Compare: Peerless Assassin 140 vs Mugen 6

Design and Aesthetics:

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.

Mugen 6

This cooler features a sleek, monolithic design with an exposed metal heatsink and a polished top that conceals the heat-pipe ends, giving it a clean, refined appearance. It comes with a single 120mm black fan, with the option to add a second for enhanced cooling performance. While other design variations exist, this model emphasizes simplicity and modern aesthetics.

Install Notes:

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.

Mugen 6

The Scythe Mugen 6 features a standard installation process, where brackets are first attached to the motherboard, followed by the cooler. It includes a single fan, with the option to install a second for enhanced cooling performance. Its design ensures compatibility with most motherboards, without interfering with RAM placement.

Cooling Performance:

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.

Mugen 6

This cooler delivers above-average performance and its performance is in line given its size and single fan configuration. With the option to add a second fan, it allows for improved cooling and a better noise-to-performance ratio at minimal cost, offering upgrade flexibility. However, in its default configuration, it may not be sufficient for high-end CPUs that generate significant heat.

Noise Performance:

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.

Mugen 6

This cooler boasts an excellent noise profile, thanks to its single 120mm fan. While adding a second fan can enhance overall cooling and improve the sound-to-performance ratio, it may also lead to increased noise levels at higher speeds. Overall, the cooler maintains a good balance between noise and performance, especially considering its size and fan configuration.

Summary:

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.

Mugen 6

The Scythe Mugen 6 features a straightforward installation process, with brackets attached to the motherboard before securing the cooler. Its monolithic design includes an exposed metal heatsink and polished top, hiding the heat-pipe ends for a clean, modern look. It comes with a single 120mm black fan, with the option to add a second for enhanced cooling performance. The cooler is compatible with most motherboards, avoiding interference with RAM placement. Offering above-average performance, the option for a second fan allows for improved cooling and a better noise-to-performance ratio, though overall noise levels may increase at higher speeds. In its default configuration, the cooler performs well but may not be sufficient for high-end CPUs that produce significant heat. Overall, it strikes an impressive balance between noise and performance.