laser height_test
1920×1080 px

MacBook Air (M1, 2020)
Chip: M1
Memory: 16GB

vs.

MacBook Air (Retina, 13-inch, 2019)
Processor: 1.6GHz Dual Intel Core i5
Memory: 8GB 2133 MHz LPDDR3
Graphics: Intel UHD Graphics 617 1536MB

clang++ -std=c++17 -Wc++17-extensions -fobjc-arc -O3 -framework Cocoa ./main.mm -o ./main

Radius is 32 px
Increasing the radius does not change the process speed.

M1: 0.003sec
Intel: 0.015sec

M1: 0.004sec
Intel: 0.018sec

M1: 0.005sec
Intel: 0.03sec

M1: 0.007sec
Intel: 0.035sec