September 30, 2022

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Intel Core i9 12900KS Review

Intel Core i9 12900KS Review – Conclusion

The ‘out of the box’ and ‘out of the box’ unfortunately differ by motherboard brand because manufacturers are left very blank on this. At 1 the PBO is on by default, at the other MCE it is on and at the other devices it is off. This is why you have to go to a standard where you either turn everything on or everything off and not turn on and off in the other just because that’s the standard out-of-the-box experience with those brands. Unfortunately, we have to create benchmarks ourselves and so you have to test everything the same way.
I think hardly anyone makes a high-end PC that doesn’t do a benchmark and then come to the conclusion that without a PBO or MCE the CPU is slower than those benchmarks they base their purchase on and then research and quickly find out why. People who buy Dell or HP won’t bother with that.

For example, according to some reviews, you could just cap an intel 12900k in the bios and you would lose 10% performance for a 50% reduction in the application’s base power draw. On some boards the max is 125 Watts by default, and on others it’s only 255 Watts.

If board A with a limit of 125 watts only provides 1.2 volts to the CPU and board B with a limit of 255 watts at 1.3 volts, you have a good chance that they both perform the same even though 125 watts theoretically 10% loss guarantees that you can get more of this 125 Watts because of the lower voltage and it will run cooler, which also has advantages.

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For example, my motherboard runs my stock 9900k at 1.39V for the Vcore VCCSA and VCCIO while the default vcore should be 1.225V and the VCC voltages are close to that. (For me it is set to 1.205 for vcore and 1.17 for VCC voltages).

For example, my out-of-the-box CPU uses 135W on the full 4.7GHz (MCE off) and 185W with the MCE on but with the correct 1.225V it only uses 95W. These are huge differences in power and there are boards with 1.225v and 1.39v and MCE as an out of the box experience.

In short, nothing out of the box because each board offers a different experience out of the box and so you have to create a benchmark yourself if you want to seriously review. Generally this is MCE off with the last generations because this really leads to extreme temperatures and is no longer stable on standard voltages like a few generations ago (before 8600k) with a board using the correct voltages by default (otherwise you’ll be winding up idle temperature with a forced voltage because the idle voltages are no longer correct) and in the case of a running AMD PBO because that is comparable to intel turbo boost 3.0.

Only then will you make the best possible comparison.