iMac 21.5" (Late 2015) vs iMac 27" (Late 2012)
iMac 21.5"
(Late 2015)
iMac 27"
(Late 2012)
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Base Price
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Base Price
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CPU
Core i5-5250U
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CPU
Core i5-3470S
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GPU
HD 6000 950MHz
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GPU
GeForce GTX 660M Mac
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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
21.5" LCD IPS 1920x1080 -
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Display
27" LCD IPS 2560x1440 -
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GB6S 815
22%
GB6M 1,565
7%
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GB6S 600
16%
GB6M 1,725
7%
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N/A
0%
FP32 0.73 TFLOPS
1%
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N/A
0%
FP32 0.73 TFLOPS
1%
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8GB
DDR3-1866
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8GB
DDR3-1600
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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 1.3GB/s Read
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128GB
Proprietary Apple 7+17 Pin
SATA 3
Up to 520MB/s Read
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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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21.5"
LCD IPS
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27"
LCD IPS
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350 Nits
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400 Nits
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60Hz
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60Hz
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1920x1080
2.1 Million Pixels
102 PPI
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2560x1440
3.7 Million Pixels
109 PPI
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LED Backlight
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1,000:1 Contrast
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LED Backlight
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1,000:1 Contrast
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720p
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720p
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Magic Keyboard
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Apple Wireless Keyboard
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Magic Mouse 2
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Magic Mouse
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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)
2 Stream
Up to 867Mbps
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Wi-Fi 4E (802.11n)
3 Stream
Up to 450Mbps
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Bluetooth 4.0
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Bluetooth 4.0
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No Sensors
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No Sensors
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9 Series U+
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Z77
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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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Data
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4x USB 3.0 (5Gbps)
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2x Thunderbolt 1 (10Gbps)
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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
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Card
1x SDXC Card
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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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OS X 10.11 El Capitan
Windows
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OS X 10.8 Mountain Lion
Windows
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macOS 12 Monterey (Latest)
Windows 10 (Latest)
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macOS 10.15 Catalina (Latest)
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
5.67 kg (12.5 lb)
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Weight
9.525 kg (21 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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