iMac 27 (Mid 2017) vs iMac 21.5 (Late 2015)
iMac 27
(Mid 2017)
$1,799
iMac 21.5
(Late 2015)
$1,099
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Base Price (MSRP)
$1,799
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Base Price (MSRP)
$1,099
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CPU
Core i5-7500
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CPU
Core i5-5250U
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GPU
Radeon Pro 570
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GPU
HD 6000 950MHz
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Memory
8GB
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Memory
8GB
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Storage
128GB
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Storage
128GB
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Display
27" LCD IPS 5120×2880
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Display
21.5" LCD IPS 1920×1080
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N/A
0%
3.96 TFLOPS FP32
8%
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N/A
0%
730 GFLOPS FP32
1%
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8GB
DDR4-2133
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8GB
DDR3-1866
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24 Tabs
5%
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24 Tabs
5%
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128GB
Proprietary Apple 12+16 Pin
PCIe 3.0 x4
Up to 1.4GB/s
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128GB
Proprietary Apple 12+16 Pin
PCIe 3.0 x4
Up to 1.3GB/s
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186 min 4K Video
5%
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186 min 4K Video
5%
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No Optical Drive
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No Optical Drive
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27"
LCD IPS
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21.5"
LCD IPS
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Area
311.5 in² (2009.7 cm²)
16:9 Aspect Ratio
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Area
197.5 in² (1274.3 cm²)
16:9 Aspect Ratio
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Brightness
500 Nits
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Brightness
350 Nits
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Refresh Rate
60Hz
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Refresh Rate
60Hz
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Response Time
27ms GtG
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Flicker
23000Hz
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Resolution
5120×2880
14.7 Million Pixels
218 PPI
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Resolution
1920×1080
2.1 Million Pixels
102 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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1,000:1 Contrast
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Viewing Angles
178° Horizontal
178° Vertical
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Viewing Angles
178° Horizontal
178° Vertical
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Colour Depth
10-bit
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Colour Depth
8-bit
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Coverage
100% sRGB
99% DCI-P3
88% Adobe RGB
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Coverage
100% sRGB
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Accuracy
dE 1.4 Avg
dE 2.6 Max
dE 2.20 Greyscale
2.32 Gamma
6830K
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Coating
Glossy Anti-Reflective
Fully Laminated
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Coating
Glossy Anti-Reflective
Fully Laminated
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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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2
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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 4.0
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No Sensors
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No Sensors
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Z170
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Z87
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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 2 (20Gbps)
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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
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310W
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185W
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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 10.12 Sierra
Windows
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OS X 10.11 El Capitan
Windows
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macOS 13 Ventura (Latest)
Windows 10 (Latest)
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macOS 12 Monterey (Latest)
Windows 10 (Latest)
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Build Material
Aluminum
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Build Material
Aluminum
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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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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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Weight
9.435 kg (20.8 lb)
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Weight
5.67 kg (12.5 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
Not Upgradable
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Wi-Fi
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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4x SO-DIMM
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Memory Slots
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2x SO-DIMM
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A1419
EMC 3070
iMac18,3
|
A1418
EMC 2889
iMac16,1
iMac16,2
|
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