Noctua NT-H1 Thermal Grease Review

One of the better CPU cooling choices!


The overall performance makes this thermal compound worth every penny you spend.


Easy to apply/clean, not expensive and long lasting.


Performance could be a little better.

As always, thermal grease plays a very important role in keeping your CPU cool as the heat-sink and fan do. Thermal grease/compounds allow you to run your CPU a few degrees cooler. Choosing the right compound is the key to getting the best results because all compounds perform differently.

A good choice of thermal grease will not only allow your system to run cooler but should also be easy to apply and take off at the same time. So we test the Noctua NT-H1 thermal compound to see if it the best or not.


MotherboardDFI LanParty UT nF4 SLI-DR
CPUAMD Athlon 64 FX-60
RAM2 x Corsair 1GB PC3200 DDR
Graphics CardeVGA GeForce 7800 GT (256 MB)
StorageWestern Digital 160GB
CoolingStock Fan and Heatsink
Power SupplyUltra X4 500-Watt
PC CaseAZZA Helios 910R Mid Tower Case
Operating SystemMicrosoft Windows 7 Enterprise


To test the NT-H1 thermal grease, we will measure the temperatures of the CPU at both idle and on load using SpeedFan v4.40. To test at idle, we will leave the computer running for an hour without running anything and then take the temperature measurements. To test at load, we will use CPU Burn-in v1.01 for 1 hour to load the CPU at 100% and then record the temperatures.

Just for comparison reasons, we will also test the Tuniq TX-3 thermal grease and the Arctic Silver (not Arctic Silver 5) thermal grease the same way. I personally would like to see how this NT-H1 holds up against the TX-3 since I had great results during my tests.


Thermal GreaseTest TypeTemperature
NT-H1Idle (after 1 hour)35°C
NT-H1Load after 1 hour)48°C
TX-3Idle (after 1 hour)34°C
TX-3Load after 1 hour)47°C
Arctic SilverIdle (after 1 hour)38°C
Arctic SilverLoad after 1 hour)52°C

Surprisingly, the TX-3 performed better than the Arctic Silver and the NT-H1. I had thought that the NT-H1 would have performed about the same or better than the TX-3 but it did, however, beat the Arctic Silver (which was expected). On the other hand, while the NT-H1 didn’t beat the TX-3, it did come pretty close to it and the difference was on average only 1 to 2oC. So, I wouldn’t take it out of the picture either. It is a great value for the price you pay for it. Now I would love to test the new Arctic Silver 5, which I hear is supposed to be really good. I would think that it would either come close to or beat the TX-3. So I will surely have to give it a try and see for my self.


I didn’t have any issues applying the NT-H1 compound on my CPU, unlike the issue I had with the TX-3 (it is tough to spread as it is very thick). You don’t have to use a strong piece of cardboard to spread it on the CPU. Just squeeze some on the CPU and either use a little piece of cardboard or your fingers to spread a thin layer evenly on the CPU.  Then, install the heat-sink on it and you are good to go. It is also very easy to clean off, unlike the Arctic Silver grease that I used before. Arctic Silver grease is very hard to wipe off and it gets all over your hands and sometimes on the processor itself (the pins of the processor). I got very good results even with the stock fan and heat-sink with the AMD Athlon 64 FX-60 processor. The NT-H1 costs about $6.99 online. I don’t really have any other complaints about this thermal grease besides the performance.


Although the Tuniq TX-3 beat the Noctua NT-H1 thermal grease by 1 or 2 degrees, I would still highly recommend it. It basically boils down to ease of application and performance. The NT-H1 and TX-3 both provide really good performance despite the temperature difference. Personally I would use either NT-H1 or the TX-3 depending on which is readily available at the time. I really have no preference at this point.

highly recommended award


Volume1.4 ml (for atleast 15 applications)
Specific Gravity2.49 g/cm3
Recommended StorageBefore Use Up to 2 years
On the CPU Up to 3 years
TemperaturesPeak Operating -50°C to +110°C
Recommenedd -40°C to +90°C
Other FeaturesExcellent performance.
Maximum ease of use & efficient dosage.
Excellent long-term stability.
Not electrically conductive.
Suitable for compressor cooling.