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ARCTIC MX-7 vs Thermal Grizzly Kryonaut

Updated August 2026The ARCTIC MX-7 excels in long-term stability and ease of application, while the Thermal Grizzly Kryonaut offers superior thermal conductivity. Choose based on your specific cooling needs.

The ARCTIC MX-7 excels in long-term stability and ease of application, while the Thermal Grizzly Kryonaut offers superior thermal conductivity. Choose based on your specific cooling needs.

Why ARCTIC MX-7 is better

stability

Long-term stability prevents issues like pump-out and dry-out.

application

Designed for natural spreading under cooler pressure.

accessory

Includes MX Cleaner for optimal surface preparation.

Why Thermal Grizzly Kryonaut is better

thermal performance

Higher thermal conductivity rating of 12.5 W/mK.

application tool

Comes with a spatula for easy manual application.

versatility

Suitable for a wide range of applications.

Overall score

ARCTIC MX-7
85
Thermal Grizzly Kryonaut
78

Specifications

SpecARCTIC MX-7Thermal Grizzly Kryonaut
BrandARCTICThermal Grizzly
Price£7.29£6.95
Thermal ConductivityN/A12.5 W/mK
Non-ConductiveYesYes
Application MethodNatural SpreadManual Spread
Included AccessoriesMX CleanerSpatula

Dimension comparison

ARCTIC MX-7Thermal Grizzly Kryonaut

Overview of Thermal Pastes

When it comes to thermal pastes, both the ARCTIC MX-7 and Thermal Grizzly Kryonaut are notable contenders in the market. Priced at £7.29, the ARCTIC MX-7 offers impressive thermal performance and long-term stability, while the Thermal Grizzly Kryonaut is available for a slightly lower price of £6.95 and boasts extreme thermal conductivity. Understanding their differences can help you choose the best option for your cooling needs.

Thermal Performance

The ARCTIC MX-7 prides itself on a performance-optimised, dense consistency which ensures exceptional heat transfer. While it does not specify a thermal conductivity rating, its high filler content is designed to enhance thermal performance significantly. On the other hand, the Thermal Grizzly Kryonaut features a remarkable thermal conductivity of 12.5 W/mK, making it ideal for demanding configurations and industrial applications. If thermal performance is your priority, the Kryonaut’s explicit rating sets it apart.

Application Ease

For ease of application, the ARCTIC MX-7 is designed to spread naturally under cooler pressure, which means it cannot be spread manually, resulting in a thin bond line without air bubbles. This unique feature can be beneficial for users who may struggle with manual application. Conversely, the Thermal Grizzly Kryonaut comes with a specially designed spatula that facilitates an even spread of the thermal compound, ensuring optimal coverage. If you prefer a product that allows for manual application, the Kryonaut may be more suitable.

Long-Term Stability

ARCTIC MX-7 offers long-term stability, preventing issues such as pump-out, dry-out, or bleeding even after repeated thermal cycles. This characteristic ensures that users do not need to worry about frequent reapplication, making it a reliable choice for long-term use. In contrast, while the Thermal Grizzly Kryonaut does not explicitly mention longevity, its optimal viscosity ensures that it fills microscopic gaps effectively, which may contribute to decent long-term performance. However, the MX-7's emphasis on stability makes it a more compelling choice for long-term use.

Compatibility

In terms of compatibility, both thermal pastes are safe for a variety of devices. The ARCTIC MX-7 is electrically non-conductive and non-capacitive, making it safe for CPUs, GPUs, laptops, and consoles without the risk of short circuits. Similarly, the Thermal Grizzly Kryonaut also highlights its risk-free application due to its non-conductive properties. Both products are versatile, but the MX-7’s explicit mention of various devices might appeal more to users with multiple hardware components to cool.

Packaging and Accessories

The ARCTIC MX-7 includes MX Cleaner, which is specifically designed to remove old thermal paste and prepare surfaces for optimal performance. This added accessory can enhance the overall user experience by ensuring a clean application process. In contrast, the Thermal Grizzly Kryonaut does not mention any additional cleaning accessories, focusing instead on the included spatula for easy application. If you value a cleaner for optimal preparation, the ARCTIC MX-7 has the edge.

Price Comparison

The pricing of both thermal pastes is competitive, with the ARCTIC MX-7 priced at £7.29 and the Thermal Grizzly Kryonaut slightly cheaper at £6.95. While the difference of £0.34 may seem minimal, it could influence buyers looking for budget-friendly options. However, the choice between these two pastes should not solely rely on price; rather, consider the performance and features that each product offers to determine value for money.

User Experience and Reputation

Both ARCTIC and Thermal Grizzly have established reputations in the cooling industry. The ARCTIC MX-7 is recognised for its reliability and stability, making it a popular choice among users who prefer hassle-free, long-term solutions. On the other hand, Thermal Grizzly Kryonaut has garnered a strong following, particularly among enthusiasts and professionals who seek maximum thermal performance in demanding setups. These brand reputations can significantly influence user experience and satisfaction, making them important factors in your choice.

Which should you buy?

In conclusion, the decision between the ARCTIC MX-7 and Thermal Grizzly Kryonaut ultimately depends on your specific needs. If you prioritise long-term stability, ease of application without manual spreading, and the inclusion of a cleaning accessory, the ARCTIC MX-7 is an excellent choice. However, if your focus is on extreme thermal conductivity and the ability to manually apply for optimal coverage, the Thermal Grizzly Kryonaut is likely the better option. Evaluate your cooling requirements and preferences carefully to make the best choice for your setup.

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ARCTIC MX-7 vs Thermal Grizzly Kryonaut | versusfinder