iMac 21.5 (Retina 4K, Late 2015) vs iMac 21.5 (Late 2011)

iMac 21.5 (Retina 4K, Late 2015) $1,499
iMac 21.5 (Late 2011) $999
Base Price (MSRP)
$1,499
Base Price (MSRP)
$999
CPU
Core i5-5675R
CPU
Core i3-2100
GPU
Iris Pro 6200 1100MHz
GPU
Radeon HD 6750M Mac MXM
Memory
8GB
Memory
2GB
Storage
128GB
Storage
250GB
Display
21.5" LCD IPS 4096x2304 -
Display
21.5" LCD IPS 1920x1080 -
Core i5-5675R
4 Cores
4 Threads
3.1GHz Clock
Core i3-2100
2 Cores
4 Threads
3.1GHz Clock
GB6S 1,235
30%
GB6M 3,745
14%
GB6S 465
11%
GB6M 940
4%
Iris Pro 6200 1100MHz
384 Shaders
1100MHz
Shared Memory
Radeon HD 6750M Mac MXM
480 Shaders
598MHz
256MB GDDR5
50.8GB/s Bandwidth
N/A
0%
FP32 0.85 TFLOPS
2%
N/A
0%
FP32 0.57 TFLOPS
1%
8GB
DDR3-1866
2GB
DDR3-1333
24 Tabs
5%
Unknown # Tabs
0%
128GB
Proprietary Apple 12+16 Pin
PCIe 3.0 x4
Up to 1.3GB/s Read
250GB
3.5"
SATA 3
7200RPM
186 min 4K Video
5%
430 min 4K Video
11%
No Optical Drive
8x SuperDrive DL
Slot Loading
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21.5"
LCD IPS
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21.5"
LCD IPS
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400 Nits
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300 Nits
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60Hz
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60Hz
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4096x2304
9.4 Million Pixels
219 PPI
1920x1080
2.1 Million Pixels
102 PPI
LED Backlight
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1,100:1 Contrast
LED Backlight
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1,000:1 Contrast
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720p
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480p
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Magic Keyboard
Apple Wireless Keyboard
Magic Mouse 2
Magic Mouse
Not Included
Not Included
Not Included
Not Included
No Biometrics
No Biometrics
2
2
2
1
No Cellular
No Cellular
Wi-Fi 5 (802.11ac)
3 Stream
Up to 1300Mbps
Wi-Fi 4E (802.11n)
2 Stream
Up to 300Mbps
Bluetooth 4.0
No Bluetooth
No Sensors
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No Sensors
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Z87
Z68
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 2.0 (480Mbps)
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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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Video
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1x mini-DisplayPort 1.1
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Audio
1x Audio Jack
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Audio
2x Audio Jack
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Card
1x SDXC Card
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Card
1x SDXC Card
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185W
205W
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
Mac OS X 10.7 Lion
Windows
macOS 12 Monterey (Latest)
Windows 10 (Latest)
macOS 10.13 High Sierra (Latest)
Windows 7 (Latest)
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
Height
451 mm (17.8 in)
Width
528 mm (20.8 in)
Depth
188 mm (7.4 in)
Volume
44.89 L
Weight
5.67 kg (12.5 lb)
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Weight
9.299 kg (20.5 lb)
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CPU
Upgradable
CPU
Upgradable
GPU
Not Upgradable
GPU
Not Upgradable
Memory
Upgradable
Memory
Upgradable
Storage
Upgradable
Storage
Upgradable
Wi-Fi
Upgradable
Wi-Fi
Upgradable
Motherboard
Not Upgradable
Motherboard
Not Upgradable
Power Supply
Not Upgradable
Power Supply
Not Upgradable
Storage Slots
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1x 2.5" Bay
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Memory Slots
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2x SO-DIMM
Memory Slots
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4x SO-DIMM
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A1418
EMC 2833
iMac16,2
A1311
EMC 2496
iMac12,1
Change Comparison