Very good. Set your fan PWM curve correctly and it keeps the Ryzen 7000 cool and silent under normal loads. I have the motherboard set to ramp up quickly as the CPU temperature goes up, so I hear it when the CPU is under load. But within maybe 5-10 seconds after the load ends the fans have dropped back down almost all the way to normal.

Heavy. I guess the motherboards are made to handle the load, but it still seems heavy to me. For modern CPUs, water cooler may be better if you have spikes in loads. With an air cooler, the cooler itself cannot absorb (and hold) much heat, so when you start a high load, the fans immediately have to increase in speed. With water cooling, I assume the water could absorb some heat without needing to immediately increase the fans. I may need to go with water the next time.

Typical excellent quality from Noctua

Keeping my i7-1300K under 85 degrees in prime 95 all processor at 100%

Contact area is not completely smooth, kinda resembles a fresnel lens

Would recommend for low maintenance build if you like air cooling.

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VERY loud for a "silent" fan. Expensive.

I've purchased Noctua case fans before and been happy with them, so I thought I'd buy one of these for my new CPU (Ryzen 5800X). It's only "silent" when it's not spinning, and when it is running, it's very noticeable (even as low as 250rpm). At full speed it's about as loud as a microwave oven. Worse is that no matter how I set the fan curve, it spins up and down all the time, which is very annoying.

Keeps my hot 10850k under 60 degree all time, heavy gaming or not, works better than my triple fan aio which died after 3 months. Comparing the risks and hassle to installing the big aio, this was way better any many ways

Need enough room, huge cooler

Great stuff

Very quiet at idle (do not hear the fans) - Very low maintenance compared to an AIO cooler - Excellent cooling ability for 3950x build, cpu at idle 30 degrees. When gaming, the cpu temp is in the low 50's. When compiling the chromium web browser the 3950x at 100% load (16 cores/32 threads - all core/thread boost 4.15Ghz) and hits a max temperature of 66 degrees, and the fans will occasionally spin up three or four times to max rpm for about 10 seconds, then quiets down. This process takes approximately one hour and a half.

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Best air cooler.

- Very quiet (it's a low hum on idle, little more under load) - Great cooling performance (about 35 on idle, 55 under load) - Dead simple installation (Even easier than other installs) - A premium style unboxing experience (it's weird given it's just a simple computer component) - Is even more quiet if you outfit the case with more Noctua fans. More silent than my previous PC build

- Memory ram clearances (check your memory if it's compatible on the Noctua website) - Big, bulky (might not fight in some cases. Get a mid-tower as a minimum) - Color (although you could probably make an ugly brown build)

Have had this for a year now and it sufficiently cools my Ryzen 2700x no problems while being whisper quiet. What's neat about it is that I can have my PC on top of my table and doesn't sound any louder than a typical low humming sound. Also put it nearby my mic and fans are quiet enough that it doesn't get picked up. Great performance (if you can find it right now) and don't pay more than MSRP. Since these fans are so good, I'm planning on upgrading the 120mm fans to Noctua's new NF-A12x25's for better performance (these fans can output similarly to a 140mm, but at a smaller size)

Quality components and construction. It comes with everything you will need to fit the cooler on most AMD (except TR4) and Intel platforms. If you haven't purchased or used a noctua cooler (or even just a fan), buy one and you will be pleasantly surprised at the quality and attention to detail that this company places on their products. Six years warranty. Very few coolers and fans come close to that. If you are able to get one on sale, this is absolutely the best air cooler that you can get. Most may not like the beige-brown color, but for me, this is actually what gives the product it's character. As seen from even from 10 feet away, there is no mistaking that this is a noctua.

May have some clearance issues with Tall RAM modules in most ATX and MATX builds (up to 32mm). You can increase this slightly by moving the front most fan a bit higher (but this will also require a bigger case clearance. However, since I used a min-itx motherboard, I only have two RAM slots and the notch on the noctua cooler will actually allow up to 65+ mm of RAM height. If you have RGB memory modules, this cooler will effectively block most of that fancy RAM lighting. My build is actually deplete of RGB so it works perfect for me.

My most recent build used an R9-3950X inside a mini-ITX case (13.4Li). It fits with mm to spare. This case (raijintek metis classic) is so small that it is literally starved for airflow and AMD recommends an AIO (240-280mm) for optimum cooling. Well this noctua with 2 fans set to silent in the bios, keeps the processor in the low 40 ~ 43° C range during everyday operation.

Ease of install Cools the Core™ i9-9900K High quality

Size might affect some

I have no complaints. I use it on my i9-9900k. Low mid 50’s @ 4.8GHz with prolonged gaming.

Really lowers temperatures

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I originally was using a Arctic Cooling Freezer 33 TR with my 1800x. With it, temperatures using handbrake were 75 °C After changing to this D15, my temperatures are 55 °C. The 1800x idles at the same temperature with both, but rises a lot more with the Freezer 33 TR when stressed.

1) It beats most entry level AIO coolers easily and trades blows with the rest as far as cooling performance. 2) Its quiet, way way more quiet than most air coolers or AIO. 3) Its an air cooler so only the fans can really fail versus water cooling where the Pump, fans, and tubes can fail. So it will last way longer. 4) The only other cooler I've seen will similar price to performance was the Noctua D14, they pretty much own the price to performance cooler market at the past $60 range.

1) Its big, but its not a problem as long as you don't drop your computer. No more dangerous than a AIO but not any less dangerous; if you drop it. 2) Its big, make sure your case is big enough for it, seriously. 3) Its big, Some ram may require you to move the first fan up slightly, most of the time its not an issue. My friend has one put together with the corsair vengeance LED ram. The ram managed to fit under it, so you can use that as an an estimate size that should work

I'm looking for the AM4 specific one after already buying a 1800x from them. They have excellent in-store service so I decided to review it here anyways, they will price match in-store as long as you have a plan going in. No pressure selling there either like at other shops. You can buy the AM4 adapter for around $8.00 CND, or if your willing to wait a bit Noctua will ship one to you for free if you prove you have the CPU cooler and a AM4 Motherboard.