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Alphacool Subzero vs Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad: Comparison
Alphacool Subzero vs Laird (Laird Performance Materials) Laird thermal conductivity compared
There is no decisive spec gap here. Thermal conductivity splits them by a margin most buyers will never feel, Alphacool Subzero 16 W/mK against Laird (Laird Performance Materials) Laird 3 W/mK. There is a split on reapplication interval as well, Verify manufacturer-rated interval on the Alphacool Subzero versus No reapplication needed; reusable silicone elastomer gap filler on the Laird (Laird Performance Materials) Laird. They differ on conductivity source too, https://shop.alphacool.com/en/shop/thermal-conductant/thermal-compound/13009-alphacool-subzero-thermal-grease-20g on the Alphacool Subzero versus https://www.laird.com/products/thermal-interface-materials/gap-fillers/tflex-hr600 on the Laird (Laird Performance Materials) Laird. There is a split on paste segment as well, Standard Paste on the Alphacool Subzero versus Pad on the Laird (Laird Performance Materials) Laird.
Which should you buy, Alphacool Subzero or Laird (Laird Performance Materials) Laird?
Take the Alphacool Subzero for high-end CPU and GPU builds, including overclocking, wanting the highest non-liquid-metal conductivity available. It is equally the pick 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 Laird (Laird Performance Materials) Laird for M.2 SSD heatsink contact and laptop GPU/VRAM cooling, though it is not the pick for high-power desktop CPU/GPU dies needing >3 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 Laird (Laird Performance Materials) Laird (6.2/10): an industrial-grade gap filler pad from an established materials brand, cuttable to size for M.2 and laptop use.
Frequently asked questions
Do the Alphacool Subzero and Laird (Laird Performance Materials) Laird differ on compound type?
Yes. Compound Type reads High-Performance Silicone-Based on the Alphacool Subzero versus Silicone-Based Pad on the Laird (Laird Performance Materials) Laird.
Specs and benchmarks
Brand
- Alphacool Subzero
- Alphacool
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Laird
Compound Type
- Alphacool Subzero
- High-Performance Silicone-Based
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Silicone-Based Pad
Model
- Alphacool Subzero
- Alphacool Subzero , Subzero
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Tflex HR600
Thermal Conductivity
- Alphacool Subzero
- 16 W/mKBest
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- 3 W/mK (ASTM D5470)
Electrical Conductivity
- Alphacool Subzero
- Insulating
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Insulating
Package Size
- Alphacool Subzero
- 1g / 3.5g / 20g tubes
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- 229 x 229mm sheet, 0.5mm-3.0mm thickness options; also sold pre-cut for M.2 SSD/laptop use
Recommended Use
- Alphacool Subzero
- High-end CPU/GPU (including overclocking)
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Laptop-Thin-GPU, Mainstream CPU/GPU, M.2 SSD cooling
Reapplication Interval
- Alphacool Subzero
- Verify manufacturer-rated interval
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- No reapplication needed; reusable silicone elastomer gap filler
Safety Notes
- Alphacool Subzero
- None
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Non-conductive silicone elastomer; 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
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- https://www.laird.com/products/thermal-interface-materials/gap-fillers/tflex-hr600
Paste Segment
- Alphacool Subzero
- Standard Paste
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Pad
Which one should you pick?
Choose Alphacool Subzero if you want the higher thermal conductivity (16 W/mK vs 3 W/mK (ASTM D5470)).
Choose Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Alphacool Subzero | Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad |
|---|---|---|
| Newegg | View on Newegg | |
| Amazon | View on Amazon | |
| Laird / Laird Performance Materials | View on Laird / Laird Performance Materials | |
| Farnell | View on Farnell |
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.
Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
6.2 / 10 Expert Rating
An industrial-grade gap filler pad from an established materials brand, cuttable to size for M.2 and laptop use.