Polartherm X8 5g Thermal Paste

Keep your mainstream PC cool and stable with Polartherm X8 5g thermal paste (Link opens Polartherm product page). This versatile 5g package strikes a great balance, offering an outstanding price-performance ratio for everyday users, gamers, and DIY builders. Born from German innovation, the X8 features a low-viscosity formula for incredibly easy application. Specifically, it provides very good thermal conductivity and high durability, ideal for processors up to 70W TDP.
Discover Polartherm X8 5g
Designed for both performance and convenience, the Polartherm X8 compound utilizes a silicone oil-based carrier with aluminum and zinc oxide powder. Its low viscosity is a key advantage, making application exceptionally simple – it often spreads perfectly just from the cooler’s mounting pressure. This makes Polartherm X8 5g ideal for beginners and experienced users alike, even though helpful applicator tools are included.

This thermal paste provides high thermal conductivity suitable for processors with a Thermal Dissipation Power (TDP) up to 70 watts. This includes popular mainstream CPU series like Intel® Core™ i3/i5 & Core™ Ultra 3/5, and AMD Ryzen™ 3 & 5. While its lower viscosity might offer slightly less resistance to the “pump-out effect” compared to the higher-viscosity X10 over extreme long-term use on hotter chips, the Polartherm X8 5g offers reliable high durability for its intended applications. Find compatible mainstream CPUs here.
Optimized for CPU and GPU cooling in standard air and liquid cooling systems, Polartherm X8 is a versatile choice. Its non-electrically conductive formula (0 pS/m) ensures safety during application near sensitive components. This practical 5g package contains enough paste for approximately 8-10 typical CPU applications, offering great utility for enthusiasts maintaining or building multiple systems without needing a large bulk quantity. Explore other PC cooling components.
Polartherm X8 (5g) Specifications
- Product Name: Polartherm X8 Thermal Paste
- Package Size: 5g
- Item Number / EAN: PT-X8-005 / 4260711990960
- Keyphrase Focus: Polartherm X8 5g
- Operating Temperature: -50°C to +150°C
- Density: 2.6 g/cm³
- Color: Grey
- Base: Silicone Based (with Aluminum & Zinc Oxide)
- Electrical Conductivity: 0 pS/m (Non-conductive)
- Viscosity: Low (Value not specified)
- Thermal Conductivity: High (Value W/mK not specified)
- Application Count (5g): Approx. 8-10 CPU applications
- Included Accessories: 1x PT Spatula, 1x Applicator
- Recommended For: CPUs (Intel Core i3/i5/Ultra 3/5, AMD Ryzen 3/5), GPUs, Notebooks, ICs (TDP ≤ 70W)
Common Questions
Target Audience
Polartherm X8 5g is well-suited for mainstream PC users, gamers, and DIY enthusiasts who build or maintain systems periodically. It’s ideal for use with processors up to 70W TDP (like Core i3/i5, Ryzen 3/5). The 5g quantity provides enough paste for several applications, making it a practical choice for users who need more than a single-use amount but less than bulk.
Key Reasons to Choose
Choose Polartherm X8 5g for its excellent combination of ease of use, reliable performance for mainstream hardware, and practical quantity. Key reasons include its foolproof low-viscosity application, solid thermal conductivity for CPUs up to 70W TDP, and the convenient 5g size offering enough paste for 8-10 uses. Its non-conductive safety and included tools add to its overall value.
What are the Pros?
- Outstanding Price-Performance Ratio: Great value for the quantity and performance.
- Extremely Easy Application: Low viscosity simplifies the process.
- Good Thermal Performance: Effective for mainstream CPUs/GPUs (up to 70W TDP).
- Practical 5g Quantity: Ideal for multiple applications (8-10 uses).
- High Durability: Reliable for intended use cases.
- Non-Electrically Conductive: Safe application (0 pS/m).
- Includes Applicator Tools: Spatula and applicator provided.
What are the Cons?
- Not for High-End CPUs: Less ideal for components exceeding 70W TDP compared to higher-viscosity pastes.
- Specific Performance Metrics Missing: Exact Thermal Conductivity (W/mK) and viscosity values are not provided.
- Lower Pump-Out Resistance vs. X10: May require reapplication sooner than X10 on hotter chips over very long periods (though generally fine for target TDPs).
Our Verdict
Overall, the Polartherm X8 5g thermal paste is a fantastic choice for mainstream users and builders looking for an affordable, reliable, and incredibly easy-to-apply thermal solution. It delivers dependable cooling performance for processors up to 70W TDP. The 5g size hits a sweet spot, providing enough paste for multiple builds or maintenance tasks without significant excess. Therefore, for its target audience prioritizing ease of use and value for several applications, the Polartherm X8 5g comes highly recommended.


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