Thermal Paste Comparison, Part Two: 39 Products Get Tested
It's time for the numbers. In addition to testing liquid metal compounds and thermally conductive adhesives, each paste is discussed on its own merits before we chart out the results of four usage cases. After all, these products behave differently.
Pastes: Xigmatek
Xigmatek PTI-G3606
Xigmatek’s entry-level paste is called PTI-G3606, and it sells at a mid-range price. Measured thermal performance is acceptable and its ease of use is even commendable. At the end of the day, this is a solid product at a fair price for mainstream hardware enthusiasts. It's simply not what we'd recommend for more hardcore overclockers.
| Xigmatek PTI-G3606 | |
|---|---|
| Thermal Conductivity | 5.0 W/(m*K) |
| CPU Water Cooling, High Pressure | 32.8 ΔT (22 °C ambient) |
| CPU Air Cooling, High Pressure | 36.9 ΔT (22 °C ambient) |
| CPU Air Cooling, Low Pressure | 37.3 ΔT (22 °C ambient) |
| GPU Cooling | 66.5 ΔT (22 °C ambient) |
| Electrically Conductive | No |
| Viscosity | 3 (1-10, lower numbers mean easier to use) |
| Ease of Use | 8 (1-10, higher numbers mean easier to use) |
| Application Hints | This paste seems best suited for the "lentil ball" method, and should be used in average-temperature rooms, from 70 °F |
| Price (approximate) | $6 (3 grams) |
Xigmatek PTI-G4512
Xigmatek's premium thermal compound doesn't even cost more than its entry-level offering. But the trade-off for better thermal performance is higher viscosity. Before using it, warm this paste up. Although it's not really for beginners, we do get a good price/performance ratio out of the PTI-G4512 from Xigmatek.
| Xigmatek PTI-G4512 | |
|---|---|
| Thermal Conductivity | 2.5 W/(m*K) |
| CPU Water Cooling, High Pressure | 32.4 ΔT (22 °C ambient) |
| CPU Air Cooling, High Pressure | 36.4 ΔT (22 °C ambient) |
| CPU Air Cooling, Low Pressure | 37.0 ΔT (22 °C ambient) |
| GPU Cooling | 66.0 ΔT (22 °C ambient) |
| Electrically Conductive | No |
| Viscosity | 5 (1-10, lower numbers mean easier to use) |
| Ease of Use | 5 (1-10, higher numbers mean easier to use) |
| Application Hints | The paste can be spread more easily if you warm it to 100-120 degrees Fahrenheit in a pot of water, sealed in a water-tight pouch. |
| Price (approximate) | $6 (3 grams) |
Xigmatek (Paste Bundled with Xigmatek Coolers)
This is another paste bundled with a cooler we picked up off the shelf. In our tests, the freebie fares slightly worse than Xigmatek's low-end aftermarket stuff, but not by much. It's an average compound that you shouldn't feel compelled to shy away from.
| Xigmatek (Paste Bundled with Xigmatek Coolers) | |
|---|---|
| Thermal Conductivity | Data not available |
| CPU Water Cooling, High Pressure | 33.2 ΔT (22 °C ambient) |
| CPU Air Cooling, High Pressure | 37.0 ΔT (22 °C ambient) |
| CPU Air Cooling, Low Pressure | 37.5 ΔT (22 °C ambient) |
| GPU Cooling | 68.0 ΔT (22 °C ambient) |
| Electrically Conductive | No |
| Viscosity | 4 (1-10, lower numbers mean easier to use) |
| Ease of Use | 7 (1-10, higher numbers mean easier to use) |
| Application Hints | This paste seems best suited for the "lentil ball" method, and should be used in average-temperature rooms, from 70 °F. It may be easier to use if you warm it up, though that's not a requirement. |
| Price (approximate) | N/A |
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Igor Wallossek wrote a wide variety of hardware articles for Tom's Hardware, with a strong focus on technical analysis and in-depth reviews. His contributions have spanned a broad spectrum of PC components, including GPUs, CPUs, workstations, and PC builds. His insightful articles provide readers with detailed knowledge to make informed decisions in the ever-evolving tech landscape