iMac 21.5" (Late 2009) vs iMac 21.5" (Mid 2011)
iMac 21.5"
(Late 2009)
iMac 21.5"
(Mid 2011)
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Base Price
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Base Price
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CPU
Core 2 Duo E7600
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CPU
Core i5-2400S
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GPU
GeForce 9400M
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GPU
Radeon HD 6750M Mac+ MXM
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Memory
4GB
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Memory
4GB
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Storage
500GB
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Storage
256GB
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Display
21.5" LCD IPS 1920x1080 -
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Display
21.5" LCD IPS 1920x1080 -
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GB6S 370
10%
GB6M 620
3%
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GB6S 530
14%
GB6M 1,550
6%
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N/A
0%
FP32 0.04 TFLOPS
0%
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N/A
0%
FP32 0.57 TFLOPS
1%
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4GB
DDR3-1066
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4GB
DDR3-1333
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8 Tabs
2%
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8 Tabs
2%
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500GB
3.5"
SATA 2
7200RPM
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256GB
2.5"
SATA 2
Up to 190MB/s Read
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930 min 4K Video
23%
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442 min 4K Video
11%
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8x SuperDrive DL
Slot Loading
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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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300 Nits
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300 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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1920x1080
2.1 Million Pixels
102 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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480p
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480p
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Apple Wireless Keyboard
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Apple Wireless Keyboard
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Magic Mouse
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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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1
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1
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No Cellular
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No Cellular
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Wi-Fi 4E (802.11n)
2 Stream
Up to 300Mbps
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Wi-Fi 4E (802.11n)
3 Stream
Up to 450Mbps
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Bluetooth 2.1
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Bluetooth 2.1
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No Sensors
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No Sensors
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X48
ICH9
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Z68
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Data
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4x USB 2.0 (480Mbps)
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Data
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4x USB 2.0 (480Mbps)
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1x 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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Video
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1x mini-DisplayPort 1.1
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Audio
2x Audio Jack
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Audio
2x Audio Jack
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Card
1x SDHC Card
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Card
1x SDXC Card
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205W
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205W
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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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Mac OS X 10.6 Snow Leopard
Windows
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Mac OS X 10.6 Snow Leopard
Windows
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macOS 10.13 High Sierra (Latest)
Windows 7 (Latest)
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macOS 10.13 High Sierra (Latest)
Windows 7 (Latest)
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Build Material
Aluminum
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Build Material
Aluminum
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Height
451 mm (17.8 in)
Width
528 mm (20.8 in)
Depth
188 mm (7.4 in)
Volume
44.89 L
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Height
451 mm (17.8 in)
Width
528 mm (20.8 in)
Depth
188 mm (7.4 in)
Volume
44.89 L
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Weight
9.299 kg (20.5 lb)
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Weight
9.299 kg (20.5 lb)
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CPU
Upgradable
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CPU
Upgradable
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GPU
Upgradable
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GPU
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
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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Memory Slots
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4x SO-DIMM
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Memory Slots
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4x SO-DIMM
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