Swapped thermal paste from Arctic MX-4 to PTM7950 after a GPU hotspot issue

Lee Mitchell · 2026-07-28T14:20:03.873775+00:00

Used to swear by MX-4 for everything, but my RTX 3080 started hitting 105C hotspot last month while gaming. A buddy on r/buildapc sent me a sheet of PTM7950 and it dropped the hotspot to 92C under load. Has anyone else made the switch and seen that big of a difference on high wattage cards?

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Swapped thermal paste from Arctic MX-4 to PTM7950 after a GPU hotspot issue | Computer Technicians - Chatter Central