Let’s now start measuring the power consumption as well as the corresponding temperatures of the cooling system in the performance mode. I measure the temperatures with a calibrated Optris Pi640 and the respective emissivities of the surfaces. The matt black paint of the cooling block is already quite close to the ideal and is about 0.98, which can also be easily reproduced with the measuring paint. All bare metallic surfaces were coated with the reference paint at the measuring points. The final measurement was taken after 15 minutes of load.
Since all components like CPU and GPU show very constant values after this time period, I do without curve diagrams and limit myself to pure numerical values. As a basis for the GPU I use the GPU diode (the average), for the CPU I use the package temperature of the Core i9-11900K, because here averaged values are displayed in 256 ms intervals and this also shows the cache and the power gates
The system (here a reference picture with deactivated network and virgin Windows installation) runs pleasantly cool and quiet in idle, no matter which power mode is selected.
Full load on the CPU (Prime95, Small FFTs)
In the pure stress test, we can see very nicely how the CPU shoots up to almost 252 watts (PL2), only to immediately collapse again to up to 160 watts and then return to the PL1 value of around 125 watts after the end of the interval for PL2. The load of the entire system is about 213 to 216 watts. The noise level is 57 dBA in PL2 and then drops to about 52 dBA in PL1.
The GPU stays at a maximum of 44 °C, while the CPU immediately shoots up to 100 °C in PL1, to then finally level off at 84 to 85 °C in PL1. The cooling block remains the sovereign overall winner, if you disregard PL2, which you have to chalk up to CPU alone.
Full load on the GPU (Furmark)
Let’s reverse everything and load the GPU now. Dynamic Boost applies the full 15 watts of boost here, bringing us to a total of 165 watts. The total system load is approximately 250 to 251 watts. The noise level is slightly fluctuating at around 54 to 55 dBA.
The CPU package gets as warm as 58 to 60 °C with the average 34 watts, while the GPU is at 77 to 78 °C. The infrared image also shows no abnormalities.
Maximum load on GPU (Furmark) and CPU (Prime95 Small FFTs, 12 threads)
Now let’s get to the maximum inferno and stress both the GPU and the CPU. I only run the latter with 12 threads, because otherwise Furmark would be slowed down. The system load quickly settles at 360 watts, since the PL1 slows down the CPU to 125 watts and the graphics card has to be satisfied with 150 watts without Dynamic Boost. Approximately 57 dBA is audible at the ear and the meter.
The temperatures of the CPU are now at 93 to 94 °C and those of the GPU at 73 to 74 °C. The level of the CPU is thus higher than in the single test, since the heat pipes also have to dissipate the waste heat of the following graphics card. What is a bit out of line is the DDR4 RAM with just under 79 °C Of course, that’s the worst case scenario and below the specs limits, but it’s getting a little close.
Gaming Load (Control DX 12 , DXR On, DLSS Off)
The system load is now significantly lower with 293 to almost 300 watts, since the CPU only consumes between 60 and 70 watts. Thanks to Dynamic Boost, the graphics card fluctuates between 150 and 165 watts, which is exactly within the specifications. Acoustically, however, we still get quite stressed with the ample 54 dBA and you should use some closed headphones while gaming, unless the game needs the immersion from the polar or Sahara storm. Then you even have real stereo of the two pithy whisks.
The temperatures still turn out quite moderate with 60 to 80 °C depending on the gaming situation, while the GPU now gets 76 to 77 °C hot. In the end, this is certainly all still within limits, but it is still so loud in the long run, even when gaming, that one hopes for a remedy. You will also find them on the next page in the entertainment mode. I hope so.
- 1 - Introduction, Unboxing and Connectivity
- 2 - Datasheet and Manual
- 3 - Maximum Power Draw, Battery and Cooler
- 4 - Disassembling and Removing the Cooler (Diary)
- 5 - CPU, Thermal Grease and Assembling (Diary)
- 6 - Performance Mode: Power Draw, Temperatures, Infrared
- 7 - Entertainment Mode: Power Draw, Temperatures, Infrared
- 8 - Summary and Conclusion for Part One
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