1. Intel 3.3GHz Core i3-3220
The top-selling x86 chip for 2013 according to the NPD Group may come as a surprise, as the processor has fewer cores than most processors on this list. But the Intel Core i3-3220 dual-core Ivy Bridge processor, which was released in the third quarter of 2012, is still a popular choice for affordable, entry-level desktops. The chip boasts 3 MB of Intel Smart Cache and comes with Intel HD Graphics 2500. While the Core i3-3220 lacks Intel's Turbo Boost feature, the dual-core process has an attractive price tag of just $125.