Keep in mind this is on an Intel Platform with TIM under the IHS, how much you want to bet that with a CPU that has a soldered IHS the cooler performs far better?
Notice on a 5960x which of course soldered IHS it does just fine. All depends on the CPU and the situation. Same with an FX8350
http://www.technologyx.com/featured/noctua-nh-l9x65-cpu-cooler-review-compact-and-quiet/4/
http://funkykit.com/91-reviews/cooling/1729-noctua-nh-l9x65-cpu-cooler-review?showall=&start=5
As for
@MAXLD
from the conclusions
The Noctua NH-L9x65 is a very quiet CPU cooler, which is not surprising considering it is a Noctua cooler after all. What is surprising is the
perfect clearance on Intel systems, not only for memory but around the socket and the expansion slots. The cooler's tiny 92 mm x 92 mm x 65 mm size makes it possible. As always with Noctua products, the build quality is exceptional, while the SecuFirm 2 mounting system makes it easy to install. It is also well packaged, which is nice to see. Overall, the NH-L9x65 is
a promising option for low-power HTPC and small form-factor systems as it should fit right in.
Sadly, I ran into a few issues on this particular model. First, at $52.90 MSRP, it is expensive for what little performance it offers. Next, performance is lacking. While fine at stock, it still gets extremely hot. With just a mild overclock, the CPU thermal throttled.
It is not a good cooler for overclocked systems or higher TDP CPUs under heavy load. "Niche" is the perfect word to describe this cooler because it is perfect for specific situations—my test system isn't one of those. Finally, the color theme won't be to everyone's liking, but come on, you knew that already, it's NOCTUA!
Overall, the Noctua NH-L9x65 is not as bad a cooler as the review score may indicate. Its usability is limited to the point where Noctua provides a TDP guide for it and the CPUs and situations it will best perform with. If you plan to run overclocked high TDP processors, this is not the cooler for you. However, if your CPU falls into the proper category or you plan to run a stock system, the NH-L9x65 may be what you are looking for.
I didn't miss the point it is what it is. Its an expensive Niche cooler. Most cases will fit larger options that are cheaper and perform better however the Noctua cooler when used with the proper CPU is an awesome low noise option. However for the great deal of people using a 4670k or 4770k 4790k etc this cooler isn't the best fit. The review reflects that. Pair this with an i3 or FX series or AMD APU in a SFF system however and the Noctua cooler will find itself right at home. The problem is I am not using a server with tray setup. I do not use a HTPC for testing. I do not use an SFF system for testing. I do take that into account but the NH-L9x65 is a cooler that while promising does not deliver on my test bench. Which I addressed. Again not a bad cooler it just has limited appeal. Also keep in mind few will heed the Noctua warning about TDP because that warning isn't visible when purchasing the cooler at say Newegg or Amazon.
http://www.amazon.com/dp/B00VB3Y89E/?tag=tec06d-20 Thus the performance is lacking aspect to give users a heads up on what they are actually buying.