iMac 21.5 (Late 2012) vs iMac 20 (Early 2009)

iMac 21.5 (Late 2012) $1,299
iMac 20 (Early 2009) $1,199
Base Price (MSRP)
$1,299
Base Price (MSRP)
$1,199
CPU
Core i5-3330S
CPU
Core 2 Duo E8135
GPU
GeForce GT 640M Mac
GPU
GeForce 9400M
Memory
8GB
Memory
2GB
Storage
128GB
Storage
320GB
Display
21.5" LCD IPS 1920×1080
Display
20" LCD TN 1680×1050

GB6 Single-Core

  • 61% faster vs iMac 20 (Early 2009)
  • 38% slower vs iMac 21.5 (Late 2012)
iMac 21.5 (Late 2012) - GB6S 540
x1.61
iMac 20 (Early 2009) - GB6S 335
x1

GB6 Multi-Core

  • 2.78x faster vs iMac 20 (Early 2009)
  • 64% slower vs iMac 21.5 (Late 2012)
iMac 21.5 (Late 2012) - GB6M 1,600
x2.78
iMac 20 (Early 2009) - GB6M 575
x1

FP32

  • 13.71x faster vs iMac 20 (Early 2009)
  • 93% slower vs iMac 21.5 (Late 2012)
iMac 21.5 (Late 2012) - 480 GFLOPS FP32
x13.71
iMac 20 (Early 2009) - 35 GFLOPS FP32
x1
CPU Image
Core i5-3330S
4 Cores
4 Threads
2.7GHz Clock
CPU Image
Core 2 Duo E8135
2 Cores
2 Threads
2.4GHz Clock
Core i5-3330S vs Core 2 Duo E8135 Full Specs Comparison
GPU Image
GeForce GT 640M Mac
384 Shaders
625MHz
512MB GDDR5
64GB/s Bandwidth
GPU Image
GeForce 9400M
16 Shaders
450MHz
Shared Memory
480 GFLOPS FP32
1%
35 GFLOPS FP32
0%
GeForce GT 640M Mac vs GeForce 9400M Full Specs Comparison
8GB
DDR3-1600
2GB
DDR3-1066
24 Tabs
5%
Unknown # Tabs
0%
128GB
Proprietary Apple 7+17 Pin
SATA 3
Up to 520MB/s
320GB
3.5"
SATA 2
-
186 min 4K Video
5%
570 min 4K Video
14%
No Optical Drive
8x SuperDrive DL
Slot Loading
21.5"
LCD IPS
20"
LCD TN
21.5"
20"
Area
197.5 in² (1274.3 cm²)
16:9 Aspect Ratio
Area
179.8 in² (1159.8 cm²)
16:10 Aspect Ratio
Brightness
350 Nits
Brightness
290 Nits
Refresh Rate
60Hz
Refresh Rate
60Hz
Resolution
1920×1080
2.1 Million Pixels
102 PPI
Resolution
1680×1050
1.8 Million Pixels
99 PPI
1920×1080
1680×1050
LED Backlight
1,000:1 Contrast
CCFL Backlight
1,000:1 Contrast
Viewing Angles
178° Horizontal
178° Vertical
Viewing Angles
160° Horizontal
160° Vertical
Colour Depth
8-bit
Colour Depth
8-bit
Coverage
100% sRGB
Coverage
100% sRGB
Coating
Glossy Anti-Reflective
Fully Laminated
-
-
-
1920×1080
1680×1050
720p
480p
Apple Wireless Keyboard
Apple Keyboard Al
Magic Mouse
Mighty Mouse
No Biometrics
No Biometrics
2
2
2
1
No Cellular
No Cellular
Wi-Fi 4E (802.11n)
3 Stream
Up to 450Mbps
Wi-Fi 4E (802.11n)
2 Stream
Up to 300Mbps
Bluetooth 4.0
Bluetooth 2.1
Z77
GeForce 9400M
Data
-
4x USB 3.0 (5Gbps)
-
2x Thunderbolt 1 (10Gbps)
Data
4x USB 2.0 (480Mbps)
-
1x FireWire 800
-
Network
1x Ethernet (1Gbps)
Network
1x Ethernet (1Gbps)
-
-
Video
1x mini-DisplayPort 1.1
Audio
1x Audio Jack
Audio
2x Audio Jack
Card
1x SDXC Card
-
-
185W
200W
OS X 10.8 Mountain Lion
Windows
Mac OS X 10.5 Leopard
Windows
macOS 10.15 Catalina (Latest)
Windows 10 (Latest)
OS X 10.11 El Capitan (Latest)
Windows 7 (Latest)
Build Material
Aluminum
Build Material
Aluminum
Height
450 mm (17.7 in)
Width
528 mm (20.8 in)
Depth
175 mm (6.9 in)
Volume
41.63 L
Height
470 mm (18.5 in)
Width
485 mm (19.1 in)
Depth
188 mm (7.4 in)
Volume
42.85 L
Weight
5.67 kg (12.5 lb)
Weight
9.072 kg (20 lb)
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
1x 2.5" Bay
-
-
Memory Slots
2x SO-DIMM
Memory Slots
2x SO-DIMM
A1418
EMC 2544
iMac13,1
A1224
EMC 2266
iMac9,1
Change Comparison