If you're looking to build a new PC and plan on doing some serious overclocking, or and you want that computer to be as quiet as possible, then your best choice is a aftermarket coolers for your processor. They come at a dime of dozen these days, the choices are readily available at your disposal, which cooler you should purchase can be a toughest decision you'll make when shopping for hardware.
Don't worry, I've come up with a buyers guide of at least 3 CPU air coolers you should include in your next computer build.
Calling this cooler a beast is a understatement, it packs six aluminum heatpipes that leads right up to its twin radiator. It sports a pair of behemoth size 140mm fans keeping airflow directly on the radiator at a constant. Noctua have a great reputation of constructing coolers that run very quiet and emit very little heat, this what you'll get with the NH-15. You manually can control the fans with its PWM support.
At 6.34 x 5.91, the Noctua NH-15 will take up a lot of space within your PC case, my suggestion is to purchase a chassis that has room inside.
Retail Price: $88.43 Where to get it: Amazon
Cooler Master Hyper 212 EVO
If you're building a budget PC because you're on a serious budget, then the Cooler Master Hyper 212 EVO maybe what you're looking for. Cheap in price yes, but there is no short in performance as it will keep some the most power hungry chips on the market nice and cool.
Its packing four copper pipes with a nice size aluminum fins that dissipates heat with ease. It has a very large 120mm PWM fan which like the Noctua NH-15, airflow is at a constant and can be manually controlled. Great thing about this air cooler is its nice and compact leaving plenty of space inside your case. If you're not sure about this particular cooler, let me ease your mind by saying I have this same exact cooler installed in one of my PC builds.
Retail Price: $27.99 Where to get it: Amazon
Noctua Dual Tower CPU Cooler
Finally we have another recommended CPU cooler made by Noctua, the Dual Tower cooler have the distinction of blowing air parallel to the motherboard, while most low profile coolers blow air towards the motherboard. At just 3.74 x 4.33 inches, this cooler is perfect for the Fractal PC case ITX computer build.
Retail Price: $54.95 Where to get it: Amazon