In the previous push, Xiaobian not only repeatedly emphasized that TDP (thermal design power) is not the actual power of the CPU, in fact, occasionally mentioned another power indicator of the CPU - maximum power, I don't know if the small partners have noticed. Perhaps remember the small partners are for a reason, that is, "shock", such as the maximum power of these generations of flagship Core are running to 250W, some small partners even doubt that if you use the flagship Core, the electricity bill can not hold up.
this...... Of course, it is a wrong understanding, which has to start from what the maximum power means, and why the core's maximum power consumption is so much higher than the Ryzen. In fact, it is very simple, because Core uses a more complex power regulation method, a bit of a "chicken thief" in the power supply, temperature permitting the case of a short time ultra-high power consumption operation, quickly solve some calculations, speed up the overall operation. How long is this "short time"? It is calculated in seconds or even milliseconds.
Core's power adjustment has several grades, such as PL (short for Power Limit) 1, PL2, the duration of the small point of the increase is longer, the more large the increase, the shorter the duration, so there is a little trouble is that its total power consumption is difficult to calculate directly. Especially compared with the high-end Ryzen's more "reserved" high-end power setting, is Core really super power hungry? Let's take a look at it through actual measurements.
In the case of similar heat dissipation conditions, the results of testing with Battlefield 2042 and Cyberpunk 2077 are: the average power of the Core i9-10900K is 99.4W, the average power of the Core i9-11900K is 104W, the average power of the Core i9-12900K is 89.9W, and the average power of the Ryzen™ 9550X is 89.5W, huh? The i9-12900K is only a drop higher than the flagship Ryzen™ Not only that, but it's even lower in some tests.
The reason is also very simple, that is, core power adjustment is very fast, the time in the ultra-high power state is really short, the two are multiplied is the actual power consumption, relatively long running overall power consumption, the impact is not large. In fact, in the test can also see a phenomenon, high resolution CPU power consumption instead of decreasing, it is obvious that because the graphics card is more and more difficult, the frame rate is decreasing, the CPU is actually more and more unnecessary to contribute, which is why the game to test the CPU to use low resolution.
However, Xiaobian also has to go back to say that although intelligent power adjustment can improve instantaneous performance without affecting the overall power consumption, and is especially useful for applications with unbalanced loads, the highest power requirements for the power supply and the instantaneous heat dissipation capacity requirements (TDP) requirements for the heat sink are real. When the same level of Core is installed, it is still necessary to choose a more expensive power supply and a stronger radiator than the Ryzen installed, which is "harmful" to the wallet.