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Alphacool Subzero vs Fujipoly SARCON GR-Pm Silicone Putty Sheet: Comparison
Alphacool Subzero vs Fujipoly SARCON GR-Pm Silicone Putty Sheet: the thermal conductivity difference
These two are close on paper, and thermal conductivity is the only measure that separates them at all: Alphacool Subzero 16 W/mK against Fujipoly SARCON GR-Pm Silicone Putty Sheet 4.5 W/mK. They differ on reapplication interval too, Verify manufacturer-rated interval on the Alphacool Subzero versus Reusable, non-curing putty sheet; no scheduled reapplication on the Fujipoly SARCON GR-Pm Silicone Putty Sheet. Conductivity source is not the same on both, https://shop.alphacool.com/en/shop/thermal-conductant/thermal-compound/13009-alphacool-subzero-thermal-grease-20g on the Alphacool Subzero versus https://www.fujipoly.eu/sarcon-products/sarcon-gr-pm on the Fujipoly SARCON GR-Pm Silicone Putty Sheet. They differ on paste segment too, Standard Paste on the Alphacool Subzero versus Pad on the Fujipoly SARCON GR-Pm Silicone Putty Sheet.
Who each one is for
Take the Alphacool Subzero for high-end CPU and GPU builds, including overclocking, wanting the highest non-liquid-metal conductivity available. The same goes for builders who want liquid metal-adjacent performance without the electrical conductivity risk. It is the wrong buy for budget builds where Arctic MX-4 or MX-6 deliver adequate performance for less. Buy the Fujipoly SARCON GR-Pm Silicone Putty Sheet for uneven-height component gap filling and VRM and memory cooling, though it is not built for precision flat CPU/GPU die contact requiring maximum W/mK. Our rating of the Alphacool Subzero (6.6/10): A high-performance silicone-based compound from Alphacool with a strong published conductivity figure. Our rating of the Fujipoly SARCON GR-Pm Silicone Putty Sheet (6.7/10): A conformal silicone putty sheet suited to irregular gaps, from an established industrial thermal brand.
Frequently asked questions
Do the Alphacool Subzero and Fujipoly SARCON GR-Pm Silicone Putty Sheet differ on compound type?
Yes. Compound Type reads High-Performance Silicone-Based on the Alphacool Subzero versus Silicone-Based Pad on the Fujipoly SARCON GR-Pm Silicone Putty Sheet.
Specs and benchmarks
Brand
- Alphacool Subzero
- Alphacool
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Fujipoly
Compound Type
- Alphacool Subzero
- High-Performance Silicone-Based
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Silicone-Based Pad
Model
- Alphacool Subzero
- Alphacool Subzero , Subzero
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- SARCON GR-Pm
Thermal Conductivity
- Alphacool Subzero
- 16 W/mKBest
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- 4.5 W/mK (Hot Disk)
Electrical Conductivity
- Alphacool Subzero
- Insulating
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Insulating
Package Size
- Alphacool Subzero
- 1g / 3.5g / 20g tubes
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Sheet form, cut to size, multiple thicknesses
Recommended Use
- Alphacool Subzero
- High-end CPU/GPU (including overclocking)
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Mainstream CPU/GPU and uneven-surface gap filling
Reapplication Interval
- Alphacool Subzero
- Verify manufacturer-rated interval
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Reusable, non-curing putty sheet; no scheduled reapplication
Safety Notes
- Alphacool Subzero
- None
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Non-conductive silicone putty; no special handling precautions required
Conductivity Source
- Alphacool Subzero
- https://shop.alphacool.com/en/shop/thermal-conductant/thermal-compound/13009-alphacool-subzero-thermal-grease-20g
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- https://www.fujipoly.eu/sarcon-products/sarcon-gr-pm
Paste Segment
- Alphacool Subzero
- Standard Paste
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Pad
Which one should you pick?
Choose Alphacool Subzero if you want the higher thermal conductivity (16 W/mK vs 4.5 W/mK (Hot Disk)).
Choose Fujipoly SARCON GR-Pm Silicone Putty Sheet if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Alphacool Subzero | Fujipoly SARCON GR-Pm Silicone Putty Sheet |
|---|---|---|
| Newegg | View on Newegg | |
| Amazon | View on Amazon | |
| Fujipoly Europe | View on Fujipoly Europe |
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 Subzero
6.6 / 10 Expert Rating
A high-performance silicone-based compound from Alphacool with a strong published conductivity figure.
Fujipoly SARCON GR-Pm Silicone Putty Sheet
6.7 / 10 Expert Rating
A conformal silicone putty sheet suited to irregular gaps, from an established industrial thermal brand.