looking for a mid range or low budget

[shahryara9069]

I want to buy 3rd or 2nd gen i5 but which cpu is best for gaming which cpu should I buy?

 

[n0ns3ns3]

3rd gen is significantly better.
the fastest clocked i5 of gen 3 or 4 are decent for gaming and can be found under 100$

 

[Hellfire13]

MERGED QUESTION
Question from shahryara9069 : "looking for mid-range CPU"

I want to buy core i5 but I m confused which processors I choose so help me in deciding which I buy and no heat issues because my city temperature is 50 C in summer

You should always go for latest gen., and this gen. is one of the best in years... http://www.pcgamer.com/intel-i5-8400-review-the-best-new-gaming-cpu-in-years/