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Akasa AK-450 Silver Compound 450 vs EKWB EK Thermal PAD F 1.5mm: Comparison
Akasa AK-450 Silver Compound 450 vs EKWB EK Thermal PAD F 1.5mm: the thermal conductivity difference
Thermal conductivity is where these two genuinely part company, Akasa AK-450 Silver Compound 450 9.24 W/mK against EKWB EK Thermal PAD F 1.5mm 3.5 W/mK, a 62% lead for Akasa AK-450 Silver Compound 450. They differ on paste segment too, Standard Paste on the Akasa AK-450 Silver Compound 450 versus Pad on the EKWB EK Thermal PAD F 1.5mm.
Who each one is for
The Akasa AK-450 Silver Compound 450 is the one to take for mainstream CPU repastes under air or AIO coolers and Akasa AK-455 owners wanting a higher-rated Akasa compound, though it is the wrong buy for sub-zero or chiller cooling, since Akasa rates it from 0C and buyers who need published electrical safety data. Buy the EKWB EK Thermal PAD F 1.5mm for DIY water block rebuilds needing a 1.5mm gap-filler pad, though it is not the pick for CPU/GPU direct-die paste application. It is equally the pick for replacing worn factory thermal pads on EK full-cover water blocks with a 120x16mm contact strip. Avoid it for builds needing a higher-conductivity performance paste rather than a gap-filler pad. Our rating of the Akasa AK-450 Silver Compound 450 (6/10): A silver-based compound with a solid published conductivity figure and a bundled spreader, reasonable for the price. Our rating of the EKWB EK Thermal PAD F 1.5mm (6.4/10): A reusable replacement pad sized for EK water blocks, a practical maintenance item rather than a performance pick.
Frequently asked questions
Do the Akasa AK-450 Silver Compound 450 and EKWB EK Thermal PAD F 1.5mm differ on material class?
Yes. Material Class reads Silver-based thermal compound on the Akasa AK-450 Silver Compound 450 versus Aluminum Oxide , 85-95% main ingredient on the EKWB EK Thermal PAD F 1.5mm.
Is the Max Operating Temperature the same on the Akasa AK-450 Silver Compound 450 and EKWB EK Thermal PAD F 1.5mm?
It is. Both are listed at 200 C, so it is not a reason to pick one over the other.
Specs and benchmarks
Thermal Conductivity
- Akasa AK-450 Silver Compound 450
- 9.24 W/mKBest
- EKWB EK Thermal PAD F 1.5mm
- 3.5 W/mK-62%
Material Class
- Akasa AK-450 Silver Compound 450
- Silver-based thermal compound
- EKWB EK Thermal PAD F 1.5mm
- Aluminum Oxide (Al2O3), 85-95% main ingredient
Package Size
- Akasa AK-450 Silver Compound 450
- 5g syringe
- EKWB EK Thermal PAD F 1.5mm
- Type F, 120 x 16 x 1.5mm
Recommended Use
- Akasa AK-450 Silver Compound 450
- Mainstream CPU/GPU (formulated for CPU/heatsink interfaces)
- EKWB EK Thermal PAD F 1.5mm
- High-end CPU/GPU (replacement pad for EK full-cover water blocks)
Conductivity Source
- Akasa AK-450 Silver Compound 450
- https://www.akasa.co.uk/update.php?tpl=product/product.detail.tpl&model=AK-450-5G
- EKWB EK Thermal PAD F 1.5mm
- https://www.ekwb.com/shop/thermal-pad-f-1-5mm-120x16mm
Min Operating Temperature
- Akasa AK-450 Silver Compound 450
- 0 C
- EKWB EK Thermal PAD F 1.5mm
- -55 CBest
Max Operating Temperature
- Akasa AK-450 Silver Compound 450
- 200 C
- EKWB EK Thermal PAD F 1.5mm
- 200 C
Paste Segment
- Akasa AK-450 Silver Compound 450
- Standard Paste
- EKWB EK Thermal PAD F 1.5mm
- Pad
Operating Temperature
- Akasa AK-450 Silver Compound 450
- 0°C to 200°C
- EKWB EK Thermal PAD F 1.5mm
- -55C to +200CBest
Which one should you pick?
Choose Akasa AK-450 Silver Compound 450 if you want the higher thermal conductivity (9.24 W/mK vs 3.5 W/mK).
Choose EKWB EK Thermal PAD F 1.5mm if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Akasa AK-450 Silver Compound 450 | EKWB EK Thermal PAD F 1.5mm |
|---|---|---|
| Akasa | View on Akasa | |
| Amazon UK | View on Amazon UK | |
| Titan Rig | View on Titan Rig |
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
Akasa AK-450 Silver Compound 450
6 / 10 Expert Rating
A silver-based compound with a solid published conductivity figure and a bundled spreader, reasonable for the price.
EKWB EK Thermal PAD F 1.5mm
6.4 / 10 Expert Rating
A reusable replacement pad sized for EK water blocks, a practical maintenance item rather than a performance pick.




