AMD Ryzen 9 9950X vs Ryzen 9 9900X CPU Review

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Power & Temperature

On this page, we are going to explore power and temperature. We will do full-load testing in Cinebench 2026 for Multi-Core power and temperature. We will also do gaming-specific power and temperature by playing Cyberpunk 2077. All of our data has been captured with HWiNFO64.

CPU Power Full-Load

CPU Power Cinebench 2026 Multi Core AMD Ryzen 9 9900X versus AMD Ryzen 9 9950X

In our full-load all-core CPU power testing, both CPUs are hitting their PPT power limits. This means the Ryzen 9 9950X consumes about 40W more than the Ryzen 9 9900X, or 24% more power. Consequently, this is the same performance percentage difference we experienced in our multi-thread multi-core benchmarks, so the power and performance scale linearly.

CPU Power Gaming

CPU Power Gaming Cyberpunk 2077 AMD Ryzen 9 9900X versus AMD Ryzen 9 9950X

When just gaming, the AMD Ryzen 9 9950X does still use more power, but not a lot; it’s about 14W more power, or 10% more power consumed while gaming. Since the performance advantages were mostly smaller than this, it consumes a bit more power than the performance increase we experience while actually gaming.

CPU Temperature Full-Load

CPU Temperature Cinebench 2026 Multi Core AMD Ryzen 9 9900X versus AMD Ryzen 9 9950X

When running full-load, all-cores, both CPUs are about 10 degrees apart in package temperature, with the Ryzen 9 9950X running at 82c, while the Ryzen 9 9900X runs cooler at 72c.

CPU Temperature Gaming

CPU Temperature Gaming Cyberpunk 2077 AMD Ryzen 9 9900X versus AMD Ryzen 9 9950X

When gaming, the AMD Ryzen 9 9950X also runs warmer, at close to 79c, while the Ryzen 9 9900X runs cooler at 73c while gaming.

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Brent Justicehttps://www.thefpsreview.com
Former managing editor/reviewer of GPUs at HardOCP (18 years 2001-2019), & former writer for Sharky Extreme, Brent Justice has been reviewing computer components since the 90s, educated in the art and method of the computer hardware review, and gaming, he brings experience, knowledge, and hands-on testing with a gamer-oriented and hardware enthusiast perspective. You can follow him on Twitter - [@Brent_Justice] and You can follow him on YT - [Justice Gaming] [@JusticeGamingChannel]

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