Need an advice

animal

Distinguished
here is a side-by-side comparison of the two boards:

http://arabic.english.gigabyte.com/products/comparison/list.aspx?ck=2&pids=4516,4802

Since you have a non-overclocking CPU, you would only need the Z87 mobo if you are planning to SLI or do normal Crossfire in the future. The H87 is semi-capable of Crossfire operation, but with a restriction (see the side-by-side comparison listing I provided).

Other than that, look to see which motherboard has the features that you believe you would need/want. (number and types of expansion slots, USB ports, etc.)