Guru3D Thermal Paste Roundup 2019

Cooling 192 Page 7 of 13 Published by

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Thermal Grizzly, Thermaltake, Zalman



Thermal Grizzly Conductonaut

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Name

Thermal conductivity

Density

Electrically conductive

Ease of use

Comments

Thermal Grizzly Conductonaut

73.0 W/mK

6.24 g/cm³

Yes

Hard

 

  

Metal-based thermal pastes require a bit more expertise and caution during the application, and that is not just because they are electrically conductive. Firstly, the heatsink needs to be thoroughly cleaned with isopropyl alcohol before the paste can be applied. Then, you need to apply a very small amount of paste and spread it evenly with the provided brush. Luckily, the Thermal Grizzly Conductonaut comes with all the tools that make the application process as easy as possible; simply follow the instructions.


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Keep in mind that you must not use it on aluminium heatsinks, as the liquid metal might damage them and leave black stains. Depending on your cooler, heatsink, and the rest of your rig, the Thermal Grizzly Conductonaut can lower your temperatures by over 10°C. Lower temperatures will allow you to further overclock your GPU and/or CPU, offering much better performance. With 73 W/mK, the Thermal Grizzly Conductonaut is the best thermal paste on the market right now. Those who wish to push their performance to the max should definitely give this metal paste a chance. Just be careful and take your time when applying it, and you won’t be disappointed.


Thermal Grizzly Kryonaut

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Name

Thermal conductivity

Density

Electrically conductive

Ease of use

Comments

Thermal Grizzly Kryonaut

12.5 W/mK

3.70 g/cm³

No

Easy

 


The Thermal Grizzly Kryonaut is known as one of the best non-conductive thermal greases out there (and also that's why it is daily used in my setup). It’s also one of the most expensive pastes. Priced twice as high as the Noctua NT-H1, yet it the pack contains 5.5 G of paste. The Thermal Grizzly is aimed only at hardcore PC builders.
Although pricey, the paste delivers what it promises. At 12.5W/mK it’s the most thermally conductive ceramic paste, and it doesn’t conduct electricity at all. It requires no curing time, it’s easy to apply, and according to other reviews, it provides you with up to 3-4° lower temperature than Arctic Silver 5 and Noctua NT-H1. If you apply the paste properly, the pack will be good for 20 applications max. You can also get the Thermal Grizzly Kryonaut 11.1G version, which is even more cost-effective in the long run.


Thermaltake TG4

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Name

Thermal conductivity

Density

Electrically conductive

Ease of use

Comments

Thermaltake TG4

n/a

n/a

No

Hard

 


There is no data for this product on the website. According to the manufacturer, it should have a long lifespan and high fluidity (therefore also be easy application). The weight is 1.5g so it should be fine for 5-6 applications on the CPU. It’s been designed for extreme performance. It’s quite thick and hard to spread.


Zalman ZM-STG2

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Name

Thermal conductivity

Density

Electrically conductive

Ease of use

Comments

Zalman ZM-STG2

4.1 W/mK

n/a

No

Medium

 

  
With Zalman STG-2, the main advantages are high efficiency, ease of application, and an acceptable price. In the tube, there is 3.5 g of a product based on silver compounds that does not conduct electricity. STG-2 can work in temperatures from -40 * C to 150 * C, and its thermal conductivity is 4.1 W / mK.

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