Noctua NT-H2 (Metal-Oxide Based/9.0 W/mK/Non-Conductive/5-Year Longevity/Includes Cleaning Wipes)
- Model:
- Noctua NT-H2
- Compound Type:
- Metal-Oxide (no metallic particles)
- Thermal Conductivity:
- ~9.0 W/mK
- Electrical Conductivity:
- Non-Conductive
- Package Size:
- 1.4g / 3.5g / 10g tubes (includes cleaning wipes)
- Recommended Use:
- Mainstream CPU/GPU
- Reapplication Interval:
- Long-term stable per Noctua testing (rated up to 5 years)
- Safety Notes:
- None
Consumercarts is reader-supported. Learn more
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Noctua Last updated: September 10, 2026
Description
The Noctua NT-H2 brings the company's decades of cooling engineering into a thermal paste built specifically around longevity and forgiving application rather than chasing the absolute highest conductivity number. It achieves genuinely strong thermal performance using metal-oxide micro-particles with zero metallic content, a formulation Noctua specifically engineered to remain fully non-conductive while still competing with premium silicone-based pastes on real-world results.
The Noctua NT-H2 brings the company's decades of cooling engineering into a thermal paste built specifically around longevity and forgiving application rather than chasing the absolute highest conductivity number. It achieves genuinely strong thermal performance using metal-oxide micro-particles with zero metallic content, a formulation Noctua specifically engineered to remain fully non-conductive while still competing with premium silicone-based pastes on real-world results.
Thermal Performance and Conductivity
Independent testing on a Ryzen 7 9800X3D measured this paste achieving a 35.5°C delta over ambient, a meaningful 2.5°C improvement over Arctic MX-6 in that specific test, though other independent three-way comparisons against MX-6 and Thermal Grizzly Kryonaut found all three landing within roughly 0.3-1.4°C of each other, close enough that reviewers characterize the practical difference as within normal measurement variance for most builds.
Compound Type and Composition
NT-H2's metal-oxide formulation with no metallic particles at all is specifically what Noctua highlights as a technical achievement: strong measured conductivity without the electrical conductivity risk that metallic compounds carry, while also avoiding the carbon-based approach Arctic uses for its MX line.
Application and Consistency
Independent reviewers specifically describe this paste's consistency as thicker than Arctic MX-6, closer to peanut butter than mayonnaise, meaning it sits where it's applied rather than spreading thin and migrating during handling or shipping. This makes it a genuinely forgiving paste for less experienced builders, and Noctua includes three cleaning wipes in the box specifically to support a clean re-application if needed.
Electrical Safety
Fully non-conductive despite its metal-oxide content, this paste carries no short-circuit risk even with an imperfect application, matching the safety profile of carbon-based compounds like Arctic's MX line while using an entirely different underlying chemistry to get there.
Longevity and Pump-Out Resistance
Noctua rates this paste for up to 5 years of service, and the company's own stability testing found zero measurable performance degradation after 18 months of continuous operation on an overclocked Intel Core i9-14900K, a genuinely demanding, sustained-heat test case. The 3.5g tube is sized to cover 4 to 5 CPU applications, making the per-application cost reasonable despite the premium unit price.
Comparison to Sibling Products
Against Arctic MX-6, covered elsewhere on this site, independent testing found results split depending on the specific test setup, with this Noctua paste measuring meaningfully better in one direct Ryzen 9800X3D comparison but landing within measurement error in a broader three-way test; both are genuinely strong, safe choices and the real-world difference for most builds is small. Against Noctua's own older NT-H1, still sold at a lower price, current guides note the performance gap between the two is below the noise floor of normal measurement, meaning NT-H1 remains excellent value for anyone who doesn't need the marginal NT-H2 upgrade.
Who This Paste Is Actually For
**Buyers who want a forgiving, thick-consistency paste that won't migrate during application.** This is a genuine practical advantage for less experienced builders. **Anyone who wants to avoid repasting for as long as possible.** Noctua's own extended stability testing backs a genuine 5-year longevity claim. **Builders already using Noctua coolers who want a matched-ecosystem product.** Many Noctua cooler bundles include NT-H2 pre-applied, and the included cleaning wipes support a clean re-application later. **Not for buyers on the tightest possible budget.** Arctic MX-4, covered elsewhere on this site, delivers strong mainstream performance at a meaningfully lower price.
Specifications
| Brand | Noctua |
|---|---|
| Model | Noctua NT-H2 , NT-H2 |
| Compound Type | Metal-Oxide (no metallic particles) |
| Thermal Conductivity | ~9.0 W/mK |
| Electrical Conductivity | Non-Conductive |
| Package Size | 1.4g / 3.5g / 10g tubes (includes cleaning wipes) |
| Recommended Use | Mainstream CPU/GPU, High-end CPU/GPU |
| Reapplication Interval | Long-term stable per Noctua testing (rated up to 5 years) |
| Safety Notes | None |
Expert Review
Rated by the Consumercarts editorial team, not by users
Best for
- Buyers who want a forgiving, thick-consistency paste that won't migrate during application. This is a genuine practical advantage for less experienced builders.
- Anyone who wants to avoid repasting for as long as possible. Noctua's own extended stability testing backs a genuine 5-year longevity claim.
- Builders already using Noctua coolers who want a matched-ecosystem product. Many Noctua cooler bundles include NT-H2 pre-applied, and the included cleaning wipes support a clean re-application later.
Not for
- Not for buyers on the tightest possible budget. Arctic MX-4, covered elsewhere on this site, delivers strong mainstream performance at a meaningfully lower price.