u are welcome, basically i wanted to guide u so that u may not waste your resources unnecessarily.
a jump from i5 2500K to I5 2700K is not advisable
the way i see is that u have some money in spear which u want to invest to get more performance in ur PC but by this u won't get it.
let me also tell u one more important thing, the thing is that their is no consumer GPU alive in this world which would get bottle necked with an i5 2500, this means both i5 2500K and i7 2700K will be the same for gaming performance.
only GPU upgrade is gonna take you to new performance levels not a processor at this stage so don't waste your money on it,
which GPU do u have?