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Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste vs Deepcool G40: Comparison
What is the difference between Alphacool Eisfrost Xtreme Liquid Metal and Deepcool G40?
Electrical conductivity is the dividing line, Alphacool Eisfrost Xtreme Liquid Metal Conductive against Deepcool G40 Insulating. They differ on material class too, Gallium Alloy on the Alphacool Eisfrost Xtreme Liquid Metal versus Silicone-Based on the Deepcool G40. Recommended use is not the same on both, High-end CPU/GPU, including overclocking; also suited to Delidded-Direct-Die use... on the Alphacool Eisfrost Xtreme Liquid Metal versus High-end CPU/GPU on the Deepcool G40. There is a split on density as well, 6.44 g/cm3 on the Alphacool Eisfrost Xtreme Liquid Metal versus 2.6 g/cm3 on the Deepcool G40. They differ on paste segment too, Liquid Metal on the Alphacool Eisfrost Xtreme Liquid Metal versus Standard Paste on the Deepcool G40. The operating temperature figures are near enough to ignore, Melting point -19.3°C; liquid at all normal operating and... on the Alphacool Eisfrost Xtreme Liquid Metal versus -50°C to +240°C on the Deepcool G40.
Which should you buy, Alphacool Eisfrost Xtreme Liquid Metal or Deepcool G40?
Take the Alphacool Eisfrost Xtreme Liquid Metal for experienced overclockers with copper or nickel-plated-copper cooler bases wanting maximum conductivity. The same goes for delidded, direct-die CPU/GPU setups where liquid metal is the established choice. It is not the one for aluminum coolers or any aluminum contact surface, which liquid metal will corrode. The Deepcool G40 suits multiple installs, dual-GPU setups, or repeat reapplications from one tube and overclockers who want the G-series conductivity in a larger package, though it is not the pick for buyers who need DS7/DS9-tier top-end conductivity. Avoid it for single-install buyers who don't need 4g of paste (G15's 1.5g is cheaper and sufficient). Our rating of the Alphacool Eisfrost Xtreme Liquid Metal (7.8/10): A gallium-alloy liquid metal aimed at high-end builds, bundled with application swabs to ease the learning curve. Our rating of the Deepcool G40 (5.8/10): an overclocking-focused entry paste from Deepcool, adequate but unremarkable.
Specs and benchmarks
Electrical Conductivity
- Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
- Conductive
- Deepcool G40
- Insulating
Material Class
- Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
- Gallium Alloy
- Deepcool G40
- Silicone-Based (Deepcool describes it as an "organosilicon material" using nanotechnology)
Package Size
- Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
- 1g syringe, includes 2 cotton application swabs and a cleaning wipe
- Deepcool G40
- 4 g grease weight (16 g net weight incl. syringe)
Recommended Use
- Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
- High-end CPU/GPU, including overclocking; also suited to Delidded-Direct-Die use per manufacturer application guidance
- Deepcool G40
- High-end CPU/GPU (marketed for the overclocking community and extreme gamers)
Density
- Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
- 6.44 g/cm3
- Deepcool G40
- 2.6 g/cm3
Paste Segment
- Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
- Liquid Metal
- Deepcool G40
- Standard Paste
Operating Temperature
- Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
- Melting point -19.3°C; liquid at all normal operating and room temperatures
- Deepcool G40
- -50°C to +240°CBest
Which one should you pick?
Choose Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste if you already have it on hand or find it at a lower price.
Choose Deepcool G40 if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste | Deepcool G40 |
|---|---|---|
| Alphacool Shop (EU) | View on Alphacool Shop (EU) |
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
Alphacool Eisfrost Xtreme Liquid Metal Thermal Paste
7.8 / 10 Expert Rating
A gallium-alloy liquid metal aimed at high-end builds, bundled with application swabs to ease the learning curve.
Deepcool G40
5.8 / 10 Expert Rating
An overclocking-focused entry paste from Deepcool, adequate but unremarkable.