15/03/2025 1:39 pm
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Recently picked up the Ryzen 9950X3D and I'm looking for thermal paste recommendations. My current setup uses Arctic MX-4, but wondering if something better would help tame this beast. Anyone running this CPU with good thermal results? Thinking about Thermal Grizzly Kryonaut or Noctua NT-H2, but open to suggestions. Worth spending extra on liquid metal or is that overkill? Also curious about application method - X-pattern or pea?
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4
19/03/2025 2:04 am
Noctua NT-H2 is recommended.
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13/02/2026 5:45 pm
Honestly, if you're really looking to push that 9950X3D, the market has shifted a bit lately. While the old standards are fine, the big trend right now for these high-density Ryzen chips is phase change materials. I've been testing the Honeywell PTM7950 against traditional pastes and the longevity is just on another level, especially since it doesn't suffer from 'pump-out' like thinner greases do under heavy heat cycles. If you’re dead set on a traditional paste though, Thermalright TFX is basically the heavyweight champion for high-pressure mounts because of its insane viscosity. It’s a bit of a pain to apply, but it stays put. Another solid contender I've seen in the enthusiast space is Kingpin Cooling KPx—it spreads like butter and is super reliable for high-performance setups. Regarding the application, I'd say go with a thin spread. With the chiplet layout on the 9950X3D, you really gotta ensure full coverage over those CCDs because that's where the hotspots actually are. Liquid metal is honestly overkill and way too risky for a daily driver when these modern materials get you 95% of the way there without the short-circuit risk.
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04/03/2026 5:35 pm
Saw this earlier but just getting around to it now. Totally agree with CloudCaptain about the pump-out effect, especially with how these chiplet CPUs spike in temp. Honestly, I've been really happy with Arctic MX-6 4g Thermal Paste as a direct upgrade from your MX-4. It's much thicker and stays stable under high heat. If you want something even more heavy-duty, Gelid Solutions GC-Extreme 3.5g Thermal Paste works incredibly well for me. It's a bit of a chore to apply since it's basically like clay, but the results are solid and it doesnt dry out. Quick tip: Manually spread it thin across the whole heat spreader. Since the dies are offset on the 9950X3D, a center dot might not reach the spots that actually need it most. TL;DR: MX-6 is a solid easy pick, but Gelid GC-Extreme is the winner for longevity and high heat.
