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iPhone 15 vs iPhone 17 Pro Max

iOS

iPhone 15

77.3%speed held · 5 min · multi-thread
VS
iOS

iPhone 17 Pro Max

75.7%speed held · 15 min · multi-thread

iPhone 15 holds its speed better under sustained load

77.3% against 75.7% of full speed · different test settings, see below

Under sustained load

iPhone 15 keeps 77.3% of its speed, iPhone 17 Pro Max 75.7%. The runs used different settings (5 min · multi-thread against 15 min · multi-thread), so read the gap with care.

Throughput ribbonshare of full speed over time
iPhone 15 77.3% iPhone 17 Pro Max 75.7%
Throughput over time: iPhone 15 against iPhone 17 Pro Max25%50%75%100%0:005:0010:0015:00Throughput over time: iPhone 15 against iPhone 17 Pro Max25%50%75%100%0:005:0010:0015:00
iPhone 15MeasureiPhone 17 Pro Max
5 min · multi-threadTest15 min · multi-thread
1.82 GIPSFastest sample2.19 GIPS
1.41 GIPSSecond-half average1.66 GIPS
76%Lowest 5-second average70%
SeriousHottest state reportedSerious

The devices

iPhone 15MeasureiPhone 17 Pro Max
iOSPlatformiOS
–Chip–
–GPU–
iOS 27.0.1OSiOS 27.0

iPhone 15 iPhone 17 Pro Max

More matchups

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Compare any two devices

Where does yours land?

Run the benchmark on your own device and compare it with either of these in the app.

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