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Thermal Grizzly Kryonaut vs Noctua NT-H1 3.5g

Updated August 2026The Thermal Grizzly Kryonaut offers superior thermal conductivity at a lower price, while the Noctua NT-H1 excels in ease of application and long-term stability.

The Thermal Grizzly Kryonaut offers superior thermal conductivity at a lower price, while the Noctua NT-H1 excels in ease of application and long-term stability.

Why Thermal Grizzly Kryonaut is better

thermal conductivity

Kryonaut has a conductivity of 12.5 W/mK

price

Kryonaut is £6.95 compared to £11.00 for NT-H1

performance

Kryonaut is designed for extreme performance applications

Why Noctua NT-H1 3.5g is better

ease of application

NT-H1 requires no spreading before installation

long-term stability

NT-H1 has a usage time of up to 5 years

cleaning

NT-H1 is easy to clean with just a dry towel

Overall score

Thermal Grizzly Kryonaut
85
Noctua NT-H1 3.5g
75

Specifications

SpecThermal Grizzly KryonautNoctua NT-H1 3.5g
BrandThermal GrizzlyNoctua
Price£6.95£11.00
Conductivity12.5 W/mKN/A
Pack Size1g3.5g
Storage TimeN/A3 years

Dimension comparison

Thermal Grizzly KryonautNoctua NT-H1 3.5g

Price Comparison

The Thermal Grizzly Kryonaut is priced at £6.95, while the Noctua NT-H1 3.5g is considerably more expensive at £11.00. This £4.05 difference may influence budget-conscious consumers who are looking for effective thermal solutions. Despite the higher cost, the Noctua paste is often perceived as a premium option, backed by over 150 awards and recommendations. This pricing structure indicates that while the Thermal Grizzly offers excellent value for money, the Noctua may appeal to those seeking a tried-and-tested product with a strong reputation for performance.

Performance Capabilities

When it comes to thermal conductivity, the Thermal Grizzly Kryonaut boasts an impressive rating of 12.5 W/mK. This figure signifies its potential for superior heat dissipation, making it particularly suitable for high-performance applications, including demanding CPU and GPU setups. Conversely, the Noctua NT-H1 is also designed for optimal heat transfer, although specific conductivity values are not disclosed. Both products are engineered to significantly lower temperatures compared to stock pastes, yet the Kryonaut’s higher thermal conductivity gives it an edge in extreme performance scenarios.

Application Process

The Thermal Grizzly Kryonaut features an optimal viscosity that facilitates easy application, ensuring an even spread that fills microscopic gaps. This design is complemented by a specially designed spatula included in the package, enhancing the user experience. In comparison, the Noctua NT-H1 simplifies the application process further by eliminating the need for spreading before heatsink installation. This ease of use can be a deciding factor for consumers who prefer a less hands-on approach. Both products are user-friendly, though the Noctua may attract those seeking convenience without sacrificing effectiveness.

Compatibility

Both the Thermal Grizzly Kryonaut and Noctua NT-H1 are versatile thermal compounds that can be used in various applications. The Kryonaut is compatible with CPUs, GPUs, and other components, making it an excellent choice for diverse cooling requirements. On the other hand, the Noctua NT-H1 is suitable for air and liquid coolers, including DIY and AiO systems. It is specifically noted for its effectiveness with AMD Ryzen and Intel Core CPUs, as well as GPUs from AMD and Nvidia. This broad compatibility ensures that both products can meet the needs of a wide range of users.

Longevity and Stability

Longevity is an important factor when choosing thermal paste. The Thermal Grizzly Kryonaut does not specify a recommended usage duration but is designed to offer maximum cooling performance over time. In contrast, the Noctua NT-H1 is noted for its excellent long-term stability, with a recommended storage time of up to three years and a usage time of up to five years on a CPU. This aspect may appeal to users looking for reliability and durability, especially in systems that are not regularly maintained.

Cleaning and Maintenance

The Thermal Grizzly Kryonaut does not provide specific details regarding clean-up procedures, which may require additional consideration for users who prioritise easy maintenance. Conversely, the Noctua NT-H1 is designed for easy cleaning, requiring only a dry paper towel or tissue without the need for cleaning alcohol. This convenience can be particularly beneficial for those who expect to replace thermal paste periodically, as the ease of removal can save time and effort during maintenance.

User Feedback and Reputation

The Thermal Grizzly Kryonaut is known for its extreme performance capabilities and has gained a following among enthusiasts and professionals alike. However, it may not have the same level of recognition as the Noctua NT-H1, which has received over 150 awards and recommendations, establishing it as a trusted choice in the thermal paste market. This reputation can influence purchasing decisions, as consumers often gravitate towards products that have been vetted by the community.

Which should you buy?

Ultimately, the choice between the Thermal Grizzly Kryonaut and the Noctua NT-H1 will depend on your specific needs and preferences. If you are looking for the highest thermal conductivity and are budget-conscious, the Thermal Grizzly Kryonaut at £6.95 offers exceptional performance at a lower price point. However, if you value ease of application, long-term stability, and a proven track record, the Noctua NT-H1 at £11.00 may be worth the investment. Both products excel in their own right, making them solid options for enhancing cooling efficiency in your system.

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Thermal Grizzly Kryonaut vs Noctua NT-H1 3.5g | versusfinder