AMD Ryzen 9 7900X CPU Review

For CPU load results, we read the power draw after running 10 minutes of the Cinebench R23 nT all-core rendering test. The same test parameters are used for temperature readings.

The power consumption of our entire test system (at the wall) is shown in the chart. We also include the reported CPU Package Power.

Power Consumption

Power draw readings are accurate to around +/-5W under heavy load due to instantaneous fluctuations in the value.

Looking at power consumption, it doesn’t make for particularly pretty reading with all of the modern Core i9 and Ryzen 9 CPUs.

194W package – which was just under 300W wall – for the 24-thread Ryzen 9 7900X is a hefty draw.

It is, however, lower than the Core i7-13700K and Core i9-13900K in their Auto running modes, and it does allow AMD’s Zen 4 cores to run at 5.1GHz average.

Temperatures

Temperature recordings were taken using 360mm AIO CPU cooler. Ambient temperatures were around 25°C.

High power draw means high temperature levels too. The 7900X isn’t as bad as expected here, with a load value just shy of 90C under a 360mm AIO.

You’re going to need a burly cooler to handle the 194W package power of Ryzen 9 7900X. But even then, temperatures will still be high, as is the nature of Ryzen 7000 with AMD’s Precision Boost 2 algorithm.

Become a Patron!

Be sure to check out our sponsors store EKWB here