New iPhone 17 Pro vapor chamber cooling is so good that phone reportedly stays cool even during extreme AI loads
The Apple iPhone 17 Pro and the 17 Pro Max are among the most powerful smartphones on the market, thanks to the excellent A19 Pro SoC. In addition to the raw CPU, GPU, and efficiency gains afforded by the A19 Pro, the iPhone 17 Pro and the iPhone 17 Pro Max feature vapor chambers for cooling. Combined with aluminum unibodies that are much better at thermal conductivity than titanium frames, Apple claims that the iPhone 17 Pro and the 17 Pro Max deliver “incredible performance while remaining comfortable to hold”.
This is precisely what Argmax has found after putting the iPhone 17 Pro through some rigorous AI testing.
Argmax, a developer of AI tools, reports that, in addition to massive AI performance gains, the vapor chamber inside the iPhone 17 Pro does an amazing job at keeping the device cool under extreme loads.
Argmax tested the cooling performance of the iPhone 17 Pro, iPhone 16 Pro, and the iPhone 17 by having the devices transcribe 30 minutes of a YouTube video in “real-time with sub-second” latency. The extreme load that this places on a smartphone is enhanced by the fact that the test was run on the GPU of the iPhone 17 Pro and the iPhone 16 Pro, and not the Neural Engine. The iPhone 17 used the Neural Engine in this test, which is much more efficient and produces less heat.
The result? The Apple iPhone 17 Pro’s vapor chamber and aluminum unibody make for a capable combo to dissipate heat, as the smartphone only heated up to 29°C. In contrast, the iPhone 16 Pro, which lacks a vapor chamber and has a titanium frame, hit 40 °C. The iPhone 17 also stayed below 30 °C.
To put it simply, the iPhone 17 Pro and the iPhone 17 Pro Max appear to be superb when it comes to managing thermal load. So, whether you are just using your phone for social media, shooting 4K videos, or gaming, the iPhone 17 Pro and the iPhone 17 Pro Max should remain comfortable to hold for long periods of time.
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