Display & VisualsScreen Size: 21.5-inch (diagonal) LED-backlit IPS displayResolution: Full HD ($1920 \times 1080$ pixels) at 16:9 aspect ratioPanel Quality: sRGB color support, anti-reflective coating, $178^\circ$ wide viewing anglesProcessor & GraphicsProcessor (CPU): 7th-Gen Intel Core i5 Dual-Core @ 2.3GHz (Turbo Boost up to 3.6GHz)Graphics (GPU): Integrated Intel Iris Plus Graphics 640Memory & StorageRAM: 8 GB or 16 GB 2133 MHz DDR4 onboard memory (soldered, non-user upgradeable)Storage Options: 1 TB HDD (5400-rpm), 1 TB Fusion Drive, or 256 GB / 512 GB PCIe-based SSD2. Retina 4K Display ModelDisplay & VisualsScreen Size: 21.5-inch (diagonal) Retina 4K displayResolution: $4096 \times 2304$ pixels with support for 1 billion colorsBrightness & Color: 500 nits brightness, Wide Color (P3) gamutProcessor & GraphicsProcessor (CPU): 7th-Gen Intel Core i5 Quad-Core @ 3.0GHz / 3.4GHz (Turbo Boost up to 3.8GHz) — Configurable to 3.6GHz Quad-Core Core i7Graphics (GPU): AMD Radeon Pro 555 (2 GB GDDR5) or Radeon Pro 560 (4 GB GDDR5)Memory & StorageRAM: 8 GB or 16 GB 2400 MHz DDR4 onboard memoryStorage Options: 1 TB HDD (5400-rpm), 1 TB Fusion Drive, or PCIe-based SSD (256 GB / 512 GB / 1 TB)