Power consumption and efficiency during gaming
There is a striking difference in drinking behavior between Intel’s new CPUs. While the Ryzen 9 7950X is still at the top of the glow trumps, the i9-13900K is now close on its heels. The AMD CPU is always thirstier than the rest when it drifts into the partial load range. Intel thus has a clear advantage here again. However, the Core i5-13600K is no slouch either and sucks almost as much as the Ryzen 9 5900X as long as there is a decent load.
Let’s now look at the efficiency already briefly mentioned. So, we can see that Raptor Lake is much more frugal with a limited load and really only gets itself filled with power when there is a full performance boost. AMD will be left behind until then. It doesn’t make any sense to override the power limit on Raptor Lake, and there were even situations where too much power (without a thermal limit) pushed the FPS rates down again in a counterproductive way. If you mainly play games, you can even cap the Core i9-13900K at 125 watts without a guilty conscience and performance losses, the part will still run at the top.
Power consumption and efficiency in mixed workloads
This is where AutoCAD comes in handy, because there are no performance-hungry rendering interludes. The CPU load is usually below 70 percent, often enough even much lower, which reflects the normal workday quite well. In addition, the Cadalyst run is quite consistent in terms of power consumption on systems with different speeds. Here, the Intel Core i9-13900K puts itself rather ingloriously in the limelight, because it drinks like a hole. The Core i5-13600K is still decent in comparison, especially since it performs excellently.
Now you can put the score in relation to the power consumption to show the efficiency. The two new Raptors could not be positioned more differently. While the Core i5-13600K only just loses the efficiency crown against the foot-lame Core i5-12400, the thick-ship Core i9-13900K makes a fat power party at the socket together with AMD’s old Ryzen 9 of the 5000 series.
Full power during rendering
Here, the Core i5-13600K is in the midfield, while the big CPU allows itself a decent energetic load. With almost 280 watts on average (peak 286 watts), it even surpasses the Ryzen 9 7950X, the previous leader at the counter. But there is always the question of what you get in return. Here it is even a little less.
If you compare the power consumption and performance under full load, Raptor Lake only ranks in the upper midfield. But at least it doesn’t quite turn into a disaster, also because of my little brake at the power limit, which isn’t really one, though, because I just keep to the specs.
- 1 - Introduction, preface and CPU specs
- 2 - What's new with Raptor Lake?
- 3 - Test setup and methodology
- 4 - Gaming Performance HD Ready (1280 x 720 Pixels)
- 5 - Gaming Performance Full HD (1920 x 1080 Pixels)
- 6 - Gaming Performance WQHD (2560 x 1440 Pixels)
- 7 - Autodesk AutoCAD 2021
- 8 - Autodesk Inventor 2021 Pro
- 9 - Rendering, Simulation, Financial, Programming
- 10 - Science and Math
- 11 - Power consumption and efficiency
- 12 - Summary and conclusion
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