Operating Systems
Sierra through Catalina completed the move toward 64-bit-only applications.
Era2016-2019
Architecture / focusIntel
What to compare
Compare generation, intended workload, performance, energy use, expandability, software support and total maintenance needs. Product names alone rarely identify every important compatibility difference.
Compatibility and security
Unsupported or outside normal security servicing; verify model limits.
Reference note: Specifications and support status can vary by exact model, release, board revision and vendor policy. Verify critical decisions with the manufacturer or project documentation.