Are there differences?

[Joshua Fredricks]

Is there really a huge difference between an i5 2500k processor and a 2500?

 

[sammy sung]

One operates at a nominal frequency with turbo boost. The other does that but also has an unlocked multiplier for overclocking. The unlocked K model is preferable from a performance standpoint.

 

[ScrewySqrl]

the 2500K can be overclocked.

that's about it

either way its 5 year old chip nowadays

 

[LeviLAD]

Is there really a huge difference between an i5 2500k processor and a 2500?

http://cpuboss.com/cpus/Intel-Core-i5-2500K-vs-Intel-Core-i5-2500

Well the 2500 has a much lower power consumption but the 2500k beats it in everything.
It's entirely up to you if you want to spend that extra bit of money

 

[Joshua Fredricks]

Thank you to you all.