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Akasa AK-450 Silver Compound 450 vs Deepcool G40: Comparison
Akasa AK-450 Silver Compound 450 vs Deepcool G40: the thermal conductivity difference
On thermal conductivity the spread is 44%, Akasa AK-450 Silver Compound 450 9.24 W/mK against Deepcool G40 5.2 W/mK, so Akasa AK-450 Silver Compound 450 takes it. There is a split on recommended use as well, Mainstream CPU/GPU on the Akasa AK-450 Silver Compound 450 versus High-end CPU/GPU on the Deepcool G40. There is a split on conductivity source as well, https://www.akasa.co.uk/update.php?tpl=product/product.detail.tpl&model=AK-450-5G on the Akasa AK-450 Silver Compound 450 versus https://www.deepcool.com/products/Accessories/ThermalPaste/2021/11408.shtml on the Deepcool G40.
Who each one is for
Buy the Akasa AK-450 Silver Compound 450 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. The Deepcool G40 is the one to take for 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 built for buyers who need DS7/DS9-tier top-end conductivity. It is the wrong buy for single-install buyers who don't need 4g of paste (G15's 1.5g is cheaper and sufficient). 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 Deepcool G40 (5.8/10): an overclocking-focused entry paste from Deepcool, adequate but unremarkable.
Frequently asked questions
Do the Akasa AK-450 Silver Compound 450 and Deepcool G40 differ on max operating temperature?
Yes. Max Operating Temperature reads 200 C on the Akasa AK-450 Silver Compound 450 versus 240 C on the Deepcool G40.
Is the Paste Segment the same on the Akasa AK-450 Silver Compound 450 and Deepcool G40?
It is. Both are listed at Standard Paste, 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
- Deepcool G40
- 5.2 W/mK-44%
Material Class
- Akasa AK-450 Silver Compound 450
- Silver-based thermal compound
- Deepcool G40
- Silicone-Based (Deepcool describes it as an "organosilicon material" using nanotechnology)
Package Size
- Akasa AK-450 Silver Compound 450
- 5g syringe
- Deepcool G40
- 4 g grease weight (16 g net weight incl. syringe)
Recommended Use
- Akasa AK-450 Silver Compound 450
- Mainstream CPU/GPU (formulated for CPU/heatsink interfaces)
- Deepcool G40
- High-end CPU/GPU (marketed for the overclocking community and extreme gamers)
Conductivity Source
- Akasa AK-450 Silver Compound 450
- https://www.akasa.co.uk/update.php?tpl=product/product.detail.tpl&model=AK-450-5G
- Deepcool G40
- https://www.deepcool.com/products/Accessories/ThermalPaste/2021/11408.shtml
Min Operating Temperature
- Akasa AK-450 Silver Compound 450
- 0 C
- Deepcool G40
- -50 CBest
Max Operating Temperature
- Akasa AK-450 Silver Compound 450
- 200 CBest
- Deepcool G40
- 240 C
Paste Segment
- Akasa AK-450 Silver Compound 450
- Standard Paste
- Deepcool G40
- Standard Paste
Operating Temperature
- Akasa AK-450 Silver Compound 450
- 0°C to 200°C
- Deepcool G40
- -50°C to +240°CBest
Which one should you pick?
Choose Akasa AK-450 Silver Compound 450 if you want the higher thermal conductivity (9.24 W/mK vs 5.2 W/mK).
Choose Deepcool G40 if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Akasa AK-450 Silver Compound 450 | Deepcool G40 |
|---|---|---|
| Akasa | View on Akasa | |
| Amazon UK | View on Amazon UK |
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.
Deepcool G40
5.8 / 10 Expert Rating
An overclocking-focused entry paste from Deepcool, adequate but unremarkable.




