Product Comparison: Corsair H115i vs Noctua NH-D15

General Specifications
About the Product
The Hydro Series H115i is an extreme performance, factory sealed, all-in-one liquid CPU cooler for cases with 280mm radiator mounts. The 280mm radiator and dual SP140L PWM fans provide the excellent cooling you need for highly overclocked CPUs. Corsair Link software control is built in, so you can monitor temperatures, adjust cooling performance and customize LED lighting directly from your desktop.
Built on the basis of the legendary NH-D14 and carrying on its quest for ultimate quiet cooling performance, Noctua’s flagship model NH-D15 is an elite-class dual tower cooler for the highest demands. Its expanded heatpipe layout and two premium grade NF-A15 140mm fans with PWM support for automatic speed control allow it to further improve the NH-D14’s award-winning efficiency. Topped off with the trusted, pro-grade SecuFirm2™ multi-socket mounting system and Noctua’s proven NT-H1 thermal compound, the NH-D15 forms a complete premium quality solution that represents a deluxe choice for overclockers and silent-enthusiasts alike.
Key Specs
Cooling Type
Water Cooling
Air Cooling
Max. Airflow
104.65 CFM
82.5 CFM
Number of Pipes
What customers say about "Key Specs"
Corsair H115i Hydro Series Extreme Performance Liquid CPU Cooler
  • Does a very good job at cooling down my i7 8700k. I am getting frame rate boosts because of the lower temperatures and boost clock.
  • Compared to an air cooled system you can expect to see a decent drop in temps anywhere from between 5-10C depending on the cooler you are using.
  • In summery this is an amazing cooler for those that are not ready for the DIY liquid cooling builds.
  • If you don't mind the software, this is a great cooler if you're intimidated by the concept of making your own cooling system like me; just hook it up and it performs very well.
  • Very poor quality, and I have had one of the two fans in each of my last two orders get louder and louder: a kind of rattling sound, like a bad bearing or bearing sleeve or something.
Noctua NH-D15 6-heatpipe CPU Fans
  • If you're not going with water cooling this is your best choice. This product beats out most of the entry level water cooling options and performs really close to the top end ones.
  • Keeps CPU extremely cool.
  • I'm actually a bit surprised but Noctua has convinced me. I don't often use Air coolers for builds anymore but if and when I need to I know that Noctua does make high performing products.
  • Best, most effective air-cooled heat sink I've ever owned. Don't even need the second fan that's included, I'm under 60 degrees C at full load at my max overclock.
  • With good airflow, this will allow you to overclock without worrying about cooling.
Size & Weight
5.5 in.
6.5 in.
12.3 in.
5.9 in.
1.02 in.
6.34 in.
4.41 lbs.
2.91 lbs.
What customers say about "Size & Weight"
Corsair H115i Hydro Series Extreme Performance Liquid CPU Cooler
  • Because of my case size and I’ve recently consolidated my storage I now have room for this and plan on repurposing the H80i v2 for an ITX build.
  • It took a full sized case, Corsair 780T, because the two products overlapped in a way that made installation of this liquid cooler impossible on a midtower case.
  • It will also give you an idea of the size of the radiator and if it will work with your computer's case. If you are a 'leave the case open' kind of gamer then just go ahead and buy it anyway.
  • The tubing is really thick and it was hard to permanently position; I had to affix it to the radiator so I could get the glass panel on.
  • Back to the H110i, it's great. The radiator is big--almost TOO big--and it keeps my Ryzen 7 1800X temperatures cool and stable.
Noctua NH-D15 6-heatpipe CPU Fans
  • Installation is easy considering the size.
  • It does a nice job of cooling but it's huge. It blocks access to the memory modules on my motherboard.
  • Be prepared for the size of it and make sure it will fit in your case.
  • Only major complain is the size it's huge and a pain to put on and still interferes with ram space.
  • Be careful with the size of this monster. It is HUGE. If you have a large computer case, this shouldn't be a problem at all. The size of the cooler helps with its performance.
  • The heatsink has some decent weight to it, and it is big. Putting it one was a bit tricky because of it's size.
Socket Compatibility
Intel:, 115x, 2011-3, 2066, AMD:, AM2, AM3, AM4
Intel:, 2011-3, 2011, 1156, 1155, 1151, 1150, AMD:, AM2, AM2 +, AM3, AM3 +, FM2, FM1, FM2+
2000 RPM
1500 RPM
Cooled CPU (Max. TDP)
250 W
220 W
Noise Level
40 dBA
24.6 dBA
Number of Coolers
Heat-Exchanger Material
Power Connector Type
4-pin (chiller), 3-pin (pump)
280mm dual-fan radiator, Improved coldplate and pump design, Dual SP140L pwm fans, Built-in corsair link for monitoring, customization and control, High-performance cpu cooling made simple
Dual NF-A15 140mm fans, SecuFirm2 mounting system
Bearing Type
Fluid Dynamic, SSO2
What customers say about "Features"
Corsair H115i Hydro Series Extreme Performance Liquid CPU Cooler
  • Once installed the cooler looks great, I love the LEDs and the clean look it gives the entire build in comparison to a huge radiator being mounted on my CPU.
  • Install was simple. The fans don't come pre-mounted, you have to attach them to the radiator yourself.
  • The thermal compound is pre-applied very nicely and evenly. It's very thin as well, which is what you want.
  • The noise issue with this product really shouldn't give you too much noise trouble provided you find replacement fans, have a soundproofing case, or simply don't mind the noise.
  • Corsair Link software interferes with OC'ing, and has conflicts with other software, causing system instability.
  • The controller program doesn't control very well. You have to dig to find where you can fine-tune the cooler settings. It does look nice though. It doesn't compare to NZXT's CAM program though. However NZXT's CAM program is known to conflict with certain games (StarCraft 2).
Noctua NH-D15 6-heatpipe CPU Fans
  • Even at 100% fan speed, they are not very loud.
  • Slightly puzzled by the inclusion of the speed reduction adapters, as even at full speed, these fans are completely silent.
  • This fan is quieter at full speed than my stock CPU cooler was at it's slowest.
  • It's about the same as the noise floor in a normal room.
  • A long way from the scary temperatures I was getting prior to the new cooler. I cant imagine this cooler getting hot ever!
  • I removed two stars because of sound; namely the very annoying high pitched whining sound that one of the fans made. I ended up replacing the one fan that came stock with this cooler simply because I couldn't stand the sound.
Warranty / Certifications
Manufacturer Warranty
5 year(s)
6 year(s)

Price History

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