NoMercyBeAst :
Wht abt i7 7700k am getting it with liquid cooler at 340 usd
What liquid cooler comes with it? It is not a bad price if you can get a 240mm or higher liquid cooler. 120/140mm liquid coolers are not very good.
7700k's are great CPUs, but I would only buy one right now for a good price. I would not pay over $300 for a 7700k. So if it comes with a good cooler, $340 is not bad.
I don't know if you budget includes motherboard or not. You will definitely need a Z270 board. Do not get a H board as it wont overclock. Z boards are more expensive and the very cheap ones do not overclock well. I would look for a midrange motherboard such as a Gigabyte Game 5 or MSI Tomahawk.
I have a Gigabyte gaming 7 and I have not problems getting my 7700k to OC. I run a Corsair H115i cooler and hit 5ghz at 1.34 volts and keep my temps below 80C for the most part.