iPhone 18 Pro benchmark boosted by giving it a cold drink
3x the vapor-chamber surface area can only do so much; luckily the fridge helped with sustained performance
A recent experiment by software developer Matt Birchler demonstrates how a cold beverage can enhance the performance of the iPhone 18 Pro. Birchler ran the new iPhone 18 Pro, alongside a 17 Pro and an M4 Pro MacBook Pro, through a benchmarking tool in an audio transcription app. The 18 Pro showed a 50 percent performance increase over the 17 Pro, with a notable improvement in sustained performance due to its larger vapor chamber.
Birchler discovered that placing a cold can of La Croix on the back of the phone helped it maintain a "fair" thermal state, resulting in consistent performance throughout the benchmark runs. While the vapor chamber's increased surface area aids heat dissipation, placing a cold beverage on the phone reduces thermal throttling and boosts performance.
Birchler recommends using a cold drink to improve the iPhone 18 Pro's performance, even though the can looks a bit out of place.
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