The Intel® Core™ i5-2500K and its Intel HD 3000 Graphics are not bad but they arent the graphics that you want to be counting on for gaming. They will work fine for watching a movie, doing most of the work that you would do on your computer except for gaming and heavy multi-media editing/creation work. On a game that has been optimized for them like Starcraft 2 you might get low 30 FPS performance out of the IGP (Integraded Graphics on processor) but to compare that to a solid video card like the nVidia GTX 560TI isn't even close.
Christian Wood
Intel Enthusiast Team