AMD Ryzen 9 7945HX (Dragon Range) processor review

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Power Consumption and temperatures

Power Consumption

We show energy consumption based on the entire unit (motherboard / processor / graphics card / memory / SSD). This number depends and will vary per motherboard (added ICs / controllers / wifi / Bluetooth) and PSU (efficiency). Keep in mind that we measure the ENTIRE PC, not just the processor's power consumption. Your average PC can differ from our numbers if you add optical drives, HDDs, soundcards etc.  Also, do not rule out anything RGB these days; an RGB lit motherboard, Keyboard, Liquid cooler, and mouse these days can easily add 10 to 15 Watts of power consumption to that Wattage budget. 

 

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We want to make it very clear that power consumption measurements will differ per PC and setup. Your attached components use power but your motherboard can also have additional ICs installed like an audio controller, 3rd party chips, network controllers, extra SATA controllers, extra USB controllers, and so on. These parts all consume power, so these results are a subjective indication. Next to that, we stress all CPU cores 100% and thus show peak power consumption. Unless you transcode video with the right software, your average power consumption will be much lower.

With the processor maxed out, the laptop sits at ~150W power usage (that's the entire laptop incl display). During gameplay (CPU+GPU) at 2560x1440 you['ll average out roughly 250 Watts for the entire laptop, so that's proc and GPU in usage.

Temperatures

We don't compare temperature data since we'd have to apply identical cooling to all platforms repeatedly. Furthermore, coolers (RPM) respond differently to TDP and variables set in your motherboard BIOS. As a result, we do a temperature stress test.

  

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Please note that you can see PPT (max power consumption) at roughly 85W. The temperature results are pretty darn high, under load and the default balances energy profile setting, the laptop, as such can reach 43 Dba acoustic values. The GPU under stress will reach 80 Degrees C. Both values are to be considered quite moderate. 


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