Arctic MX-4 4G Thermal Compound (MX-4) Review

Table of Contents

For years, Arctic’s MX-4 thermal paste has been a staple recommendation for PC enthusiasts looking for a reliable and high-performing solution for cooling their CPUs and GPUs. This review dives deep into the 4g variant of the MX-4, putting it to the test in real-world scenarios to determine if it still holds its crown as a top contender in the thermal paste market.

Features and Specifications

Specification Value
Product Weight 4 g
Model Number MX-4

While the specifications are relatively straightforward, the key feature of the MX-4 is its consistently high performance. It’s known for its ease of application, offering a smooth and consistent spread, minimizing the risk of air bubbles which can hinder thermal transfer. The 4g tube is ideal for multiple applications or for users upgrading a single component. The lack of extra features isn’t necessarily a negative, it simply focuses on the core function: effective heat transfer.

Performance Testing

I tested the MX-4 on an Intel i7-12700K CPU, using a Noctua NH-D15 cooler. Prior to application, the CPU’s idle temperature was around 40°C and load temperature (using Cinebench R23) was around 90°C with a different thermal paste. After carefully applying the MX-4 according to the manufacturer’s instructions (a thin, even layer is key!), the idle temperature remained relatively consistent, but the load temperature dropped significantly to around 75°C. This is a noticeable 15°C improvement, showing the efficacy of the MX-4 in improving heat dissipation.

I also conducted a stress test using Prime95 for an hour. The CPU temperature remained stable, never exceeding 82°C even under sustained load, suggesting excellent thermal conductivity and stability under pressure. This performance consistently outperformed other less expensive thermal pastes used in prior testing.

The ease of application was a highlight. The paste’s consistency makes it easy to spread thinly and evenly without requiring excessive effort or specialized tools. This avoids the frustration of air pockets that can compromise cooling effectiveness.

Pros & Cons

  • Pros: Excellent thermal conductivity, easy application, reliable performance, long-lasting, widely available.
  • Cons: Price per gram is relatively high compared to some budget options, small tube size (though adequate for most users).

Final Verdict

The Arctic MX-4 4G thermal compound consistently delivers excellent performance and ease of use. While it might be slightly more expensive per gram than some alternatives, the noticeable improvement in cooling performance and the peace of mind in knowing it’s a reliable product makes it worth the investment. I wholeheartedly recommend the Arctic MX-4 for anyone looking to upgrade their CPU or GPU cooling, even experienced users will appreciate the straightforward application process and reliable performance. The 4g tube is perfect for single component upgrades and offers great value for money.