Compare: NH-L9x65 vs Peerless Assassin 140

Thermalright Peerless Assassin 140  Manufacture's image.

Thermalright Peerless Assassin 140

Compare To Another Cooler
Displayed below are comprehensive data and graphs that compare the Noctua NH-L9x65 to the Thermalright Peerless Assassin 140, showcasing critical qualitative and performance metrics. Performance metrics are further segmented into distinct graphs while leveraging the AMD Ryzen 7 5700X, illustrating how each cooler performs under various varying CPU power levels. This allows for a clear comparison of their relative performance and sound output when under different heat loads. The comparison is conducted under the following conditions:
  • Case: Praxis Wetbench
  • Ambient Temperatures: 23°C
  • CPU: AMD Ryzen 7 5700X (Pick Another CPU)

CPU Cooler Details

Metric Cooler 1: NH-L9x65 Cooler 2: Peerless Assassin 140
Cooler Name NH-L9x65 Peerless Assassin 140
Fan 1 Name NF-A9x14 PWM TL-C12B V2 PWM
Fan 2 Name TL-D14CB
Manufacture Rated dBa 23.6 25.6
Number of Heat Pipes 4 6
Full Size (WxHxD): 95x51x95 mm 140x158x157 mm
Heatsink 1 (WxHxD) 95x35x81 mm 140x117x55 mm
Heatsink 2 (WxHxD) 140x117x55 mm
Air Cooler Rating: Install 8 (Easy)
AIO Cooler Rating: Install 7 (Easy)
Manufacture's Link NH-L9x65 Manufacture's Link Peerless Assassin 140 Manufacture's Link

Product Links

Link Type Cooler 1: NH-L9x65 Cooler 2: Peerless Assassin 140
Amazon.com

Fan Details for CPU Cooler:


Fan 1

Metric Cooler 1 Cooler 2
Fan Name NF-A9x14 PWM TL-C12B V2 PWM
Fan Location Top Front
Fan Flow Type Push Push
CPU Only Fan No No
Max RPM 2500 1500
Fan Size (mm) 92 120
Fan Width (mm) 25 25
Manufacture Rated dBa 19.9 25.6
Manufactured Rated Airflow (cmf) 29.7 66.2
Manufactured Rated Air Pressure (h2o) 1.6 1.5
Number Of Pins 4 4
PWM Fan Yes Yes
Bearing Type SSO2 Fluid Dynamic
Watts (W) 1.32 2.40
Current (A) 0.11 0.20
Max Volts 12.00 12.00

Fan 2

Metric Cooler 1 Cooler 2
Fan Name TL-D14CB
Fan Location Mid
Fan Flow Type Mid
CPU Only Fan No
Max RPM 1500
Fan Size (mm) 140
Fan Width (mm) 27
Manufacture Rated dBa 25.6
Manufactured Rated Airflow (cmf) 77.8
Manufactured Rated Air Pressure (h2o) 2.1
Number Of Pins 4
PWM Fan Yes
Bearing Type Fluid Dynamic
Watts (W)
Current (A)
Max Volts


Design and Aesthetics:


NH-L9x65

The NH-L9x65 features a low-profile design with a slim aluminum heatsink and a 92mm NF-A9x14 PWM fan. With a height of only 65mm, the cooler is compatible with a wide range of PC cases, including mini-ITX and HTPC builds. Aesthetically, the NH-L9x65 maintains Noctua's signature beige and brown color scheme, reflecting the brand's reputation for quality and performance.

Peerless Assassin 140

The Peerless Assassin 140 shares a similar design with other 140mm coolers from Thermalright, featuring two 140mm heatsinks paired with a 120mm fan at the front and a 140mm fan in the middle. The difference in fan sizes helps reduce RAM clearance issues, which are common with most 140mm air coolers. This model has a polished top and comes in an all-black design, though other color options may be available.


Install Notes:


NH-L9x65

This cooler is designed to be a typical Noctua cooler installation, which is easy to do and rather straightforward. This means that if you're new to installing a CPU cooler, there is little room to make a mistake. For AMD is uses the original AMD backplate. Only downside to the Noctua installation is that the cooler may stick to your CPU and given how the screws are setup, you can't slide the cooler off the CPU like other brands.

Peerless Assassin 140

The Peerless Assassin 140 CPU cooler features installation components similar to many mainstream Thermalright designs, making it relatively easy to install. However, it encounters a challenge when uninstalling, as it doesn't allow for sliding or twisting to break the thermal paste seal. This can be problematic if the thermal paste creates a strong bond between the cooler and the CPU.




Cooling Performance:


NH-L9x65

The performance of the NH-L9x65 is suitable for most mainstream CPUs and everyday tasks. It has four heat pipes that efficiently transfer heat away from the CPU to the heatsink. While the cooler may not be the best choice for high-end CPUs with high TDPs or extreme overclocking scenarios, it provides adequate cooling for lower TDP CPUs, especially in small form factor builds with limited space.

Peerless Assassin 140

While the cooler offers similar peak performance to its competitors, its main advantage lies in its efficiency at lower RPMs, where it provides slightly better cooling. This translates to a noticeable edge in noise-to-performance ratio compared to smaller coolers, making it quieter under lower loads while still maintaining strong cooling capabilities.


Noise Performance:


NH-L9x65

The 92mm NF-A9x14 PWM fan included with the NH-L9x65 is designed for quiet operation while maintaining good airflow for its size. Noctua fans are well-known for their excellent acoustic performance, and the NH-L9x65 is no exception. Users can expect quiet cooling even during low workloads, however due to it's limited cooling abilities, it may have to run louder moderate workloads or gaming sessions.

Peerless Assassin 140

Due to its larger fans, this cooler becomes more audible at higher RPMs. However, because the fans move more air, lower RPMs are generally sufficient for cooling under most moderate CPU loads, allowing for quieter operation without sacrificing performance.


Summary:


NH-L9x65

The Noctua NH-L9x65 is a compact and efficient air cooler that's well-suited for small form factor builds and systems with limited space. Its low-profile design, adequate cooling performance, and quiet operation make it an attractive option for those looking for a space-saving and reliable cooling solution.

Peerless Assassin 140

The Peerless Assassin 140 CPU cooler is easy to install, thanks to its design resembling other mainstream Thermalright models, but it presents a challenge during uninstallation as it doesn’t allow for sliding or twisting to break the thermal paste seal. It features two 140mm heatsinks, a 120mm fan at the front, and a 140mm fan in the middle, which helps reduce RAM clearance issues common with larger coolers. While its peak performance is on par with competitors, it excels at lower RPMs, offering better cooling and a superior noise-to-performance ratio compared to smaller coolers. Although more audible at higher RPMs due to its larger fans, the slower speeds still provide sufficient cooling for most moderate CPU loads, ensuring quieter operation without compromising performance.


AMD 5700X CPU Box Image

AMD Ryzen 7 5700X

Pick Another CPU

CPU Details:

Metric Value
Brand AMD
Cooler Name Ryzen 7 5700X
CPU Socket AM4
Cores 8
Thread Count 16
Max Temperature 90°C
Base Clock 3.4GHz
Max Boost Clock 4.6GHz
Cache L1 512KB
Cache L2 4MB
Cache L3 32MB
Processor Power Base 65W
Manufacture's Link Ryzen 7 5700X Manufacture's Link

Product Links

Link Type Value
Amazon.com

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