These links provide a quick way to access hardware profiles for Intel and Apple Silicon based iMacs on Low End Mac..

Retina 5K, 2020	4K, Late 2015	4K, Mid 2017	4K iMac, 2019
27″ iMac Pro	M1 iMac, 2021	M3 iMac, 2023	M4 iMac, 2024
See as a list