Chosen Solution

Hey guys, I just got an iMac from Late 2013 with the i5-4570S and a GT750. I planned on swapping the internal 1TB HDD with a SanDisk Ultra 3D SSD 1TB and thought about a CPU and RAM upgrade. Which CPUs will work with Monterey or at least Big Sur? i7-4470s from the same model? Or can I install something much newer and more efficient? Are the specific iMac CPUs that I should use? thank you very much in advance Cheers

Sorry the CPU in this series is soldered onto the logic board, as such its not upgradable. Review the iMac Intel 21.5" EMC 2638 Teardown