This mini pc motherboard can install 4 types of processors:

1. CPU Intel Core i5 5257U 2 core 4 threads 3MB cache 2.7GHz Max 3.1GHz TDP 28W Graphics Iris 6100.
2. CPU Intel Core i5 5250U 2 core 4 threads 3MB cache 1.6GHz Max 2.7GHz TDP 15W Graphics HD 6000.
3. CPU Intel Core i5 5200U 2 core 4 threads 3MB cache 2.2GHz Max 2.7GHz TDP 15W Graphics HD 5500.
4. CPU Intel Core i5 4258U 2 core 4 threads 3MB cache 2.4GHz Max 2.9GHz TDP 28W Graphics Iris 5100.

What can this mini computer do?

Office work: Office, skype, yahoo, outlook and all other office requirement support and runs perfect;
Design work: Photoshop, CoreIDRAW, Dreamweaver, IIIustrator, Flash, Indesign and others
Game playing: support most online games and PC games, like Warcraft, Counter-Strike (CS), support 3D games but this is integrated graphic not independent cards, so don't play very high grade 3D games.
Entertainment: support blue ray 1080P video play, XBMC and others