Model Year | Memory Upgradeable | Memory Speed | Hard Drive Upgradeable | macOS Compatibility | Alternative OS |
2012 | Yes (up to 16GB) | 1600MHz DDR3 | Yes – 2 bays | macOS 10.8+ | ESXi, Ubuntu, CentOS |
2014 | No | 1600MHz LPDDR3 | Yes – 1 bay (+PCIe slot) | macOS 10.10+ | ESXi, Ubuntu, CentOS |
2018 | Yes (up to 64GB) | 2666MHz DDR4 | No – 1 PCIe | macOS 10.14+ | macOS Only |
CPU | Geekbench 1-Core | Geekbench Multi-Core | Memory |
2.5GHz Dual-Core Intel i5 | 2946 | 5709 | 16GB |
2.3GHz Quad-Core Intel i7 | 3261 | 10800 | 16GB |
CPU | Geekbench 1-Core | Geekbench Multi-Core | Memory |
1.4GHz Dual-Core Intel i5 | 3030 | 5425 | 4GB |
3.0GHz Dual-Core Intel i7 | 3702 | 7050 | 16GB |
CPU | Geekbench 1-Core | Geekbench Multi-Core | Memory |
3.6GHz Quad-Core i3 | 4684 | 13985 | 16-64GB |
3.0GHz Hex-Core i5 | 5160 | 20358 | 16-64GB |
3.2GHz Hex-Core i7 | 5666 | 24329 | 16-64GB |