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3M Thermally Conductive Acrylic Interface Pad 5590H vs Thermalright Extreme Odyssey 85x45mm Pad: Comparison
What is the difference between 3M Thermally Conductive Acrylic Interface and Thermalright Extreme Odyssey 85x45mm Pad?
These two are close on paper, and thermal conductivity is the only measure that separates them at all: 3M Thermally Conductive Acrylic Interface 2.08 W/mK against Thermalright Extreme Odyssey 85x45mm Pad 12.8 W/mK. There is a split on recommended use as well, Battery cooling, power electronics and HMI displays on the 3M Thermally Conductive Acrylic Interface versus Laptop-Thin-GPU, Mainstream CPU/GPU on the Thermalright Extreme Odyssey 85x45mm Pad. There is a split on conductivity source as well, https://multimedia.3m.com/mws/media/920112O/3m-thermally-conductive-acrylic-interface-pad-5590h-technical-data-sheet.pdf on the 3M Thermally Conductive Acrylic Interface versus https://www.thermalright.com/product/odyssey-thermal-pad-2-mm/ on the Thermalright Extreme Odyssey 85x45mm Pad.
Who each one is for
Buy the 3M Thermally Conductive Acrylic Interface for silicone-sensitive assemblies near optics, displays or connectors and power electronics and battery gap filling, though it is not built for high-end GPU memory or VRM cooling. Avoid it for builds where silicone pads are acceptable and higher conductivity is wanted. The Thermalright Extreme Odyssey 85x45mm Pad suits laptop thin-GPU cooling and VRM and small-gap thermal pad replacement, though it is the wrong buy for direct-die or high-pressure CPU/GPU IHS contact needing a paste-thin bondline. Our rating of the 3M Thermally Conductive Acrylic Interface (6.6/10): an industrial acrylic interface pad from an established materials manufacturer, aimed at OEM and repair use rather than enthusiast builds. Our rating of the Thermalright Extreme Odyssey 85x45mm Pad (6.7/10): A pre-sized variant of Thermalright's Odyssey pad line for common GPU and laptop dimensions.
What 3M Thermally Conductive Acrylic Interface and Thermalright Extreme Odyssey 85x45mm Pad have in common
Everything else lines up. Electrical conductivity and paste segment read the same on both, so those are not worth weighing.
Specs and benchmarks
Thermal Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 2.08 W/mK (ASTM D5470)
- Thermalright Extreme Odyssey 85x45mm Pad
- 12.8 W/mKBest
Electrical Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Insulating
- Thermalright Extreme Odyssey 85x45mm Pad
- Insulating
Package Size
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Sheets and die-cut shapes, 0.5/1.0/1.2/1.5/2.0mm thick
- Thermalright Extreme Odyssey 85x45mm Pad
- 85 x 45 x 1.5mm pad
Recommended Use
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Battery cooling, power electronics and HMI displays (general electronics gap filling)
- Thermalright Extreme Odyssey 85x45mm Pad
- Laptop-Thin-GPU, Mainstream CPU/GPU
Safety Notes
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Non-conductive acrylic pad; no special handling precautions required
- Thermalright Extreme Odyssey 85x45mm Pad
- High temperature resistant, non-conductive
Conductivity Source
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- https://multimedia.3m.com/mws/media/920112O/3m-thermally-conductive-acrylic-interface-pad-5590h-technical-data-sheet.pdf
- Thermalright Extreme Odyssey 85x45mm Pad
- https://www.thermalright.com/product/odyssey-thermal-pad-2-mm/
Paste Segment
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Pad
- Thermalright Extreme Odyssey 85x45mm Pad
- Pad
Which one should you pick?
Choose 3M Thermally Conductive Acrylic Interface Pad 5590H if you already have it on hand or find it at a lower price.
Choose Thermalright Extreme Odyssey 85x45mm Pad if you want the higher thermal conductivity (12.8 W/mK vs 2.08 W/mK (ASTM D5470)).
Price comparison
| Retailer | 3M Thermally Conductive Acrylic Interface Pad 5590H | Thermalright Extreme Odyssey 85x45mm Pad |
|---|---|---|
| Amazon | View on Amazon | |
| Newark | View on Newark |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
3M Thermally Conductive Acrylic Interface Pad 5590H
6.6 / 10 Expert Rating
An industrial acrylic interface pad from an established materials manufacturer, aimed at OEM and repair use rather than enthusiast builds.
Thermalright Extreme Odyssey 85x45mm Pad
6.7 / 10 Expert Rating
A pre-sized variant of Thermalright's Odyssey pad line for common GPU and laptop dimensions.




