oven test：CPU cooling capacity 110W
1、CPU baking machine test (65W)
Preset BIOS settings，PL1=65W，PL2=221W。
Use AIDA64 FPU to perform oven testing on CPU，The initial maximum power consumption in the roaster reaches 190W，The temperature instantly reaches 100 degrees，The power consumption gradually decreases。 After 28 seconds，The power consumption of the oven is stable at 65W，Grill temperature 75 degrees，P core full core frequency 2.8GHz。
2、CPU baking machine test (110W)
Adjusted to PL1=110W，PL2=160W。
The oven lasted for nearly half an hour，The power consumption of the i9-12900 processor is stable at 110W，Processor temperature 92 degrees，P core full core frequency 3.5GHz，This frequency is 700MHz higher than that at 65W。
2、RTX 3080 Ti baking machine
Use FurMark to bake the GPU，7minutes later，Due to the high memory temperature (110 degrees)，GPU starts to downgrade，The final power consumption of the oven was stable at 334W，GPU core temperature 68 degrees，Hotspot temperature 76 degrees。It seems that the public version of the graphics card is always a little bit worse for the graphics memory heat dissipation.。
3、Double baking
Use FurMark to fully load the CPU and GPU at the same time，RTX 3080 Ti power consumption is too high，Heated the interior of the host，The power consumption of the i9-12900 processor can only reach 100W，The temperature has reached 100 degrees。
RTX 3080 Ti's baking machine consumes up to 334W，The core temperature is still only 67 degrees，Hotspot temperature 75 degrees。
CPU performance test：Multi-core performance is 43% stronger than i9-11900K
1、65Comparison of W and 110W performance
Because the preset BIOS has a short-term power consumption of 28 seconds, it can achieve extremely high power，To test the true performance at 65W power consumption，Cinebench R23 is undoubtedly the most suitable tool，Because it is either single thread or multi-threaded，The test will be continuously tested for 10 minutes before the score will be given。
At 65W，Only multi-core results，The score is 16398cb。
After unlocking to 110W，The multi-core score of i9-12900 reaches 20956cb，4558 points higher than 65W，Increased by 28%。 By the way, I ran a single core，Score 1831cb。
All the following tests were performed at 110W power consumption。
2、CPU-Z
CPU-Z test time is too short，Multi-core score reached 10577，Single core score 763。
3、Cinebench R15
In Cinebench R15，i9-12900 Single thread score 265cb，Multithreaded 3535cb。
4、Cinebench R20
i9-12900 in Cinebench R20 test，Single thread score 705cb，Multithreaded 8574cb。
5、y-cruncher
i9-12900 single-threaded y-cruncher 250Million takes 47.7 seconds，
Multi-threaded y-cruncher 2.5Billion takes 110.4 seconds。
6、POV-Ray
In POV-Ray，The single thread score of i9-12900 is PPS，Multithreaded score 7570PPS。
The test results are summarized as follows：
With 110W power consumption limited，The single-core performance of the i9-12900 processor is 6% stronger than that of the i9-11900K，Multi-core performance is significantly ahead of 43%。
Compared with the full-blooded i9-12900K，The single-core performance of the i9-12900 is 8.6% worse than that of 8.6%，Multi-core performance is 14.5% worse。