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PTM7950 Phase Change Thermal Pad
PTM7950 Phase Change Thermal Pad
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Description
At long last, the legendary Honeywell PTM7950 Phase Change Thermal Pads from this video are available on lttstore!
If you're looking for a thermal interface material that offers higher performance than standard paste, but you don't want to go through the trouble of something like liquid metal, this is a fantastic middle ground for any PC or DIY server installation. Many laptop manufacturers also go for a thermal pad rather than paste on CPU & GPU installs, so if your older laptop needs a refresh we've got you covered.
PTM7950 sources tend to be overpriced or unreliable in most cases, so we're super proud to offer an affordable, trusted source for this unique thermal material.
First time using a thermal pad like this? Check out our quick installation guide here
IMPORTANT NOTES:
Your thermal pad may undergo one or more phase changes during shipping, resulting in it arriving in a slightly deformed state. This is normal and will not result in performance issues of any kind after installation -- your heatsink will ensure even coverage.
In the event of any leakage from the product packaging, please contact customer support.
Unfortunately we cannot accept returns for thermal pads with open product packaging.
Product Information
Thermal Resistance: 0.04°C·cm²/W
Specific Gravity: 2.8 g/cm³
Size Guide










It works - not in the way I expected.
My temps and utilisation are more stable than with the stock thermal goop on my AIO, but the entire rig now runs colder. I was expecting it to pull even more heat from the CPU, but actually, it’s exhausting less heat than before - supposedly because it’s more efficient at pulling the heat and therefore it doesn’t get as hot.
Installation is simple, just measure and cut. It would be good if LTT provided some cutting guides for common uses, eg AM4, AM5, and Intel’s many schemes to make it easier - maybe even some basic paper/card cutting guides in the box. Otherwise, a great product.
Running a i9-14900kf with the PTM7950 Thermal pad running 70c in games pushing 86c in cinebench.
Note that you may need less than you might think. 75% coverage of your processor or GPU die is adequate. I got 2 but only ended up using 1. I redid the thermal paste on my desktop CPU and the chip with the heat sink on the motherboard. I also redid the paste on a laptop (CPU + discreet GPU) and on my discreet GPU card. All using only one 60x60mm square.
My gaming laptop is a few years old and the stock thermal paste just wasn't cutting it anymore. At sustained 100% usage the CPU was only reaching 2.6ghz because of the lack of cooling. With the thermal pad the CPU now reaches 3.9ghz sustained. MSFS 2020 had become unplayable over time because the thermals were so bad but now I can play on high settings at 1080p at playable frame rates. Definitely remember to throw it in the freezer before applying it though, it rapidly heats up once you start touching it and will quickly become impossible to handle.
Really great product. Had used regular thermal paste to this point. Gets the job done. But on my new build was looking to keep that temp down. I recommend it.
