Ok to start off the pc arrived 2 days before final arrival date (excellent!), the pc is awesome the only things that an serious gamer could want more is to upgrade the hard drive to solid slate drive and the graphics card to a ultimate card.
From my analysis I have tried about 6 games on it:
Civilization V: Perfect - never lagged AT ALL (fps60) in fullscreen or windowed mode (everythin on highest available option) in fact with this game you can run it while you are busy doing something else since the pc runs so smoothly with it.
Dark Souls: No Lag- it runs perfectly well is also the game itself that has no graphics option.
F1 (2012): Runs well- if you set the graphics to medium or change the stuff like decrease quality of the outside of the tracks, please note since this is a racing game I only play if it fps 60 non stop (since one moment of lag and you will crash).
Sins of a Solar Empire: Perfect - its a strategy game it can run extremely same as Civilization V
The Elder Scrolls V- Skyrim: Runs very well- you can leave it on high (NOTE: this is without mods you will HAVE to decrease if you install mods) push down to about medium and it will run fps60.
The Witcher 2 (Enhanced Edition): Runs ok- Had to decrease setting to in-between low-medium specifications as in set to low then add like better textures and good to go (NOTE: this is the Enhanced edition so on the normal game should, haven't tried, run medium-high)
The motherboard is:GIGABYTE GA-78LMT-USB3 Motherboard Phenom II AMD Athlon II Socket AM3 AMD 760G Micro ATX RAID Gigabit Ethernet (rev. 4.1)
I bought this pc along with:TP-Link TL-WN951N 300Mbps Wireless N PCI Adapter
and with this item there still space to replace the graphics card for one that takes 2 slots (spaces)