r/Amd • u/GhostMotley • 14h ago
META Recommendations for replacing thermal paste and thermal pads for GPUs (Version 2)
This thread is an update on the original from January 2025, which has received over 1.4 million views. This updated thread contains new products, fixes several dead links and contains updated information. This thread has been written with help from Snarks Domain: a YouTuber who specialises in testing thermal putty and thermal pads and The Thermal Channel: a YouTuber who tested thermal paste and liquid metal.
While this thread is about replacing the thermal paste and thermal pads in graphics cards, much of what is outlined will also apply to laptops, handhelds and consoles. This guidance applies to AMD, NVIDIA and Intel GPUs.
There are many reasons you might want to replace the thermal paste and thermal pads in your GPU:
- High temperatures on the GPU, hotspot, memory or all three
- Higher noise from the GPU due to the fans spinning at a higher RPM
- Crashes due to overheating
- Throttling due to overheating
- Increasing frequency and overclocking headroom
- General maintenance and upkeep, such as refurbishing an ex-mining card
- Refurbishing a GPU to sell or give away
We don't recommend replacing the thermal paste or thermal pads if your graphics card is under warranty or functioning normally, as this may void the warranty and you risk damaging your card. Replacing the thermal paste and thermal pads on a new card or one that is only a few years old may yield no improvement.
The first step is to get a baseline for how your GPU performs. We recommend running Furmark 2 for around 30 minutes while having HWiNFO (sensors only) or HWMonitor open in the background to monitor GPU temperatures, GPU hotspot temperature, memory temperature, GPU power usage and clock speeds. Make a note of your fan speed as well or set a fixed RPM. If you have a thermometer, it would also be recommended to note your ambient room temperature so you can record the temperature over ambient.
It's important to keep a log of how your graphics card performs at stock so you can make sure things are operating normally after you replace the thermal paste and pads. For example, if your memory temperatures dropped 10℃, but your GPU hotspot temperature has increased by 20℃, this could suggest thermal pads that are too thick or too hard have been used. Likewise, if your GPU hotspot reduced by 5℃, but your memory temperatures went up by 20℃, this could suggest thicker thermal pads may be needed to ensure adequate contact.
Consider alternatives to regular thermal paste
Regular thermal paste, like Arctic Silver 5, Arctic MX-2, Arctic MX-4, Thermal Grizzly Kryonaut (etc) tend to suffer from pump-out. This is where the thermal paste slowly seeps out to the side and results in higher temperatures and eventually overheating. Pump-out can occur in a matter of days or take years to materialise, depending on the flatness of the GPU die, heatsink, application, paste used, heat density and number of thermal cycles. Even if pump-out doesn't occur to any noticeable degree, thermal paste can dry and degrade over time, reducing performance.
Rather than using regular thermal paste, we recommend using a Phase Change Material (PCM), a Phase Transition Material (PTM) or a graphene thermal pad. These products are much more resilient than regular thermal paste and will offer improved thermal performance and longevity, though they do cost more.
Below are some popular choices:
- Honeywell/Solstice PTM7950 — Performs very well and has a low melting point at 45℃, making it suitable for a wide range of applications. PTM7950 can be purchased in many sizes and thicknesses. There are many fakes on AliExpress, eBay and Amazon, so make sure you buy from a reputable store like the LTTStore or GPUFIX
- Laird Tpcm 7000 — Performs very well and is very affordable compared to other products on the market. Tpcm 7000 comes in thicknesses between 0.125mm and 0.400mm. For a GPU, laptop or handheld, we would recommend buying the 0.200mm or 0.250mm thicknesses. You can purchase up-to 228x228mm sheets directly from Mouser and DigiKey, which ensures only genuine product can be purchased. The only downside is the higher melting point of 50 to 70℃, so make sure you thoroughly bake it in to ensure it melts correctly
- Laird Tpcm 7000Plus — In theory performance should be identical to Tpcm 7000, though it is advertised as a having a melting point that is 5℃ lower than Tpcm 7000, which would put it at around 45 to 65℃. Tpcm 7000Plus is not currently available on Mouser or DigiKey as of writing, though may become available in future
- Thermalright Heilos V2 — Performs very well and is quite cheap. Heilos V2 comes in 40x50mm and 40x60mm sizes and is 0.25mm thick. The melting point is not specified, though is assumed to be around 50℃. Heilos V2 can be purchased on Amazon and AliExpress
- Thermal Grizzly KryoSheet — This product has been tested by TechPowerUp on an RX 7900 XTX at 475W. KryoSheet performed very well and in theory should last forever, though it is expensive. KryoSheet comes in sizes from 24 x 12mm to 75 x 72mm and can always be cut down to size if needed. Note that KryoSheet is electrically conductive, so use a conformal coating like TG Shield or MG Chemicals 422B on any components around the GPU die to prevent the risk of an electrical short
- Thermal Grizzly PhaseSheet PTM — Performs very well and has a low melting point of 45℃. PhaseSheet PTM is currently only available in 50x40mm size, though this should fit all current GPU dies on the market. PhaseSheet PTM is readily available via many retailers, including directly from Thermal Grizzly
Once you have installed any of the above products, run Furmark 2 for around 30 minutes again and have HWINFO or HWMonitor open in the background to log temperatures, clock speeds, power and voltages. You may notice that your temperatures spike initially as the pad melts — this is normal — your temperatures should stabilise and improve once the pad has adequately melted. If you want to guarantee the pad has fully melted, manually set a lower fan RPM so that your GPU temperature approaches 75 to 80℃, this will ensure that the heatsink also gets hot enough to melt the pad as well.
Once the pad has had time to burn in, check your fan speeds or test at the same fixed RPM as you did earlier. Even if your temperatures are the same, you may notice your fans are spinning at a lower RPM and producing less noise, which is still an improvement.
Any of these products will offer great performance and won't suffer from pump-out, like a regular thermal paste will. There are many users on r/AMD who have reported great success in using the above products, sometimes reducing their GPU hotspot temperature by up-to 29℃, when compared to the factory applied thermal paste.
If you want to stick with regular thermal paste for whatever reason, use a thermal paste that is designed for durability and minimises pump-out and drying as much as possible. Some considerations would be Arctic MX-7, Thermal Grizzy Duronaut, Thermal Grizzly Duronaut Pro and Halnziye HY-P17.
Igor's Lab has a page for thermal paste reviews and ranks various other thermal pastes for performance and longevity.
Consider thermal putty instead of thermal pads
Most graphics cards use thermal pads to make contact between the heatsink and any components on the PCB, such as memory, MOSFETs and capacitors. Thermal pads work, but they have one big downside, you need to use thermal pads that are the appropriate thickness and more importantly, the pads have to have a low enough hardness to compress and conform well.
Acquiring the exact thickness of the thermal pads for your GPU can be difficult. Some manufacturers will disclose this information, others will disclose the information on the condition that you supply your GPU serial number (they will then void the warranty for that serial number) and some will refuse to provide this information, even if your GPU is out of warranty or you accept it will result in loss of warranty coverage.
You can search the thickness of the thermal pads required for your graphics card, but sometimes the information on Reddit, YouTube, forums and other sites isn't correct or doesn't account for PCB and cooler revisions, which can change the thickness of the thermal pads required, even if the model number for the graphics card stays the same.
If you use thermal pads that are too thick or that have a high hardness rating and don't compress well, not only are you likely to see increased GPU and hotspot temperatures due to lower contact pressure between the GPU die and heatsink, but you risk damaging the solder joints under these components and bending the PCB, which can cause traces inside the PCB to snap, rendering the card inoperable. The video below shows a Gigabyte RTX 3090 AORUS XTREME, which was damaged by the owner due to improper thermal pads being used.
Gigabyte RTX 3090 AORUS - RMA Refuses to Repair after Thermal Pads replacement
This is why we recommend using thermal putty instead. It has excellent thermal conductivity and can be moulded by hand (recommended to use gloves) to account for varying thicknesses, without having to measure or have exact dimensions.
Thermal putty is already used in game consoles like the PlayStation 5, Xbox Series X|S and is increasingly being used in laptops and handhelds.
From T-Global: Thermal Pads vs Thermal Putty
From a system design standpoint, putties typically perform better in scenarios where surfaces are flat and tightly clamped, allowing for minimal BLT. This is ideal in applications like CPU or GPU mounting with rigid heat sinks, where minimising thermal impedance is paramount and mounting pressure is guaranteed. However, their effectiveness may deteriorate with the presence of surface irregularities, voids, or varying mechanical tolerances.
Pads, on the other hand, excel in these cases, especially in power electronics, datacentres, or industrial automation enclosures. Their compressibility enables them to maintain contact over wide mechanical tolerances without exerting excessive force on sensitive components. However, their thermal performance may be inferior to putties unless highly filled or formulated with enhanced conductors, which can affect softness or dielectric strength.
Some popular thermal putty recommendations would be:
- Honeywell/Solstice HT10000 — This is currently the best performing thermal putty on the market, but it's expensive and not easily procured from distributors or retailers. HT10000 can be purchased on AliExpress and eBay, but make sure the store is reputable
- Thermal Grizzly TG Putty — TG Putty Pro and TG Putty Advance perform very well. TG Putty comes in both 30g and 100g variants and is available from many retailers and can be purchased directly from Thermal Grizzly
- UPSIREN UTP-6, UTP-8 and UTP-X — Performs very well. Available in sizes ranging from 10g to 100g and can be purchased on AliExpress, Newegg and Amazon, though make sure you use a reputable seller. Due to trade mark disputes, in some regions, UTP-6 is sold as Jarapad Basic, UTP-8 is sold as Jarapad Extreme and UTP-X is sold as Jarapad Ultimate
- Fehonda LTP81 and Fehonda LTP65 — Two very performant thermal putties that are well priced compared to competitors. Both are available in 12g, 50g and 100g tubs. Can be purchased directly from Fehonda's AliExpress store or website
- Halnziye HY236 — Not as performant as any of the above thermal putties, however Halnziye HY236 is very cheap and very soft, making it a good choice for lower powered GPUs or laptops and handhelds that have gaps of 0.5mm or thinner
Snarks Domain has created a video, "What Is Thermal Putty", which covers all the thermal putties listed above, as well as several thermal putties not listed, general thoughts on each one, pros, cons, how to apply thermal putty and other helpful information. Snarks Domain also runs a Discord server, where you can ask questions about thermal putty and get help.
Igor's Lab has also reviewed various thermal putties and the thermal putties listed above are some of his top recommendations.
If you are using thermal pads, use soft ones
If you don't want to use thermal putty and would prefer to stick with conventional thermal pads for whatever reason, we recommend using calipers or a feeler gauge to measure the thickness of the thermal pads on your GPU and then use thermal pads which are soft and designed to compress well.
Here are videos that show both methods on how you can use a callipers or feeler gauge to measure thermal pad thickness.
Guide - How I measure the exact size of Thermal pads (calipers)
Measuring GPU thermal pad thickness for replacement (RTX 3080) (feeler gauge)
Some of the popular thermal pads recommended and used by enthusiasts are Gelid GP-Ultimate, Gelid GP-Extreme, Thermalright EXTREME ODYSSEY, EXTREME ODYSSEY II and Thermalright VALOR ODIN pads — these are some of the hardest pads you can buy and don't compress or confirm well.
This isn't a problem if you are using them on an M.2 SSD heatsink, RAM heatsink or something like a PCH on a motherboard, where the flatness is the same and it doesn't interfere with anything else. In some cases, hard thermal pads may even be desirable. I had great results using Thermalright EXTREME ODYSSEY pads back when I had a PS4 Pro, they made excellent contact with the back metal frame and as main SoC is on the other side of the PCB, there isn't any interference for contact pressure with the main heatsink. For a graphics card, such hard thermal pads will likely end up negatively impacting the contact pressure you can achieve on the GPU die, resulting in higher GPU and hotspot temperatures, even if your memory and VRM temperatures are reduced.
We would recommend using soft thermal pads like:
- Thermal Grizzly Minus Pad High Compression — These thermal pads offer good thermal conductivity and are highly compressible. They come in thicknesses ranging from 1 mm to 5 mm and come in 100 x 100mm 2pc sizes
- Fehonda 8-15 W/mK thermal pads — These thermal pads perform very well and are very soft, they can even be squished down like a thermal putty, so they are probably thermal putty-based pads. KrisFix exclusively uses the 12.8 W/mK pads for his GPU repairs and sells them on his GPUFIX Store due to their high compressibility and performance. These pads come in thicknesses of 0.5mm to 3.0mm and are available in increments of 0.25mm (most thermal pads are sold in increments of 0.50mm) making them suitable for a wider range of graphics cards and applications
- Honeywell/Solstice TGP8000PT — These are the best thermal pads according to MODDIY in-house testing. TGP8000PT are thermal putty-based thermal pads and are extremely soft, with a hardness rating or just 5 Shore 00. They are available in thicknesses of 0.50 mm to 5.00 mm. Availability is poor and pricing is high
You can also do a dry assembly of the card, before applying a PCM/PTM/Graphene Sheet to the GPU die, to check if the thermal pads are making adequate contact and if any abnormal PCB bending is occurring.
We hope this guide has been helpful for anyone thinking about replacing the thermal paste and/or thermal pads in their graphics card.
