THERMOHAMMER Get the app

iPhone 12 vs iPhone 15 Pro Max

iOS

iPhone 12

91.0%speed held · 5 min · multi-thread
VS
iOS

iPhone 15 Pro Max

82.5%speed held · 5 min · multi-thread

iPhone 12 holds its speed better under sustained load

91.0% against 82.5% of full speed

Under sustained load

iPhone 12 keeps 91.0% of its speed, iPhone 15 Pro Max 82.5%.

Throughput ribbonshare of full speed over time
Throughput over time: iPhone 12 against iPhone 15 Pro Max25%50%75%100%0:001:002:003:004:005:00Throughput over time: iPhone 12 against iPhone 15 Pro Max25%50%75%100%0:001:002:003:004:005:00
iPhone 12MeasureiPhone 15 Pro Max
5 min · multi-threadTest5 min · multi-thread
1.43 GIPSFastest sample1.90 GIPS
1.30 GIPSSecond-half average1.57 GIPS
79%Lowest 5-second average79%
FairHottest state reportedNominal

The devices

iPhone 12MeasureiPhone 15 Pro Max
iOSPlatformiOS
–Chip–
–GPU–
iOS 26.5.2OSiOS 26.6.1

iPhone 12 iPhone 15 Pro Max

Where does yours land?

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

Get it onGoogle Play Download on theApp Store Windows: on its way to the Microsoft Store