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Alphacool Apex Thermal Pad Soft 18W/mK vs EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit: Comparison
What Alphacool Apex Thermal Pad Soft 18W/mK and EKWB EK-Quantum Vector³ RTX 5080/90 have in common
The common ground is wider than the gap: electrical conductivity and paste segment are identical here.
Which should you buy, Alphacool Apex Thermal Pad Soft 18W/mK or EKWB EK-Quantum Vector³ RTX 5080/90?
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. It also earns its place with builds needing a documented electrical safety spec sheet (volume resistance, dielectric breakdown) rather than a generic non-conductive claim. It is not the one for buyers who specifically want Eisschicht's softer, more paste-like conforming fit for delicate uneven surfaces. The EKWB EK-Quantum Vector³ RTX 5080/90 is the one to take for EK-Quantum Vector³ RTX 5080/5090 water block rebuilds and maintenance and replacing degraded factory VRAM/VRM pads on EK GPU blocks, though it is not built for Non-EK Vector³ water blocks or other GPU models. Avoid it for CPU thermal interface use (this is a GPU block pad kit, not a paste). 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 EKWB EK-Quantum Vector³ RTX 5080/90 (6.5/10): A genuine replacement kit for EK's specific GPU water blocks, valued for fit rather than headline performance.
Specs and benchmarks
Electrical Conductivity
- Alphacool Apex Thermal Pad Soft 18W/mK
- Insulating
- EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit
- Insulating
Package Size
- Alphacool Apex Thermal Pad Soft 18W/mK
- 120 x 20 x 1.5mm sheet
- EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit
- Kit of 12 pads: 2x 8x16x2mm, 2x 55x16x2mm, 1x 27x16x2mm, 3x 120x12x1mm, 3x 120x6x2mm, 1x 30x15x3mm
Recommended Use
- Alphacool Apex Thermal Pad Soft 18W/mK
- High-end CPU/GPU
- EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit
- High-end CPU/GPU (genuine replacement thermal pad kit for EK-Quantum Vector³ RTX 5080/5090 GPU water blocks, covering VRAM and power-delivery contact points)
Paste Segment
- Alphacool Apex Thermal Pad Soft 18W/mK
- Pad
- EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit
- Pad
Which one should you pick?
Choose Alphacool Apex Thermal Pad Soft 18W/mK if you already have it on hand or find it at a lower price.
Choose EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Alphacool Apex Thermal Pad Soft 18W/mK | EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit |
|---|---|---|
| Alphacool Shop (EU) | View on Alphacool Shop (EU) | |
| EK Webshop | View on EK Webshop |
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.
EKWB EK-Quantum Vector³ RTX 5080/90 Thermal Pad Kit
6.5 / 10 Expert Rating
A genuine replacement kit for EK's specific GPU water blocks, valued for fit rather than headline performance.
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