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In his tweet, @TheGalox_alt points out the difference between the two variants of the Snapdragon 8 Gen 3 for Galaxy APs. One has a Cortex-X4 Prime Core running at 3.4GHz while the other has the Cortex-X4 Prime core clocked at 3.3GHz. The version of the Galaxy S24 Ultra being sold in the U.S. and Korea (which are designated by Samsung as markets “U” and “N” respectively) will use the version of the chipset with the Cortex-X4 clocked at 3.30GHz.
Galaxy S24 Ultra units being shipped to region “B” will use the Snapdragon 8 Gen 3 for Galaxy with the faster Cortex-X4 Prime Core. Unfortunately, we don’t know what market “B” represents. We can assume that the chipset with the faster Prime Core will be used on Galaxy S24 Ultra models found in markets outside of the U.S. and China.
We should point out that U.S. consumers shouldn’t worry about this discrepancy in clock speed since a 100MHz difference shouldn’t be something that is easily detected by users. And even if the faster Prime Core clock speed does juice up the phone when playing games, for example, there is always the possibility that thermal issues ensue forcing the device to throttle. And that would get rid of any possible advantage for those sporting the Galaxy S24 Ultra outside of the U.S. and China.
It’s not that we expect any thermal issues with the Snapdragon 8 Gen 3 for Galaxy running on the Galaxy S24 Ultra. Samsung has equipped the latter with a vapor chamber; this is a thin pipe inside the phone containing a liquid that absorbs heat, moves it away from the chipset, and turns it into a vapor that travels to the cooler part of the chamber. Once it returns to liquid, the cycle starts over again until the heat is distributed evenly over the chamber.