Apple is not generally known for self-effacement. After all, the Cupertino giant typically makes sure that its users notice and appreciate every single iterative improvement in its iPhones, no matter how granular.
So, it was only a matter of time before Apple turned its attention to the iPhone 17 Pro's vapor chamber, which constitutes one of the biggest under-the-hood changes for the new model.
Apple releases a new video to highlight the capabilities of the iPhone 17 Pro's new vapor chamber
Apple has just released a new video on its YouTube channel, representing its A19 Pro chip as an athlete in an arid environment, who is shown contending with "35 trillion complex tasks a second," with evaporative cooling - the critical element in a vapor chamber - playing an outsized role in ensuring the optimal performance of the chip. According to Apple, "when you run cool, you can push your limits."
For the benefit of those who might not be aware, the iPhone 17 Pro features a laser-welded aluminum chamber that contains deionized water, which absorbs heat from the components and turns into vapor, effectively cooling down the critical components in close proximity. The vapor then moves away from the heat source, cools by transferring heat to the outer frame, and turns back into liquid water. The cycle continues to repeat.
Apple's decision to go with an aluminum frame, which dissipates heat faster than one made from titanium, and a dedicated vapor chamber allows the A19 Pro chip to run faster and at a higher wattage.
For instance, as we covered recently, the A19 Pro achieved 52.2FPS (6.1W) while playing Resident Evil 4 Remake, constituting a 56 percent improvement over the A18 Pro (4.7W), which only averaged 33.3FPS, and a 65 percent improvement over the A17 Pro (4.9W), which averaged 31.6FPS.
About the author: Writing is my one incontrovertible passion. Over the past six years, he has authored over 2,200 distinct articles on financial and tech-related topics, spanning nearly 1 million words. And he has been a member of Wcctech mobile team since 2025. As an alumnus of the University of Toronto, Rotman Commerce Program, I bring nuance, in-depth knowledge, and a unique perspective to every topic that I cover. When I'm not writing, I'm traveling the world, exploring hidden confectionaries and restaurants as an aspiring food connoisseur.
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