Arctic MX-4 vs MX-6 vs MX-7 Thermal Paste Review

Layout, design and features …

The Arctic MX-7 has been given a comprehensively revised spray design and a completely new formula. According to Arctic, it was developed under the motto “Reengineered. Redesigned. Ready to Perform.”

The most important innovation is, of course, the improved cooling performance. Arctic states that the MX-7 (68.0 °C) achieves a temperature that is 2.3 Kelvin better (70.3 °C) than the MX-6 and even 4.1 Kelvin better than the MX-4 (72.1 °C). Review of the dies with an Intel Core Ultra 9-285K at around 284 watts power consumption. More detailed information on the measurement methods can be found on the Arctic MX-7 product page (image source: Arctic.de).

Other innovations include a new spray design, which makes dosing easier and at the same time improves the shelf life of the paste.

Furthermore, cohesiveness has also been improved. This is intended to prevent or at least minimize the pump-out effect that can occur after many heat cycles. As a result, the paste should remain effective over longer periods of time.

According to Arctic, the relatively viscous consistency (35,000-38,000 poise) eliminates the need for manual spreading with the MX-7. Nevertheless, the manufacturer guarantees optimal layer formation due to the contact pressure of the cooler. Compared to its predecessors, the paste ranks in the middle in terms of viscosity (MX-4: 31,600 poise – medium to thick consistency, MX-6: 45,000 poise – very thick consistency).

Arctic MX-7 Practical testing …