster at similar price points to the original Haswell release.
Full review at AnandTech