iMac 21.5" (Early 2019) vs iMac 27" (Early 2019)
iMac 21.5"
(Early 2019)
iMac 27"
(Early 2019)
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Base Price
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Base Price
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CPU
Core i3-8100
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CPU
Core i5-8500
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GPU
Radeon Pro 555X
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GPU
Radeon Pro 570X
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Memory
8GB
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Memory
8GB
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Storage
0GB + 1TB
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Storage
256GB
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Display
21.5" LCD IPS 4096x2304 -
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Display
27" LCD IPS 5120x2880 -
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GB6S 1,265
34%
GB6M 3,460
14%
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GB6S 1,395
37%
GB6M 4,865
20%
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N/A
0%
FP32 1.39 TFLOPS
3%
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N/A
0%
FP32 7.92 TFLOPS
16%
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8GB
DDR4-2666
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8GB
DDR4-2666
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24 Tabs
5%
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24 Tabs
5%
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0GB + 1TB
2.5"
SATA 3
5400RPM
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256GB
Soldered
PCIe 3.0 x4
Up to 2.8GB/s Read
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1,930 min 4K Video
48%
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442 min 4K Video
11%
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No Optical Drive
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No Optical Drive
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21.5"
LCD IPS
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27"
LCD IPS
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500 Nits
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500 Nits
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60Hz
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60Hz
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4096x2304
9.4 Million Pixels
219 PPI
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5120x2880
14.7 Million Pixels
218 PPI
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LED Backlight
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1,100:1 Contrast
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LED Backlight
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1,100:1 Contrast
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720p
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720p
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Magic Keyboard
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Magic Keyboard
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Magic Mouse 2
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Magic Mouse 2
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Not Included
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Not Included
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Not Included
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Not Included
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No Biometrics
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No Biometrics
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2
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2
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2
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3
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No Cellular
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No Cellular
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Wi-Fi 5 (802.11ac)
3 Stream
Up to 1300Mbps
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Wi-Fi 5 (802.11ac)
3 Stream
Up to 1300Mbps
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Bluetooth 4.2
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Bluetooth 4.2
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No Sensors
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No Sensors
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Z270
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Z270
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Data
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4x USB 3.0 (5Gbps)
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2x Thunderbolt 3 (40Gbps)
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Data
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4x USB 3.0 (5Gbps)
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2x Thunderbolt 3 (40Gbps)
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Network
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1x Ethernet (1Gbps)
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Network
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1x Ethernet (1Gbps)
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Audio
1x Audio Jack
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Audio
1x Audio Jack
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Card
1x SDXC Card UHS-II
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Card
1x SDXC Card UHS-II
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185W
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310W
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Not Included
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Not Included
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No Battery
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No Battery
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macOS 10.14 Mojave
Windows
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macOS 10.14 Mojave
Windows
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Windows 10 (Latest)
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Windows 10 (Latest)
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Build Material
Aluminum
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Build Material
Aluminum
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Height
450 mm (17.7 in)
Width
528 mm (20.8 in)
Depth
175 mm (6.9 in)
Volume
41.63 L
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Height
516 mm (20.3 in)
Width
650 mm (25.6 in)
Depth
203 mm (8 in)
Volume
68.13 L
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Weight
5.579 kg (12.3 lb)
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Weight
9.435 kg (20.8 lb)
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CPU
Upgradable
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CPU
Upgradable
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GPU
Not Upgradable
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GPU
Not Upgradable
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Memory
Upgradable
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Memory
Upgradable
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Storage
Upgradable
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Storage
Upgradable
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Wi-Fi
Upgradable
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Wi-Fi
Not Upgradable
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Motherboard
Not Upgradable
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Motherboard
Not Upgradable
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Power Supply
Not Upgradable
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Power Supply
Not Upgradable
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Storage Slots
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1x 2.5" Bay
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Memory Slots
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2x SO-DIMM
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Memory Slots
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4x SO-DIMM
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