The iPhone 15 Pro and iPhone 15 Pro Max have been criticized for their poor thermal management and throttling under sustained load. But a new software update from Apple seems to have fixed these issues. 

Apple released the iOS 17.0.3 update for new iPhones earlier this week. After testing the iPhone 15 Pro Max with this new iOS version, Chinese reviewer “Ah Zheng Is Very Hard” found that the phone’s performance and thermals have improved significantly.

For instance, the GPU score on Geekbench 6 increased from 27,163 on iOS 17.0.2 to 27,381 on iOS 17.0.3, while CPU scores largely remained the same. This may not seem like a big difference, but gaming performance has definitely improved.

Playing Honor of Kings on the iPhone 15 Pro Max with iOS 17.0.3 resulted in an average frame rate of 116.9 frames per second (FPS), while the same game yielded 105.4 FPS on iOS 17.0.2. Last year’s iPhone 14 Pro Max averages 103 FPS on iOS 17.0.3, for comparison.

Likewise, the phone’s temperature while playing the game also dropped around 1°C on the back and 0.6°C on the front. Other games, such as Genshin Impact and NiShuiHan, also ran cooler after the update, with temperature differences of over 2°C. However, the reviewer didn’t share the frame rate numbers for these two games.

Apple’s iOS 17.0.3 update seems to have improved the thermal management and performance of the iPhone 15 Pro / Pro Max. If you have an iPhone 15 Pro or Pro Max, we certainly recommend updating to iOS 17.0.3 to enjoy the improved performance.

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(Via)