Comparison Page
 
New
iMac 21.5-inch
New
iMac 21.5-inch with Retina display
 
New
iMac 27-inch with Retina display
iMac
21.5-inch
 
iMac
21.5-inch
with Retina display
iMac
27-inch
with Retina display
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Display1
Display121.5-inch display21.5-inch Retina 4K display Display127-inch Retina 5K display
 1920-by-1080 resolution4096-by-2304 resolution 5120-by-2880 resolution
  500 nits brightness 500 nits brightness
Processor
ProcessorDual-core Intel Core i5Quad-core Intel Core i5 ProcessorQuad-core Intel Core i5
Memory
Memory8GB8GB Memory8GB
Storage2
Storage21TB hard drive1TB hard drive
or 1TB Fusion Drive
Storage21TB or 2TB Fusion Drive
Graphics
GraphicsIntel Iris Plus Graphics 640Radeon Pro 555 or 560 GraphicsRadeon Pro 570, 575, or 580
Wireless
Wireless802.11ac Wi-Fi802.11ac Wi-Fi Wireless802.11ac Wi-Fi
 Bluetooth 4.2Bluetooth 4.2 Bluetooth 4.2
Connections and Expansion
Connections and ExpansionTwo Thunderbolt 3
(USB-C) ports
Two Thunderbolt 3
(USB-C) ports
Connections and ExpansionTwo Thunderbolt 3
(USB-C) ports
Four USB 3 portsFour USB 3 ports Four USB 3 ports
 SDXC card slotSDXC card slot SDXC card slot
Camera
CameraFaceTime HD cameraFaceTime HD camera CameraFaceTime HD camera
Keyboard and Mouse
Keyboard and Mouse    Magic KeyboardMagic Keyboard Keyboard and MouseMagic Keyboard
Magic Mouse 2Magic Mouse 2 Magic Mouse 2
 
New
iMac 27-inch with Retina display
 
iMac
27-inch
with Retina display
Buy Now Learn More
Display1
Display127-inch Retina 5K display
 5120-by-2880 resolution
 500 nits brightness
Processor
ProcessorQuad-core Intel Core i5
Memory
Memory8GB
Storage2
Storage21TB or 2TB Fusion Drive
Graphics
GraphicsRadeon Pro 570, 575, or 580
Wireless
Wireless802.11ac Wi-Fi
 Bluetooth 4.2
Connections and Expansion
Connections and ExpansionTwo Thunderbolt 3
(USB-C) ports
 Four USB 3 ports
 SDXC card slot
Camera
CameraFaceTime HD camera
Keyboard and Mouse
Keyboard and MouseMagic Keyboard
 Magic Mouse 2