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Best Thermal Paste for Laptop and Desktop 2026

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When to Replace Thermal Paste

Desktop PC with cooling fans and components
Desktop PC with cooling fans and components

Thermal paste degrades over 3-5 years. Replacing it can lower CPU temperatures by 5-15°C, reducing thermal throttling and extending component life. Signs you need new paste: higher-than-normal temperatures, increased fan noise, or thermal throttling during light workloads.

Top Thermal Paste Picks

Best overall: Noctua NT-H2 — excellent performance, easy application, non-conductive. Premium: Thermal Grizzly Kryonaut — top benchmark performer, favourite of overclockers. Budget: Arctic MX-6 — 90% of premium performance at half the price.

PasteBest ForBuy
Noctua NT-H2General use, easy applyCheck Price
Thermal Grizzly KryonautOverclocking, enthusiastCheck Price

Frequently Asked Questions

How often should I replace thermal paste?

Every 3-5 years, or sooner if temperatures have increased noticeably.

Recommended upgrades

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For desktops that use DDR5 DIMMs

Crucial 16GB DDR5-5600 desktop DIMM
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Lexar 16GB DDR5-5600 desktop DIMM
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For desktops that use DDR4 DIMMs

Crucial 16GB DDR4-3200 desktop DIMM
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Crucial 16GB kit (2x8GB) DDR4-3200 desktop DIMM
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M.2 2280 NVMe SSDs

Crucial P310 1TB M.2 2280 NVMe (PCIe Gen4)
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Crucial P310 2TB M.2 2280 NVMe (PCIe Gen4)
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How we verify this guide

We cross-reference compatibility figures against manufacturer specifications where available, official service manuals, and the standards that govern fit — memory type and speed (DDR4 / DDR5 / LPDDR5), maximum supported capacity and slot count, SSD form factor and interface (M.2 2280, NVMe PCIe vs SATA, keying), and charger wattage and connector (USB-C Power Delivery, GaN). We’re explicit about soldered or non-upgradeable parts, prioritise primary sources over retailer listings, and re-verify the data on a regular cycle. More on our method →

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