I5 3570K vs I5 2500K

Hello

i need some help becaus i cant deside on if i should get the I5 3570K or I5 2500K.

the 2500k is a little bit cheaper were i live (Denmark) but have head good things about the 3570k.

and i will be overcloking.

i´m new but my knows hot overclock.

any help will be aceptet.

Why.(sorry for bad english)

I loved my 2500k! Had it at 4.9ghz and it did just about everything I needed it to, until I started using multiple gpu's.

I love me 3570K. Running at 4.4ghz atm, earlier it was at 4.6...

But i gues it dosent matter wich one u pick :S