Display Retina 4.5K | M4-Chip(CPU:8-core&GPU:8-core) | RAM:16GB | Storage:256GB Display Retina 4.5K | M4-Chip(CPU:10-core&GPU:10-core) | RAM:16GB | Storage:256GB Display Retina 4.5K | M4-Chip(CPU:10-core&GPU:10-core) | RAM:16GB | Storage:512GB Display Retina 4.5K | M4-Chip(CPU:10-core&GPU:10-core) | RAM:24GB | Storage:512GB Display Retina 4.5K-Nano-Texture Glass | M4-Chip(CPU:10-core&GPU:10-core) | RAM:16GB | Storage:256GB