The chipset at the heart of this Gigabyte GA-G31MX-S2 is the Intel G31 which sits squarely at the bottom of the Intel 30 series of chipsets. There are currently seven members of the 30 clan with model codes that describe their intended market and performance. A prefix P is for Performance, Q for Corporate (Quality we reckon) and G for Graphics, while 35 is high-end, 33 is mid-range and 31 is low-end.
When X38 launches next month it'll be classified as an Xtreme part that is super high-end with support for PCI-E 2.0 while the relative positions of the existing chipsets will remain unchanged. Between them they offer a huge variety of features - more than any chipset family I can think of off the top of my head, although Riyad may have views on this one.
Here's a brief chipset summary:
Although P31 and G31 have model names that suggest they are bang up to date they appear to be technically inferior to P65 and G965 so with that in mind let's take a careful look at this Gigabyte.