Thermal Paste Roundup 2015 – 47 products tested with air-cooling and liquid nitrogen (LN2)

Thermal Paste Test Requirements and Basics

Following the test from 2013 a lot of thermal pastes are very close together taking a look at the performance. Differences of only 0.1 °C are very common and this is also the interesting and challenging point of thermal paste reviews.

A lot of websites just use CoreTemp and measure the differences in the CPU core temperature. The issue is that a temperature change of 1 °C, which is the smallest step, is already crashing the whole test. Also a varying room temperature of only 0.5 °C can easily ruin your results.


In the past I always measure the delta temperature between the CPU-Heatspreader and the base of the CPU-Cooler using K-Type thermal probes. However these temperature probes are quite inaccurate with sometimes up to 1 °C temperature differences depending on the quality of your probe and the thermometer.

Measuring the delta temperature eliminates the measuring errors of the changing room temperature. However the K-Type probes are still not accurate.


  1. Introduction and Basics
  2. Test requirements
  3. Improvements compared to the last test
  4. Test circumstances and consistency
  5. Gramm vs. Volume
  6. Air-Cooling results and buy recommendation
  7. Extreme Cooling Test
  8. Extreme Cooling Test (results#1)
  9. Extreme Cooling Test (results#2)
  10. Extreme Cooling Test (results#3)
  11. Product Details
  12. Conclusion