i am feeling difficulty in choosing which processor should i buy . Earlier i had a processor Pentium(R) G630 of 32nm build .... I have recently found out that the socket is LGA 1155... Can a 22nm i5 processor fit it and run properly.
If you want to keep your current motherboard, look for Intel i5-3350P/i5 3470/etc., and get a dedicated videocard, like a R9 200 series or GTX 700/900 series.
What are you doing on your PC? gaming, editing , large software? or just browsing , and watching video?
Socket 1155 cannot seat current Haswell CPU's , you need a socket 1150.
If you want to keep your current motherboard, look for Intel i5-3350P/i5 3470/etc., and get a dedicated videocard, like a R9 200 series or GTX 700/900 series.