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Arctic MX-4 vs PCCooler EX90: Comparison
Arctic MX-4 and PCCooler EX90 separate most on thermal conductivity: Arctic MX-4 at 8.5 W/mK, PCCooler EX90 at 14.8 W/mK, 43% in favour of PCCooler EX90. They match on electrical conductivity and paste segment.
Specs
| Specification | ![]() | ![]() |
|---|---|---|
| Brand | Arctic | PCCooler |
| Model | Arctic MX-4 , MX-4 | PCCooler EX90 |
| Thermal Conductivity | 8.5 W/mK-43% | 14.8 W/mK |
| Electrical Conductivity | Insulating | Insulating |
| Package Size | 4g / 8g / 20g / 45g tubes | 4g tube |
| Recommended Use | Mainstream CPU/GPU (builds on a tight budget) | High-end CPU/GPU |
| Paste Segment | Standard Paste | Standard Paste |




