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Alphacool Apex Thermal Pad Soft 18W/mK vs JunPus JP-DX1: Comparison
Alphacool Apex Thermal Pad Soft 18W/mK vs JunPus JP-DX1: the thermal conductivity difference
Expect a near tie. The closest thing to a difference is thermal conductivity, Alphacool Apex Thermal Pad Soft 18W/mK 17.8 W/mK against JunPus JP-DX1 16 W/mK max. They differ on density too, 3.5 g/cm3 on the Alphacool Apex Thermal Pad Soft 18W/mK versus 2.7 g/cm3 on the JunPus JP-DX1. There is a split on paste segment as well, Pad on the Alphacool Apex Thermal Pad Soft 18W/mK versus Standard Paste on the JunPus JP-DX1.
Who each one is for
Take the Alphacool Apex Thermal Pad Soft 18W/mK for high-end CPU/GPU, VRM/MOSFET, and memory-module cooling wanting the highest independently-measured W/mK figure among this catalog's pads. The same goes for builds needing a documented electrical safety spec sheet (volume resistance, dielectric breakdown) rather than a generic non-conductive claim. Avoid it for buyers who specifically want Eisschicht's softer, more paste-like conforming fit for delicate uneven surfaces. The JunPus JP-DX1 suits experienced builders who want a diamond-filled paste and CPU repastes with high mounting pressure, though it is not the pick for first-time builders who want an easy spread and buyers who need a published operating temperature range. Our rating of the Alphacool Apex Thermal Pad Soft 18W/mK (6.8/10): A soft, high-conductivity pad aimed at high-end builds, though it lacks the independent review base of the paste side of Alphacool's lineup. Our rating of the JunPus JP-DX1 (6.5/10): JunPus's original nano-diamond overclocking grease, also sold in bulk for system builders, with the same limited independent review coverage as its successor.
Frequently asked questions
Do the Alphacool Apex Thermal Pad Soft 18W/mK and JunPus JP-DX1 differ on viscosity?
Yes. Viscosity reads 0 Pa-s on the Alphacool Apex Thermal Pad Soft 18W/mK versus Viscosity 3,000,000 mPa.s , per JunPus; very stiff grey... on the JunPus JP-DX1.
Is the Electrical Conductivity the same on the Alphacool Apex Thermal Pad Soft 18W/mK and JunPus JP-DX1?
It is. Both are listed at Insulating, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- Alphacool Apex Thermal Pad Soft 18W/mK
- Alphacool
- JunPus JP-DX1
- JunPus
Model
- Alphacool Apex Thermal Pad Soft 18W/mK
- Alphacool Apex Thermal Pad Soft 18W/mK
- JunPus JP-DX1
- JP-DX1
Thermal Conductivity
- Alphacool Apex Thermal Pad Soft 18W/mK
- 17.8 W/mK (ASTM D5470)Best
- JunPus JP-DX1
- 16 W/mK max
Electrical Conductivity
- Alphacool Apex Thermal Pad Soft 18W/mK
- Insulating
- JunPus JP-DX1
- Insulating
Material Class
- Alphacool Apex Thermal Pad Soft 18W/mK
- Silicone, ultra-soft with high compressibility
- JunPus JP-DX1
- Nanodiamond powder and silicone compound
Package Size
- Alphacool Apex Thermal Pad Soft 18W/mK
- 120 x 20 x 1.5mm sheet
- JunPus JP-DX1
- 1g, 20g, 30g or 50g
Recommended Use
- Alphacool Apex Thermal Pad Soft 18W/mK
- High-end CPU/GPU
- JunPus JP-DX1
- High-end CPU/GPU
Conductivity Source
- Alphacool Apex Thermal Pad Soft 18W/mK
- https://shop.alphacool.com/en/shop/thermal-conductant/thermal-pads/waem-alphacool-apex-thermal-pad-soft-18w/mk-120x20x1mm
- JunPus JP-DX1
- https://www.thermal-paste.com/products/nano-diamond-thermal-paste/jp-dx1.html
Viscosity
- Alphacool Apex Thermal Pad Soft 18W/mK
- 0 Pa-s
- JunPus JP-DX1
- Viscosity 3,000,000 mPa.s (3,000 Pa-s), per JunPus; very stiff grey grease
Density
- Alphacool Apex Thermal Pad Soft 18W/mK
- 3.5 g/cm3
- JunPus JP-DX1
- 2.7 g/cm3
Paste Segment
- Alphacool Apex Thermal Pad Soft 18W/mK
- Pad
- JunPus JP-DX1
- Standard Paste
Which one should you pick?
Choose Alphacool Apex Thermal Pad Soft 18W/mK if you want the higher thermal conductivity (17.8 W/mK (ASTM D5470) vs 16 W/mK max).
Choose JunPus JP-DX1 if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Alphacool Apex Thermal Pad Soft 18W/mK | JunPus JP-DX1 |
|---|---|---|
| Alphacool Shop (EU) | View on Alphacool Shop (EU) | |
| Amazon | View on Amazon | |
| Newegg | View on Newegg |
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 Apex Thermal Pad Soft 18W/mK
6.8 / 10 Expert Rating
A soft, high-conductivity pad aimed at high-end builds, though it lacks the independent review base of the paste side of Alphacool's lineup.
JunPus JP-DX1
6.5 / 10 Expert Rating
JunPus's original nano-diamond overclocking grease, also sold in bulk for system builders, with the same limited independent review coverage as its successor.
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