Top 9 Best Thermal Paste For Laptop: A Guide To The Top Picks Of 2021


Best Thermal Paste For Laptop

Best thermal paste for laptop is often viewed as one of the more commonly overlooked components for many computer setups. The reason for this may be because the coolers come with thermal paste already applied or a lack of experience. Even though pre-applied thermal paste may work, it often is quite old and may have been in the box for a long time. Hence, it is better to buy and use your thermal paste when getting the CPU installed for better temperature.

Thermal pastes get dried which is why they need to get changed yearly. If you allow the paste to remain for too long, you will begin to experience performance-based issues which will lead to steady overheating that may cause damage to your CPU.

Is it possible to use get thermal pastes applied? Which of the thermal pastes is the best for your needs? Keep reading to find out the best thermal pastes for 2021.

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What To Look For Before Buying Thermal Pastes

When you buy a new CPU, you may use it for modeling, enhanced gaming, or any other type of work. You need to buy the best paste out there to get the CPU in a cool state without overheating or overclocking.


Note that the thermal paste is a thermally conductive fluid that can get used between the cooler and CPU. It helps to avert overclocking in the system. If what you seek is a thermal paste to serve a maximum of two processors, you do not have to bother about the paste availability or density. But note that all thermal paste will have enough paste to get installed on your processor.

To improve the application process, you have to go for thermal paste using enough amount of density. This will help it squeeze all through the processor. The liquid paste comes with a lower density than the thermal paste. It should also have a consistent evenness to apply the paste to the GPU or CPU direct. Also, it ought to be a carbon-based compound and ought to be devoid of any form of electrical conductivity. This is so that it can be easy to apply for you without having to use short circuits.


You should be careful when applying the thermal paste because you may get faced with the harm caused by a short circuit. You should opt for a paste that has low conductivity. Such conductors can get used without short circuits regardless of whether it contacts the electrical parts.

The best way to use the paste on your CPU is to use a small amount in the middle and let the heatsink move the paste to the processor. What this technique does is prevent having to spread the paste over the heater and blends best with a less viscous paste.

Note that if the thermal paste can conduct electricity, then it could lead to short circuitry. You have to select the product while confirming its conductivity state. Once you note that it is not conductive (electrical), you have your thermal paste!

Thermal Conductivity

When purchasing a thermal paste, ensure it has enough thermal conductivity. Note that thermal greases help in controlling the microprocessor’s temperature in the electronic device.

They should have a high level of reliability and versatility to ensure that the system remains safe and cool

They must provide high versatility and reliability to keep the system cool and safe. Always remember that thermal pastes always have a reasonable thermal rating which means they can get the heat to the heatsink from the processor. In case the thermal conductivity ranks better than the temperature, it will fall in less time.

What Is The Mode Of Operation Of The Thermal Paste?

Thermal pastes can fill even the smallest gaps that exist between the processor unit and heatsink which implies that they can give a constant connection while cooling with ease. There are three distinct types of pastes out there in the market. The options include metal-based, silicon-based, and ceramic compounds. The metal variant gets used more because it gives optimum conductivity. The paste will continue flowing like a liquid and has a peak temperature of 150 degrees while some other pastes can withstand as much as 300 degrees C.

How To Use A Thermal Paste

Using thermal pastes as a first-timer can be challenging because if you apply them excessively, it may cause a lot of problems to the components of your computer. If you opt for carbon or ceramic-based pastes, you may have to apply a little bit more paste over where the external part of the CPU touches the heatsink.

Remember to press both pieces at the same time and the paste will come out and cover the air bubbles. Note that thermal pads are easier to deal with because they help remove the thermal grease with great ease.

What Are The Types Of Thermal Paste?

There are three distinct thermal pastes out there. Understanding their peculiarities will help streamline your eventual choices.


This thermal paste is more common in the market because it possesses a higher level of thermal conductivity. Also, it has heatsink compounds which are costly but can get used for overclocking and high powered gaming.

The metal particles that are most sought after include aluminum and silver. The major drawback of the metal-based compounds is that they are capacitive and conductive. They could cause damage to your computer components if they aren’t used with care over GPU or CPU.

Silicone or ceramic-based

Silicone-based pastes use ceramic pastes or metal oxides which get suspended inside silicone compounds. This thermal paste type is less expensive than the carbon and metal compounds. They do not conduct and the metal oxide determines the performance of the thermal paste. The metal oxides that get used inside include boron nitride, aluminum oxide, zinc oxide, boron oxide, and aluminum nitride. Ensure you do not select pure silicone paste because it has a lot of drawbacks avoid it.


This thermal paste has a similar performance to the metal-based thermal paste. They get made using carbon particles such as diamond powder, and graphite powder. One notable thing about them is that thermal conductivity is quite high and they are electrically non-capacitive and conductive. They are also far more costly than silicon-based thermal grease.

9 Best Thermal Paste For Laptop Reviewed

1. Arctic Silver 5 AS5-3.5G Thermal Paste

Arctic Silver 5 AS5-3.5G Thermal Paste

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This unique thermal paste comes as a conductive silver-based thermal paste that delivers high-quality comes with the best combination which helps it to act as a conduit for all vital projects. The Arctic Silver 5 has a unique formula that is made to thin out when used. It then thickens and is ready to be spread and give the expected performance. It ranks as one of the top liquid metal pastes out there.

The paste gets made by Arctic Silver Inc. which is an American company that creates thermally conductive compounds for different electronic parts. The compound in this fluid composes of 99.9% of micronized silver that helps it to regulate the temperature of the processor even when it is doing a power demanding function. Also, it comes with sub-micron zinc oxide.

Even though it gets made of silver, it is a ceramic compound. Hence, you should not get it spilled in other components. One other vital thing you need to be mindful of is that this compound takes some time to burn in. hence, you may not immediately see results. Ensure it settles in for some time before it begins cooling and lower the heat by about 12 degrees.

Except for the time needed to begin the cooling process, this thermal paste is a perfect choice. Although it can get complicated to apply, once it gets done, it begins to work with ease. In summary, it is ideal due to the premium performance and silver components. It is one of the best thermal pastes out there.

  • Can cover 16 square inches of heatsink surface
  • Easy to apply and affordable
  • It is composed of zinc oxide, silver, and boron nitride
  • Ideal for amateurs
  • Easy to clean
  • The external packaging could get improved
  • It has a thick applicator tip

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2. Cooler Master High-Performance Thermal Paste – (HTK-002-U1)

Cooler Master High-Performance Thermal Paste

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This thermal paste comes with silicone-based materials which help to level up the cooling system at a unique price. Due to the versatile nature of this paste, it serves different devices such as VGA cards, CPUs, GPUs, chipsets, motherboards, and the likes. Applying this fluid is quite easy even with people with little experience. It has a wonderful applicator that helps spread it all over the point and give it the desired effect needed for the best output.

This thermal paste has a spreader that is card-shaped along with some sticker templates which would help you apply the fluid without errors. It is useful for keeping the temperature at about 65 degrees. This makes it ideal for heavy-duty gaming on your laptop. The paste has a shelf life of about two years.

It comes with 2 grams of paste and needs to get changed once a year. This may suffice for a new user but may not be ideal for a heavy user. What’s more? It is good value for money!


  • Silicone-based compound
  • Comes with ZIF socket templates
  • It has a thermal conductivity of 8W/mK
  • It has a wide range of applications
  • Comes with a spreader and templates
  • It is not expensive
  • Limited shelf life
  • Simple design

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3. Corsair TM30 Performance Thermal Paste

Corsair TM30 Performance Thermal Paste

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The corsair TM30 thermal paste gets made by a company that handles CPU cooling. It has a reputation for creating the best quality liquid based CPU coolants. The corsair TM30 is a premium performance thermal paste made by Corsair.

This thermal paste offers a thermal conductivity of 3.8 W/mK. It gets made with low viscosity which makes it fill the micro-level gaps. It is zinc oxide based and has a very low impedance which reduces the CPU temperature. This gets done by filling the gaps that exist between the heat sink and processors HIS.

The thermal paste is electrically neutral and does not have volatile constituents. The thermal paste is easy and safe to use for anyone.


  • Thermal conductivity: 3.8 W/mK
  • Weight: 1.5 gram
  • Dimensions: 10 cm X 16cm
  • Low viscosity
  • Budget-friendly
  • It fills the micro-level gaps
  • It can last more than 5 years
  • It comes with a spreader and stencil to help make the installation easier
  • Because of the paste’s low viscosity, it may spill out from the CPU’s IHS

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4. Thermal Paste, 5 Pack ThermalCoolFlux(TM) High-Performance Polysynthetic Silver Thermal Paste

Thermal Paste, 5 Pack ThermalCoolFlux(TM) High-Performance Polysynthetic Silver Thermal Paste

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Toothpaste can get used as an optional thermal material although with a low valued-TIM. With ThermalCoolFlux warm glue comes in 5 packages of syringes with each of them having 1.5 grams of such compound. The different holders in it come with a longer shelf life than the solitary cylinder. This ensures you have a chance to maintain their crispness until when you need them.

ThermalCoolFlux gets regarded as a silver shading thermal paste. Even though the materials used in making it are not explicit, the quality is not in doubt. The paste recorded a 3.2 W/mK of conductivity which indicates high performance at a low cost.


  • Thermal conductivity: >3.2 W/mK
  • 5g per pack
  • Silver polysynthetic thermal paste grease
  • Very affordable
  • Ease of application
  • Strong quality
  • Gets dried up quick

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5. ARCTIC MX-2 Thermal Compound Paste, Carbon Based High Performance, Heatsink Paste

ARCTIC MX-2 Thermal Compound Paste, Carbon Based High Performance, Heatsink Paste

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The ARCTIC MX-2 thermal compound paste is one of the best thermal paste for laptops with a track record for quality. The design of this thermal paste has evolved and the composition has maintained its initial state. Also, with the unique temperature reduction performance, this MX-2 is perfect for GPU and CPU cooling as well as other applications between the heatsinks and power semiconductor components.

The MX-2 is non-electrical conductive and metal-free which ensures that it does not have the risk of experiencing a short circuit which gives your VGA and CPU more protection. Unlike the silicon and metal compounds, the MX-2 does not experience issues in a long time. Once you use it, you do not need to use it for over 8 years.

Another unique feature of this paste is that it can get installed with ease even for someone using it for the first time.  The compounds in the paste ensure it has a high level of thermal conductivity. This helps the heat created in the processor to be effective and dissipate quickly. The MX-2 has a unique reputation as one of the most reliable brands out there.

The paste is safe to apply because it does not have any metallic particle hence, electrical conductivity is never a problem.


  • Viscosity: 850 Poise
  • Specific gravity: 3.96 g/cm3
  • Volume resistivity: 1.22 X 10^12 ohms per centimeter
  • No bleeding
  • Low thermal resistance
  • Net weight: 4g
  • Durability: 8 years
  • Density: 2.32g/cm3
  • Thermal conductivity: 8.2 W/mK
  • Good performance
  • Easy to use
  • Large tube
  • Good ratio
  • Could be more durable

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6. Easy cargo 6.5 W/m-k Thermal Paste Kit

Easy cargo 6.5 W/m-k Thermal Paste Kit

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The Easycargo 6.5 W/m-k thermal paste kit is one of the best thermal paste for laptop CPU designed to make your Laptop last longer. This high-performance thermal paste can get used for cooling your CPU, processor, GPU, IC chips, and the likes. The versatility of the thermal paste makes it the toast among many.

Each package of this paste comes with 1 gram of premium quality 6.5 W/m-K thermal paste along with the tool for application. The paste has a thermal resistance of 0/0016 k-in/W along with a working temperature of -30 degrees/280 degrees Celcius. It is perfect for liquid cooling solutions, overclocking, reliability, and high stability.

It has low oil content, odorless, non-corrosive, and non-toxic and flame preventing silicone-based. It has a syringe applicator which makes it convenient for storage and versatile for all applications such as Northbridge chipset and CPU. It is ideal for high powered LED, SSD computers and different household appliances, and the likes


  • Thermal resistance: 0.0016 k-in/W
  • Thermal conductivity>6.5 W/m-k
  • Can get used for the cooling interface of CPU, heatsink, GPU, etc.
  • Working temperature: -30/280 c.
  • Each pack has a 1 gram premium performance thermal grease
  • High-performance thermal grease for the heatsink interface
  • Excellent thermal conductivity
  • High reliability and stability
  • Odorless and low oil content
  • Non-volatile
  • Suitable for high powered LED
  • could last longer

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7. HY-710-10pcs Thermal Conductivity: >3.14W/m-k Thermal Paste

HY-710-10pcs Thermal Conductivity

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This silver content thermal conductive grease gas a thermal conductivity of 3.17W/m-k. It gets built to produce premium performance with the ability to withstand voltages exceeding 10,000 volts. It has low thermal resistance which ensures that it retains its paste form for an extended time. Also, it has a vast operating temperature range as well as optimum performance under -30 C-240 C.

On the environmental angle, it has high heat dissipation performance and is cost-effective. The HY710 thermal conductive paste gets leveraged on the high thermal conductivity of silver to cover the absence of thermal conductivity in carbon-silicon compounds. The paste has a silvery look and has a performance that is much more than what is offered by carbon-silicon compounds.

This paste passes all global environmental certifications relating to safety and testing standards.

You will enjoy service and warranty for all products purchased.

This paste gets created to help the ever-increasing overclocking community. It shows the best heat transfer capabilities and can use the capabilities of an excellent cooling system. In the case of the nano-particulate build, zinc oxide and aluminum that is in the paste leverage on the uneven nature of the heat medium such as the heat sink and CPU.

Once the paste gets used, it doesn’t change even at temperatures of up to 80 degrees. Also, it does not cure for an extended period while retaining its features. There is also no issue with the circuit shorts because it is not conducive.

One other outstanding feature of this paste is that it comes with a nano-particle structure. The build of the paste includes zinc oxide and fine grain aluminum.


  • Thermal conductivity: 3.17W/ M-K
  • Thermal Impedance: <0.067- in2/W
  • Specific gravity: >2.4 g/cm3
  • Viscosity: 1000
  • Comes with an applicator for even distribution
  • Odorless and non-toxic because of its silver build
  • Excellent thermal conductivity
  • High reliability and stability
  • Can serve 40 large CPUs
  • Comes in a container that makes it difficult to scrape

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8. Thermal Grizzly Kryonaut Thermal Grease Paste

Thermal Grizzly Kryonaut Thermal Grease Paste

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The Thermal Grizzly Kryonaut is one outstanding thermal paste that has gotten several positive reviews from users. It comes with a combination of nano-aluminum particles which give it’s the best conductivity and performance. Even though it comes inside single-gram tubes, the extra amount spent is worth it.

This paste got designed for very demanding applications and even the overclocking world. The paste has a very high thermal conductivity of 12.5 Wm/k, it also has 1.0 grams which is enough for a lot of applications. It helps for easy cleaning of the CPU using enclosed cleaning pads. You may apply the heat-conducting paste using the enclosed spatula.

This paste has a unique support structure that ensures no drying process and begins at 80 C. what this support structure does is to make sure that the contained nano-aluminum, as well as tin oxide components of the paste,  combine thus removing all unevenness of the heat output. The heat sink gets compensated with the unique thermal conductivity.


  • Superior thermal conductivity
  • Suitable for overclocking
  • Doesn't have a cure time
  • Stable for a long time
  • Content: 1g + extra spatula and 2X cleaning pads
  • Viscosity: 120-170
  • Thermal conductivity: 12.5 wm/k
  • Spec weight: 3.7 g/cm^3
  • Temperature: -200 C/ +350 C
  • Among the best when it comes to overclocking
  • It is a blend of zinc oxide and nano-aluminum
  • Perfect thermal conductivity suitable for best performance for different applications
  • The website is not available in English
  • Low volume and high price

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9. ARCTIC MX-4 (8 Grams) – Thermal Compound Paste

ARCTIC MX-4 (8 Grams) - Thermal Compound Paste

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The Artic Mx-4 is one of the best thermal paste for a laptop processor designed in a manner to prevent excessive heat dissipation from the components. It also supports the required stability to propel the system to the needed limit. One other outstanding feature of this thermal paste is that it is durable. Unlike what is obtainable with silicon and metal thermal fluids, the ARCTIC Mx-4 doesn’t have issues with time. When you apply it, you don’t have to apply again because it can last up to 8 years.

This thermal paste is non-electrical conductive and metal-free which removes the risk of a short circuit. This gives more protection to the VGA and CPU cards. This fluid is much better than liquid metal and gets made up of carbon micro-particles which makes it have very high thermal conductivity.


  • Better than liquid metal
  • High durability
  • Conductivity: 8.5 W/mk
  • Weight 4 grams
  • Electric conductivity: no
  • It is better than liquid metal
  • Safe application
  • High durability
  • Long-lasting
  • Low volume

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How To Choose Thermal Paste For Laptop CPU

Before you select a thermal paste, there are things you need to consider.

What is its composition?

This will affect your choice in two distinct ways. In a situation where the compound is of metallic composition, you need to handle it with care so as not to get it close to the circuits. Aside from being electric conductive, they may also cause your circuit boards to corrode while may cause your gaming board to damage.

In the case of the aluminum heatsink, note that the majority of liquid metal pastes will affect the aluminum and cause an adverse reaction. Always choose something that is not corrosive.

Also, if the paste is not electrically conductive, you may use it for all applications without the possibility of your components shorting. Note that liquid metals are ideal for transferring heat.

Thermal cycles

Several products need to pass through certain cycles before they can attain optimum functionality. What this means is that they must get exposed to high-temperature differences to settle in the different corners. The more the viscosity, the greater the thermal cycles it will need for the compound to get activated.

What are the key specifications?

Before you buy a thermal paste, you need to know that the greater the thermal transfer, the higher the conductivity will be. Hence, a 12.5 W/mk will have less conductivity than a 38 W / mK. But, your result may differ depending on the components. You will also notice the specific gravity. This talks about the paste’s viscosity. Lesser viscosity values imply greater fluidity which makes it easier to use.


Note that a syringe weighing 1.5 grams will have about 4 uses if you use it on an AM4 or LGA 1151 chip. In the case of Threadripper or LGA 2066 CPUs, you will need 3.5 grams or more.

Frequently Asked Questions

How often should I replace thermal paste?

More often than not, you do not have to get the thermal paste re-applied. But, if you intend to remove the cooler for reasons best known to you other than to apply the thermal paste repeatedly, you should use a thermal paste.

How long does thermal paste last?

If you are using a thermal paste of low quality, it may get dried within three years. But good ones may last up to four years.

what happens if I don’t put the thermal paste in the processor?

If you don’t use a thermal paste between the heat sink and CPY could lead to overheating and overclocking. This may take time to happen but it will happen quicker than when you use a thermal paste.

What is the effect of excess thermal paste on the CPU?

Using excess paste may likely not cause damage to a modern PCPU. Note that the available thermal protection is too good. But, when you use too much paste, it could cause your computer to experience overheating.

will toothpaste work as a good thermal paste?

You should never try using toothpaste as a thermal paste. Although they have some semblance, toothpaste does not come with cooling features.

should thermal pastes cover the CPU?

In the case where your PC belongs to the older generation that doesn’t have the metal cap, you will only need to use the paste on the blue square located in the CPU’s center.

Last Line

If you are searching for the best thermal pastes for your laptop, note that the nine pastes reviewed in the piece are the best out there. Each product listed here got investigated and vetted with each one serving the purpose it got formulated for. It suffices to say that you cannot go wrong in your choice here!

5/5 - (20 votes)

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