http://www.tomshardware.co.uk/answers/id-1661333/i vy-bridge-cpu-suffix-differentation.html
pise nejaky ze
plati len pre ivy bridge (mas ivy bridge)"K" models are the only CPUs that have unlocked multipliers which allows you to overclock your CPu.
"S" models are a little more power efficient than normal models; 65w vs 77w.
"T" models are even more power efficient than "S" models; 45w vs 65w. They basically consume as much as a power hungry laptop mobile CPU.
"P" models do not have the Intel HD 4000 graphics core.