iMac Retina 4K Details
- Display 21.5-inch Retina 4K (4096×2304) IPS display with Wide color
(P3) and ~500 nits brightness
- Processor Various Intel options:
- 3.0 GHz Quad-Core Intel Core i5 (Turbo Boost up to ~3.8-4.1 GHz)
- 3.6 GHz Quad-Core Intel Core i3 or 6-Core Intel Core i5 options
- Configurable to 3.2 GHz 6-Core Intel Core i7 on some models
- Memory 8 GB DDR4 (typical) — upgradeable to 16 GB or 32 GB on some
models
- Storage Options include:
- 256 GB SSD
- 512 GB SSD
- 1 TB Fusion Drive
- 1 TB hard drive (older model)
- Graphics Discrete GPUs such as:
- Radeon Pro 555/555X (2 GB GDDR5)
- Radeon Pro 560/560X (4 GB GDDR5)
- Configurable to Radeon Pro Vega 20 (4 GB HBM2) on select configs
- Camera FaceTime HD camera
- Ports Thunderbolt 3/USB-C (varies by year), USB-A, Ethernet, SDXC
slot (varies by model)
- Operating System Originally macOS (varies by release year)
- Dimensions All-in-One slim aluminium design
- Weight Approx ~5.7 kg (12.5 lb) depending on config
