Victor0317 :
i'll get a new FX 8350 with a new cooler around december to february. but i wonder between hyper 212 evo and corsair h55 or h75. some topic said they recommend hyper 212 evo but some said they recommend liquid cooling. i cannot decide. also, when i get an FX 8350, i may need to overclock it so which one should i get?
If you plan to overclock you may need to use water cooling. Although mentioning this some people still use air cooling with air cooling (Good air heatsinks), If you are not going to max out your cpu the maximum overclock I recommend just get a good air heatsink, if so get water cooling. Water cooling though is a bit of a task, it looks nice, offers good cooling but can be tricky and one slip up when installing can cause your pc to malfunction (seal may not be on correctly and cause leaks).
My friend has the EVO 212 and it is good enough, it helps decrease temps. I think you should evaluate the pro's and con's of water-cooling and if you choose water cooling I recommend looking up tutorials and test on an old system (if possible) to make sure you know what you are doing which will help your confidence. You will also need to maintain it by replacing the water from 3 - 6 months especially if you use dyes in it as it can clump up over time in the tubes (red dye is the most common to do this).
Personally water cooling may be a bit too much, you will just need sufficient cooling in your fan (good intake and exhausts fans and enough of them) and a good CPU heatsink. Incase if you don't want to fully customise your system for water-cooling you can get a prebuilt liquid heatsink for the CPU. Corsair is a good one, they have the Hydro series like the H80i just make sure you would find one compatible with the AMD 8350 socket (AM3+).
Overall water cooling can be better than air cooling but comes with some risks and take more maintenance, depending on how you want to overclock, money, how bothered you are to clean out and maintain your pc regularly. All these things should determine what you would want, I would only recommend water-cooling if you are serious about overclocking and will make sure you assemble everything correctly and clean it out.
Also this is a website that shows your heatsink, as you can see you are getting lower than these temperatures. = https://www.techpowerup.com/reviews/NZXT/Respire_T40/6.html