iMac 20" (Mid 2007) vs iMac 27" (Late 2009)
iMac 20"
(Mid 2007)
iMac 27"
(Late 2009)
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Base Price
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Base Price
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CPU
Core 2 Duo T7300
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CPU
Core 2 Duo E7600
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GPU
Radeon HD 2400 XT Mac MXM
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GPU
Radeon HD 4670 Mac
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Memory
1GB
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Memory
4GB
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Storage
250GB
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Storage
1TB
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Display
20" LCD TN 1680x1050 -
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Display
27" LCD IPS 2560x1440 -
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GB6S 220
6%
GB6M 360
2%
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GB6S 370
10%
GB6M 620
3%
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N/A
0%
FP32 0.05 TFLOPS
0%
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N/A
0%
FP32 0.44 TFLOPS
1%
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1GB
DDR2-667
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4GB
DDR3-1066
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Unknown # Tabs
0%
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8 Tabs
2%
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250GB
3.5"
SATA 2
7200RPM
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1TB
3.5"
SATA 2
7200RPM
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430 min 4K Video
11%
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1,930 min 4K Video
48%
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8x SuperDrive DL
Slot Loading
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8x SuperDrive DL
Slot Loading
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20"
LCD TN
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27"
LCD IPS
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290 Nits
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375 Nits
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60Hz
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60Hz
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1680x1050
1.8 Million Pixels
99 PPI
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2560x1440
3.7 Million Pixels
109 PPI
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CCFL 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 Keyboard with Numeric Keypad
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Apple Wireless Keyboard
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Mighty Mouse
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Magic Mouse
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Apple Remote
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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)
2 Stream
Up to 300Mbps
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Bluetooth 2.0
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Bluetooth 2.1
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Infrared
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No Sensors
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No Sensors
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PM965
ICH8M
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X48
ICH9
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Data
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3x USB 2.0 (480Mbps)
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1x FireWire 400
1x FireWire 800
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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-DVI
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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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200W
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365W
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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 10.4 Tiger
Windows
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Mac OS X 10.6 Snow Leopard
Windows
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OS X 10.11 El Capitan (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
470 mm (18.5 in)
Width
485 mm (19.1 in)
Depth
188 mm (7.4 in)
Volume
42.85 L
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Height
518 mm (20.4 in)
Width
650 mm (25.6 in)
Depth
207 mm (8.1 in)
Volume
69.75 L
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Weight
9.072 kg (20 lb)
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Weight
13.835 kg (30.5 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
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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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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