Intel’s flower overclocking, easy for anyone! Intel Core i9-12900KF Overclock


Half of 2022 has already passed. The COVID-19 pandemic is also gradually coming to an end, and the graphic card crisis that has no end in sight is also entering a plateau.

Intel’s 13th generation Raptor Lake is also scheduled to be released in conjunction with Nvidia’s RTX 40 series, which is scheduled to be released in the second half of this year. You can also expect a stronger comeback.

But you can’t use a CPU that hasn’t been released yet, so how can you upgrade its performance? There is only one answer. You need to maximize the performance of your current CPU. In this article, I would like to try overclocking with an Intel Core i9-12900KF to unlock the hidden performance of the CPU.

Intel Core i9-12900KF, the flagship’s presence is certain

If we were to pick the point that received the most attention as Intel returned to the 12th generation, it would be the architectural change.

Intel’s 12th generation Elder Lake architecture has an unusual structure of P-Core and E-Core, which is often called Big Little. The P-core in charge of high performance and the E-core in charge of high efficiency determine flexibly according to the logic and distribute the work appropriately, reducing unnecessary power consumption and increasing efficiency.

Among them, the Core i9-12900KF, which boasts overwhelming performance with 8 P-cores, 8 E-cores, and 24 threads, has a very solid position as Elder Lake’s larger brother.

Even if you just use the powerful Core i9-12900KF, as it is the K version, if you can get hidden performance for free with simple overclocking, you will be able to taste the effect of the upgrade a little.

In the case of overclocking, please note that even if the CPU is the same model, the value may vary depending on the yield or system environment.

■The highest level of CPU, matching parts carefully

As mentioned above, the Intel Core i9-12900KF is the model with the best performance among the 12th generation Elder Lake.

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Also, since this model is a K version, overclocking is possible, but as it is a flagship model, it generates quite a bit of heat. In addition to that, if you want to add overclocking, you have to pay attention to the surrounding components.

First, you need to use a cooler that can effectively control the heat generated by the processor. Naturally, if you want to overclock a top-tier CPU like the Core i9-12900KF, an air cooler is probably unreasonable.

An all-in-one water cooler with a radiator size of at least 280mm is recommended, and I used a cooler with a 360mm radiator size for more effective heat control.

The reason for overclocking is to bring out more performance of the CPU. However, the motherboard, which must supply power to the CPU stably, is also a very important component.

If the heat generated by the main board’s power supply is not quickly dissipated, the amount of power supplied to the CPU may be unstable and the desired results may not be obtained. Users who want to improve performance through overclocking need to look for a product with a strong mainboard power supply.

I used ASUS’ MAXIMUS Z690 APEX, which excels in all parts, such as top-quality MOSFETs that can quickly dissipate heat, and a flat heat sink with a flat structure.

Since it is a motherboard that is very well versed in the overclocking field, it contains everything necessary for users who want simple or hardcore overclocking.

Intel’s XTU improves performance with one click

To briefly explain Intel’s XTU program before proceeding with overclocking, it is an abbreviation for Extreme Tuning Utility, a program created by Intel to control its CPU.

In the early version, there were a few problems, so experienced users controlled it through the BIOS as before, but in the latest version, many parts have been improved and it is a program that even experienced users use.

The Intel XTU program has an automatic overclocking function, which literally checks the CPU to find an operable multiple and overclock it.

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If you go to the left side speed optimizer tab of the program, you will see the following screen. If I already click the blue box in the center of the screen, it automatically finds the multiplier. When the blue box is clicked, it is applied at the same time as finding a multiple. When you click the box, a warning message will appear, click Agree and proceed.

If it went well, you would see a screen like the one above, but in my system, a value of 51 multiples came out.

It is currently applied, and it can be seen that when a load is applied, the P-Core is operated at 51 times and E-Core 40 times.

In the overclocking system, stability is not guaranteed and various errors occur one after another, so testing after overclocking is a must.

I also tested it with Cinebench, a rendering test that puts a load on the CPU. There was no big difference in the single-core area, but it shows a slight improvement in the multi-core area.

Next, to check the overall CPU performance, I tested it using the benchmark tool of the CPU-Z program.

Like Cinebench, there was no significant difference in single-core. On the other hand, it can be seen that there is a performance improvement with a slightly wider gap in multi-core.

During the test, I also checked the CPU temperature, and it showed that the CPU usage rate did not exceed 92 degrees even when the load was applied at 100%. However, keep in mind that the limit and temperature may be different for each CPU.

However, automatic overclocking does not modify other options such as voltage or cache multiplier, so if you want more detailed overclocking, manual overclocking is also possible.

If you go to the Advanced Tuning tab on the left, you can precisely control core voltage, power limit, P and E-core multiplier adjustment, and memory timing.

However, since the CPU, which is the central role of the PC, is adjusted in real time, you may be disappointed if you press anything, so it is better to be careful about this part.

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■ ‘Flower of Intel’ Overclocking, anyone can easily do.

In the past, overclocking was something that only related intellectuals had, so the difficulty was very high, and the cost of a high-end system for overclocking was also very burdensome. I also used a high-end system, but unlike before, the cost was at a level I could afford.

In addition, in this article, there is no need to insist on an expensive high-end in terms of price, as we proceeded with national overclocking that is possible even in the mainstream class rather than extreme overclocking.

In this article, I used the flagship Intel Core i9 product, but you can use the K version Core i7 or i5 CPU according to your purpose and budget.

For CPU overclocking, Z690 board is essential. Among them, stable overclocking is possible only when a model with a strong power supply is selected for stability, and it can be purchased at a reasonable price of about 270,000 won based on the ATX form factor.

In addition, to avoid problems in the heat dissipation part, an integrated water cooling cooler with a radiator of 280mm or larger is more suitable than an air cooling cooler. Currently, it can be purchased for about 130,000 won based on a 280mm radiator size water cooling cooler.

Although not mentioned in the text, power is also one of the important components for overclocking, and in the case of power, it is recommended to select the power according to your graphic card as it may vary depending on the graphic card grade.

It is true that if you want higher performance through overclocking, you must use a better and more expensive product.

However, it is possible to use the top-level processor and components for overclocking purposes, so let’s try overclocking with wise consumption and increase the performance.


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