I'm building a new PC with a Core i5 3470 , and I have the two options of buying either the Gigabyte GA-B75-D3H (cheaper) or Gigabyte GA-H77-D3H? Is there a big difference between the two boards?
Not a big difference and performance will be the same here is though comparison of the chipsets which reveals more features on the H77 http://en.wikipedia.org/wiki/LGA_1155