The main difference is the newer intel chips like the i5 2400 have the integrated graphics built into the CPU itself, the AMD processors still have the integrated graphics on the motherboard. The i5 2400 uses intel's HD 2000 graphics which are slightly slower than the Radeon HD 4250 integrated graphics. Either one can handle HD video fine and video editing fine. The i5 2400 is the faster CPU though, so if you aren't gaming you probably will get better overall performance with the intel setup. If you do want to use intel's integrated graphics, make sure you get an h61, h67 or z68 board, the p67 boards do not support the use of integrated graphics.