We know the description of the curves from Cinebench, so I don’t need to repeat myself.
Intel Default (125 Watt / 251 Watt)
The peak values at 12 volts for everything are up to 760 watts, so this is not for the faint hearted. These 10-ms intervals can, depending on the power supply and manufacturer, force a 650 Watt power supply to give up and usually do. If not, I have another card and other resolutions. But we’ll get to that later. The CPU averages 133 watts pretty consistently, as Tau is never reached.
But much worse are the spikes to almost 252 watts. That’s almost 70 watts more than the Ryzen 9 5900X, which I measured in detail at its launch.
In the high-resolution measurement we can see this in more detail, whereby we can see that here even in the range of a millisecond approx. 640 watts can still be achieved as an average (in this exemplary section). This may well be even higher!
This is how the I9-11900K behaves as a 125-watt CPU with default settings when full requirements are invoked in gaming. There are also 250 watts no issue at all. What saves the CPU is just obfuscating averaging and generally lower resolutions when measuring. But such cosmetics do not help anyone in the system crash.
“Tower Air Cooler with 288 Watt Limit
We see that raising the limit does little. The game hardly gets faster and the power consumption hardly increases, on the contrary. While the average stays about the same, the spikes in volume actually go down now that there is less up and down control.
If you only look at the CPU, similar maximum values are visible, but the overall trend is slightly more balanced.
This continues with the zoomed 20-ms snapshot:
And once again a single shot:
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