Honeywell PTM7950: The heat-conducting material of many new graphics cards explained 107 comments
Image: Mr. Smith
Everyone is familiar with thermal paste and thermal pads, more recently also for graphics cards, but what about phase transition material like the Honeywell PTM7950? This is currently being used for more and more RTX 5000 and Radeon RX 9000 cards. Computer reader Mr. Smith took a detailed look at the new product. His detailed PTM7950 reader test—a small volume of heat in the test with lots of background information and images—initially provides the reader with essential background on the technology and the difference from conventional thermal paste, and also clarifies where to actually purchase the product distributed to commercial customers:
What does the reader test cover? What is the PTM7950? What is the difference from conventional thermal pastes? Where do you get the PTM7950? My PC and the reason why I had the PTM7950, or the actual status of the old thermal paste and pads, and the special feature of the measurement results + conclusion.
Then, the previous configuration with thermal paste and a configuration with the Honeywell PTM7950 on the CPU (Ryzen 7 5800x3D) and GPU (GeForce RTX 4080) are detailed. The result is clear. The full article is available in the forum:
PTM7950 – The slight change in the heat factor in the test
Comments and information are welcome.
Questions, suggestions, as well as praise and criticism of the reader’s article are welcome in the comments on this post and in the corresponding thread. Information on other reading projects or experience reports are also welcome. In this case, the computer basics reader specifically refers to this reader test.
Topics: from the forum community cooling thermal paste

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