The Optiflex 790 is what I recieved with the same specs as the 990 due to being refurbished the cases may have been switcheds, not sure. I looked into gaming with hte computer and found it requires a graphics card update (the refurbished computers donot include a graphics card). The gards for gaming to get you started cost about $150 and up depending on your funds. I bought a card for designing (Quatro card) and I can game at fairly decent FPS.Overall hte computer is a sutible computer, and yes if your wondering you can game very well depending on your graphics card choice.  Have a great day and happy gaming or developing.