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Thermalright Heilos is a family of thermal-interface sheets, including pre-cut formats for Intel and AMD CPUs. Thermalright lists the Intel sheet for LGA115X, LGA1200, and LGA1700; its available specifications do not establish the AMD sheet’s socket compatibility. The manufacturer’s published figures describe product specifications, not proof that Heilos outperforms thermal paste.
What Thermalright announced about Heilos
On July 28, 2023, HotHardware reported Thermalright’s announcement of Heilos as a solid CPU thermal-interface pad pre-cut for Intel or AMD CPUs. The stated idea was to avoid the mess of applying paste. The report also gave Thermalright’s claimed thermal conductivity of 8.5 W/mK. HotHardware’s July 28, 2023 announcement report describes the launch framing, not a controlled performance comparison.
Thermalright’s catalog, accessed October 4, 2026, lists four Heilos formats: Intel and AMD pre-cut sheets and two larger Heilos V2 sheets. A catalog entry confirms that a model is listed; it does not confirm current retailer stock.
Which Heilos format fits your needs?
| Format | Dimensions and thickness | What the available specifications establish |
|---|---|---|
| Heilos Intel pre-cut | 30×40×0.2 mm | Thermalright lists compatibility with Intel LGA115X, LGA1200, and LGA1700. Source: Thermalright Intel specification page, accessed October 4, 2026. |
| Heilos AMD pre-cut | 40×40×0.2 mm | The catalog lists this size, but the available AMD product specification was not checked, so exact socket support is not established. Source: Thermalright catalog, accessed October 4, 2026. |
| Heilos V2 40×50 | 40×50 mm; thickness not stated in the catalog entry | Thermalright lists the format in its catalog. No opened product specification establishes further details here. Source: Thermalright catalog, accessed October 4, 2026. |
| Heilos V2 40×60 | 40×60×0.25 mm | A larger sheet format distinct from the 0.2 mm pre-cut Intel and AMD sheets. Source: Thermalright V2 specification page, accessed October 4, 2026. |
Does Thermalright Heilos fit your CPU?
Intel
Thermalright specifies the 30×40×0.2 mm Intel sheet for LGA115X, LGA1200, and LGA1700. Check your motherboard or CPU documentation for its socket before choosing it; the listed compatibility should not be generalized to every Intel processor or socket.
#1 Best Overall
- 【EXCELLENT THERMAL CONDUCTIVITY】:Upgraded thermal silica gel material with 12.8 W/mK thermal conductivity, Density (G/cc): 3.1±0.2 Hardness (Sc): 30~55; Breakdowm voltage: 9.8KV; Conductivity: None,our thermal pad greatly improve the heat transfer between the electronic elements and effectively cool the temperature down in seconds.
- 【SUPER RELIABLE & DURABLE 】:High temperature performance in -40 ℃ - 200 ℃ will not melt, non-toxic, odorless, anti-corrosion, wear resistant, anti-static, fire retardant, compression, good insulation, contact with any electrical traces wouldn’t result in damage of any sort.
- 【EASY & CONVENIENT TO USE 】:Dimension 85x45x0.5mm, the thermal pads can be cut freely according to your needs, perfect to filled contact surfaces gap, a great assistant for both beginners and professionals.
- 【WIDELY APPLICATION】:Perfectly replaces traditional heatsink compound grease paste, great for PC,Control board, motor, electronics, CPU, GPU, Heat Sink, Power LED,PS4, auto mechanics, computer host, laptop,solid-state drives,Gaming equipment, DVD, VCD, LID, Set-top box, LED IC SMD DIP and any cooling modules.
- 【NO RISK PURCHASE 】:We committed to provide superior thermal pads, easy to install, feel free to contact us if there is any issue with our thermal pads.
AMD
Thermalright’s catalog lists a 40×40×0.2 mm AMD sheet, but the available product information does not name supported sockets. Confirm compatibility against the specific AMD product specification before buying rather than inferring it from the AMD label or sheet dimensions.
When a larger sheet may make sense
The V2 formats are larger sheets rather than the pre-cut Intel and AMD sizes. Thermalright’s opened 40×60 mm V2 specification gives a thickness of 0.25 mm, not 0.2 mm. Choose a format based on the coverage you need and check its product specification; the larger dimensions alone do not establish CPU compatibility.
Rank #2
- 【EXCELLENT THERMAL CONDUCTIVITY】:Upgraded thermal silica gel material with 12.8 W/mK thermal conductivity, Density (G/cc): 3.1±0.2 Hardness (Sc): 30~55; Breakdowm voltage: 9.8KV; Conductivity: None,our thermal pad greatly improve the heat transfer between the electronic elements and effectively cool the temperature down in seconds.
- 【SUPER RELIABLE & DURABLE 】:High temperature performance in -40 ℃ - 200 ℃ will not melt, non-toxic, odorless, anti-corrosion, wear resistant, anti-static, fire retardant, compression, good insulation, contact with any electrical traces wouldn’t result in damage of any sort.
- 【EASY & CONVENIENT TO USE 】:Dimension 85x45x2.5mm, the thermal pads can be cut freely according to your needs, perfect to filled contact surfaces gap, a great assistant for both beginners and professionals.
- 【WIDELY APPLICATION】:Perfectly replaces traditional heatsink compound grease paste, great for PC,Control board, motor, electronics, CPU, GPU, Heat Sink, Power LED,PS4, auto mechanics, computer host, laptop,solid-state drives,Gaming equipment, DVD, VCD, LID, Set-top box, LED IC SMD DIP and any cooling modules.
- 【NO RISK PURCHASE 】:We committed to provide superior thermal pads, easy to install, feel free to contact us if there is any issue with our thermal pads.
What Thermalright’s specifications say—and what they do not
For the Intel sheet, Thermalright lists thermal conductivity of 8.5 W/mK, thermal resistance of 0.04°Ccm²/W, and electrical resistivity of 2.1×10¹⁴ Ω·cm, and labels the sheet non-conductive. For the 40×60 mm V2, Thermalright lists the same conductivity, thermal resistance, and resistivity values and also calls it non-conductive. These are manufacturer-published specifications on pages accessed October 4, 2026, not independent measurements.
A conductivity figure by itself cannot predict CPU temperatures in a particular build. Installed results depend on the full cooling setup and conditions, and the available sources do not provide controlled CPU comparisons between Heilos, thermal paste, or other interface materials. They also do not establish Heilos’s precise material composition, lifespan, or reusability.
Rank #3
- PHASE-CHANGE THERMAL PAD FOR CPU AND GPU – PhaseSheet PTM is made as a clean alternative to classic thermal paste.
- PTM MATERIAL FOR STRONG CONTACT UNDER HEAT – The interface adapts during operation and supports efficient heat transfer.
- SUITABLE FOR CPU, GPU AND CONSOLE APPLICATIONS – Useful for repaste jobs, cooler swaps and maintenance on compatible contact surfaces.
- PRACTICAL 50x40 mm FORMAT FOR FLEXIBLE USE – Can be cut to fit many applications and contact areas.
- ELECTRICALLY NON-CONDUCTIVE FOR SAFER HANDLING – Designed for easy installation and stable thermal performance.
Heilos thermal pad vs. thermal paste
Heilos is presented as an alternative to applying paste: a sheet format that may simplify placement, especially when a pre-cut size matches the intended coverage. Paste remains a separate thermal-interface option. The available announcement and manufacturer specifications do not establish a performance winner, so do not choose Heilos on the assumption that its 8.5 W/mK rating guarantees lower temperatures than a particular paste.
Before purchasing, verify the exact model and socket support on Thermalright’s product page and check a retailer’s current listing for stock and seller details. Thermalright’s catalog listing alone is not confirmation of availability.
Quick Recap
Best Value
- 【EXCELLENT THERMAL CONDUCTIVITY】:Upgraded thermal silica gel material with 12.8 W/mK thermal conductivity, Density (G/cc): 3.1±0.2 Hardness (Sc): 30~55; Breakdowm voltage: 9.8KV; Conductivity: None,our thermal pad greatly improve the heat transfer between the electronic elements and effectively cool the temperature down in seconds.
- 【SUPER RELIABLE & DURABLE 】:High temperature performance in -40 ℃ - 200 ℃ will not melt, non-toxic, odorless, anti-corrosion, wear resistant, anti-static, fire retardant, compression, good insulation, contact with any electrical traces wouldn’t result in damage of any sort.
- 【EASY & CONVENIENT TO USE 】:Dimension 120x20x2mm, the thermal pads can be cut freely according to your needs, perfect to filled contact surfaces gap, a great assistant for both beginners and professionals.
- 【WIDELY APPLICATION】:Perfectly replaces traditional heatsink compound grease paste, great for PC,Control board, motor, electronics, CPU, GPU, Heat Sink, Power LED,PS4, auto mechanics, computer host, laptop,solid-state drives,Gaming equipment, DVD, VCD, LID, Set-top box, LED IC SMD DIP and any cooling modules.
- 【NO RISK PURCHASE 】:We committed to provide superior thermal pads, easy to install, feel free to contact us if there is any issue with our thermal pads.
Rank #4
- 【EXCELLENT THERMAL CONDUCTIVITY】:Upgraded thermal silica gel material with 12.8 W/mK thermal conductivity, Density (G/cc): 3.1±0.2 Hardness (Sc): 30~55; Breakdowm voltage: 9.8KV; Conductivity: None,our thermal pad greatly improve the heat transfer between the electronic elements and effectively cool the temperature down in seconds.
- 【SUPER RELIABLE & DURABLE 】:High temperature performance in -40 ℃ - 200 ℃ will not melt, non-toxic, odorless, anti-corrosion, wear resistant, anti-static, fire retardant, compression, good insulation, contact with any electrical traces wouldn’t result in damage of any sort.
- 【EASY & CONVENIENT TO USE 】:Dimension 120x20x2.5mm, the thermal pads can be cut freely according to your needs, perfect to filled contact surfaces gap, a great assistant for both beginners and professionals.
- 【WIDELY APPLICATION】:Perfectly replaces traditional heatsink compound grease paste, great for PC,Control board, motor, electronics, CPU, GPU, Heat Sink, Power LED,PS4, auto mechanics, computer host, laptop,solid-state drives,Gaming equipment, DVD, VCD, LID, Set-top box, LED IC SMD DIP and any cooling modules.
- 【NO RISK PURCHASE 】:We committed to provide superior thermal pads, easy to install, feel free to contact us if there is any issue with our thermal pads.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
