I have recently bought the i7 2.3Hz Quad-Core using the Intel HD 4000 (2012). I have not upgraded anything on it yet. But I do have the screen issues. After the screen blacks out and comes back, it will have a flicker to it and the image gets degraded. Outside of that, I have some questions. I know from using windows 7 that the Intel HD anything has been very bad both in 2D and 3D. I currently have 2 other computers that use the Intel HD product and I never thought the text and screen transitions where all that great. I know that the i7 2.3Hz is very fast computer with a very slow graphics processor. Which I do not really game but I like the screen that I am looking at to look good and easy to read. I noticed that the 2011 model has the Radeon HD 6630M with the i5 2.5Hz Sandy Bridge. I know this is a better gpu in both 2d and 3d. My question is how much slower in real world is the 2011 vs the 2012 either the base i5 or the i7? At Best Buy they had the base i5 2012 with the HD 4000 and it seemed rather fast. Which one would be better to get? Thanks.