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ARCTIC MX-4 (45 g) - Premium Performance Thermal Paste for All Processors

  • Based on 1,384 reviews
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Availability: In Stock.
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Arrives Wednesday, Sep 16
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Style: MX-4 (45 g)


Features

  • WELL PROVEN QUALITY: The design of our thermal paste packagings has changed several times, the formula of the composition has remained unchanged, so our MX pastes have stood for high quality
  • EXCELLENT PERFORMANCE: ARCTIC MX-4 thermal paste is made of carbon microparticles, guaranteeing extremely high thermal conductivity. This ensures that heat from the CPU/GPU is dissipated quickly & efficiently
  • SAFE APPLICATION: The MX-4 is metal-free and non-electrical conductive which eliminates any risks of causing short circuit, adding more protection to the CPU and VGA cards
  • 100 % ORIGINAL THROUGH AUTHENTICITY CHECK: Through our Authenticity Check, it is possible to verify the authenticity of every single product
  • EASY TO APPLY: With an ideal consistency, the MX-4 is very easy to use, even for beginners

Description

The surfaces of processor chips and cooler floors are covered with microscopic dents; ARCTIC‘s MX-4 thermal paste is composed of carbon microparticles which fill these cavities. This leads to extremely high thermal conductivity, ensuring that heat is dissipated quickly and efficiently from the CPU or GPU. With its outstanding performance, the MX-4 is not only an excellent choice for overclockers and enthusiasts, but also for other sapplications that require thermal transmission. Thanks to its consistency, MX-4 is easy to apply, even for beginners. The video in the picture gallery demonstrates the application technique to avoid air pockets between processors and coolers. In contrast to pastes based on metal oxides or liquid metal, ARCTIC’s MX-4 is metal-free and not electrically conductive. This eliminates the risk of short circuiting, and eliminates the need to worry about corrosion damage to the radiator floor caused by liquid metal. To ensure that your paste is genuine, there is the ARCTIC Authenticity Check. This allows every product to be reliably verified. A counterfeit offers neither the performance nor the durability of the original ARCTIC pastes. Density: 2.50 g/cm³ Viscosity: 31,600 Poise Volume Resistivity: 3.8 x 10¹³ Ω-cm Continuous Use Temperature: -50~150 °C Colour: Grey ARCTIC, a leading manufacturer of PC coolers and components, initiated and continues to shape the trend towards quiet cooling systems.

Product Dimensions: 4.72 x 4.72 x 0.79 inches


Item Weight: 1.59 ounces


Manufacturer: ARCTIC


Item model number: ACTCP00024A


Date First Available: January 10, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Best value if you require it in this volume.
This is a big boy of a already amazing product at 45 grams. I have been happy with using MX4 for a while. I have used many other brands, MX4 is my most common go back to product. I use it when replacing thermal compound on console system, GPU's, and CPU's as well as 3D printers. I do enough repairs and new builds that I thought I needed more than a dinky thermal compound tube I have to replace every few months. This is good, but there is a lot. Sometimes there is a tad bit of separation in even the small tubes, so if anyone wants to avoid the mess that causes, press a small amount onto a napkin/cleaning cloth to make sure it is consistent before application. 45 grams is a lot of thermal compound though, but MX4 is surprisingly shelf stable which is why I am ok getting it in bulk. Performance wise, it is one of the best and I will admit there are some better options, but the performance difference is often miniscule until you get to liquid metal which can have its' own list of problems once you bridge over to that. This is probably the best value though as it is roughly twice to three times the cost but you get five times the amount. I got it at a $20 cost and 8grams costs around 7 dollars. ... show more
Reviewed in the United States on June 2, 2024 by BurazeKun

  • Great item
Good quality product. Easy to install. Great priced.
Reviewed in the United States on May 30, 2026 by Kahramon Umarov

  • Excellent thermal paste
Arctic Cooling MX-4 is an excellent choice for most users due to its reliability, good thermal conductivity (8.5 W/mK), and a convenient consistency that does not dry out over time and is easy to apply. It significantly reduces CPU temperatures, as confirmed by numerous user reviews, and is suitable for high-power systems and even overclocking. Overall, it's a versatile thermal paste that deserves a high recommendation. ... show more
Reviewed in the United States on November 26, 2025 by John

  • PERFECT
Fantastic value. Great to have around for refurbishing laptops. I use this stuff on my own desktop computer and was happy to find an "industrial size". Can't recommend it enough for everyday mid-range processors. Makes older i5s and i7s totally usable in 2026, which I love since the average laptop's build quality just gets worse and worse as time goes on. ... show more
Reviewed in the United States on January 22, 2026 by Tony Brunelli

  • Awesome
I always buy this item for my computer club. Awesome
Reviewed in the United States on May 31, 2026 by Miraziz Mirzaliyev

  • Love this stuff.
This is still the best thermal paste for the price. I've never had a problem using the MX-4. Love the fact that you can buy it in large amounts
Reviewed in the United States on February 4, 2026 by this is fun

  • Excelente producto, envío lento
El producto muy bueno y original por supuesto. Lo único malo fue el tiempo de envío se tardaron muchísimo en enviarlo al rededor de 2 semanas.
Reviewed in the United States on April 4, 2026 by Cliente de Kindle

  • Buena calidad a buen precio.
Llego en orden sin ningún tipo de maltrato físico, lo recomiendo.
Reviewed in the United States on August 13, 2026 by Livio

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