Apple iMac (Retina 4K, 21.5-inch, 2017)

Retina 4K display

21.5-inch (diagonal) Retina 4K display

4096-by-2304 resolution with support for one billion colors

500 nits brightness

Wide color (P3)

3.0GHz

• 3.0GHz quad‑core Intel Core i5 (Turbo Boost up to 3.5GHz)

• Configurable to 3.6GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GHz)

3.4GHz

• 3.4GHz quad-core Intel Core i5 (Turbo Boost up to 3.8GHz)

• Configurable to 3.6GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GHz)

3.0GHz

• 8GB of 2400MHz DDR4 memory

• Configurable to 16GB

3.4GHz

• 8GB of 2400MHz DDR4 memory

• Configurable to 16GB or 32GB

3.0GHz

• 1TB (5400-rpm) hard drive

• Configurable to 1TB Fusion Drive or 256GB or 512GB SSD

3.4GHz

• 1TB Fusion Drive

• Configurable to 256GB, 512GB, or 1TB SSD

3.0GHz

• Radeon Pro 555 with 2GB of VRAM

3.4GHz

• Radeon Pro 560 with 4GB of VRAM

FaceTime HD camera

Simultaneously supports full native resolution on the built-in display at millions of colors (21.5-inch) or 1 billion colors (21.5-inch 4K) and:

• One 5120‑by‑2880 (5K) external display at 60Hz with support for 1 billion colors, or

• Two 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or

• Two 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors

Thunderbolt 3 digital video output

Native DisplayPort output over USB‑C

Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately)

Stereo speakers

Microphone

3.5 mm headphone jack

• Support for Apple iPhone headset with microphone