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iPhone 15 Pro Max vs iPhone 17 Pro Max

iOS

iPhone 15 Pro Max

82.5%speed held · 5 min · multi-thread
VS
iOS

iPhone 17 Pro Max

75.7%speed held · 15 min · multi-thread

iPhone 15 Pro Max holds its speed better under sustained load

82.5% against 75.7% of full speed · different test settings, see below

Under sustained load

iPhone 15 Pro Max keeps 82.5% 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
Throughput over time: iPhone 15 Pro Max against iPhone 17 Pro Max25%50%75%100%0:005:0010:0015:00Throughput over time: iPhone 15 Pro Max against iPhone 17 Pro Max25%50%75%100%0:005:0010:0015:00
iPhone 15 Pro MaxMeasureiPhone 17 Pro Max
5 min · multi-threadTest15 min · multi-thread
1.90 GIPSFastest sample2.19 GIPS
1.57 GIPSSecond-half average1.66 GIPS
79%Lowest 5-second average70%
NominalHottest state reportedSerious

The devices

iPhone 15 Pro MaxMeasureiPhone 17 Pro Max
iOSPlatformiOS
–Chip–
–GPU–
iOS 26.6.1OSiOS 27.0

iPhone 15 Pro Max iPhone 17 Pro Max

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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