iMac 20-inch Mid 2009 Datasheet

iMac Aluminum
Source: apple.com – iMac Aluminum

The Apple iMac 20-inch Mid 2009 is a personal computer designed, manufactured, and sold by Apple from 2009 to 2012 as part of the iMac series. The computer was introduced on April 7, 2009, and its price started at $899.

The new iMac features a 2 GHz or 2.26 GHz Intel Core 2 Duo processor, 1 GB or 2 GB of RAM, 20-inch LCD TFT Display, 160 GB hard drive, slot-loading 8x DVD-R/CD-RW dual-layer “SuperDrive”, Ambient Light Sensor, iSight camera, USB 2.0 ports, and 128 MB NVIDIA GeForce 9400M graphics in the base model.

This model of iMac was available for sale to educational institutions only.

This iMac has been discontinued on March 7, 2012. Today iMac 20-inch Mid 2009 is 15 years old!

iMac 20-inch Mid 2009 Details

IntroducedApril 7, 2009 (2 GHz) – 15 years ago
March 4, 2010 (2.26 GHz) – 14 years ago
DiscontinuedMarch 4, 2010 (2 GHz) – 14 years ago
March 7, 2012 (2.26 GHz) – 12 years ago
Last Software UpdateOctober 18, 2016 – 7 years ago
Time on the Market35 months (2 years)
Time of Support90 months (7 years)
Model IdentifieriMac9,1
Model NumberA1224
Order NumberMC015LL/A
Original Price$899
Weight20 Ibs.
9.071 KG
Dimensions18.5” H x 19.1” W x 7.4” D
47 cm H x 48.51 cm W x 18.79 cm D

iMac Mid 2009 Tech Specs


ProcessorIntel Core 2 Duo P7350 “Penryn” (2 GHz)
Intel Core 2 Duo P7550 “Penryn” (2.26 GHz)
Processor Speed2 GHz
2.26 GHz
Number of Cores2
System Bus1066 MHz
Cache3 MB shared L2 at full processor speed

Storage & Media

Storage160 GB
320 GB
Media1 – 8x DVD-R/CD-RW dual-layer “SuperDrive” slot-loading drive


Built-in Memory1 GB
2 GB
Maximum Memory8 GB
Memory Slots2 – PC3-8500 204-pin DDR3 SO-DIMM 1066 MHz
Interleaving SupportYes


Built-in Display20″ TFT LCD glossy widescreen Display
Brightness290 cd/m²
Resolutions640 x 480
800 x 500
800 x 600
840 x 524
1024 x 640
1024 x 768
1280 x 800
1344 x 840
1680 x 1050 (Native)


Graphics CardNVIDIA GeForce 9400M
Graphics Memory128 MB GDDR3 SDRAM shared with main memory*
Display Connection1 – Mini DisplayPort (VGA, DVI or dual-link DVI with adapter)
Display ModesDual display extended and video mirroring
External ResolutionUp to 2560 x 1600 pixels
*Minimum graphics memory usage is 128 MB


Expansion SlotsNone
Optical Drive InterfaceUnknown
Hard Drive Interface3 Gbps Serial ATA (SATA)


Ethernet10/100/1000BASE-T (RJ-45 – support for jumbo frames)
Wi-FiAirPort Extreme Card 802.11a/b/g/n
USB4 – 480 Mbps (USB 2.0)
FireWire1 – 800 Mbps
Audio In1 – 3.5-mm analog/optical combo jack
1 – Built-in microphone
Audio Out1 – 3.5-mm analog/optical combo jack
2 – Built-in speakers
Display1 – Mini DisplayPort (VGA, DVI or dual-link DVI with adapter)

Keyboard and Mouse

PeripheralsApple Aluminum Keyboard
Apple Mighty Mouse


Original OSMac OS X 10.5.6
Later OSMac OS X 10.6
Maximum OSOS X 10.11.6
FirmwareIntel Extensible Firmware Interface
Bundled SoftwareMac OS X 10.5
iLife ’09 (includes iPhoto, iMovie, iDVD, iWeb, GarageBand)


Backup Battery3 V CR2032 Lithium
Maximum Continuous Power200 W
Line Voltage100-240 V AC

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Disclaimer: The data presented in this article is under continuous development and has been manually collected from various sources based on their availability. The author of this article may revise this dataset as additional research is conducted and reviewed. Please note that the information is provided “as is” and “as available” without express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the published information. Any warranties relating to this information are hereby disclaimed.