IMac (Intel-based)
Specifications of Unibody iMacs from 2009 through 2012

IMac (Intel-based)

Section Title: Specifications of Unibody iMacs from 2009 through 2012
Table Section Text: None

Component / processor model	Intel Core 2 Duo, Core i5, and Core i7	Intel Core i3, Core i5, and Core i7	Core i5, and Core i7	Intel Core i3

Model	Late 2009	Mid 2010	Mid 2011	Late 2011 (education only)

Release date	October 20, 2009	July 27, 2010	May 3, 2011	August 8, 2011

Marketing model no.	MB950xx/A	MC413xx/A	MB952xx/A	MB953xx/A	MC508xx/A	MC509xx/A	MC510xx/A	MC511xx/A	MC309xx/A	MC812xx/A	MC813xx/A	MC814xx/A	MC978xx/A

Model number	A1311	A1312	A1311	A1312	A1311	A1312	A1311

Model identifier	iMac10,1	iMac11,1	iMac11,2	iMac11,3	iMac12,1	iMac12,2	iMac12,1

EMC no.	2308	2309	2374	2389	2390	2428	2429	2496

Enclosure	Aluminum and glass

Display	21.5 in (550 mm), 1920 × 1080	27 in (690 mm), 2560 × 1440	21.5 in (550 mm), 1920 × 1080	27 in (690 mm), 2560 × 1440	21.5 in (550 mm), 1920 × 1080	27 in (690 mm), 2560 × 1440	21.5 in (550 mm), 1920 × 1080

Glossy glass-covered widescreen 16:9, LED backlighting and IPS technology

Processor	3.06 GHz (E7600 "Wolfdale-3M") Intel Core 2 Duo 3 MB L2 cache	2.66 GHz quad-core (Turbo Boost up to 3.2 GHz) (750 "Lynnfield") Intel Core i5 8 MB L3 cache	3.06 GHz dual-core (540 "Clarkdale") Intel Core i3 4 MB L3 cache	3.2 GHz Dual-Core (550 "Clarkdale") Intel Core i3 4 MB L3 cache	2.8 GHz quad-core (Turbo Boost up to 3.33 GHz) (760 "Lynnfield") Intel Core i5 8 MB L3 cache	2.5 GHz quad-core (Turbo Boost up to 3.3 GHz) (2400S "Sandy Bridge") Intel Core i5 6 MB L3 cache	2.7 GHz quad-core (Turbo Boost up to 3.7 GHz) (2500S "Sandy Bridge") Intel Core i5 6 MB L3 cache	3.1 GHz quad-core (Turbo Boost up to 3.4 GHz) (2400 "Sandy Bridge") Intel Core i5 6 MB L3 cache	3.1 GHz dual-core (2100 "Sandy Bridge") 3 MB L3 cache

Optional: 3.33 GHz (E8600 "Wolfdale") Intel Core 2 Duo 6 MB L2 cache	Optional: 2.8 GHz quad-core (Turbo Boost up to 3.46 GHz) (860) Intel Core i7	Optional: 3.2 GHz dual-Core (550) Intel Core i3 or 3.6 GHz (680 "Clarkdale") Intel Core i5	Optional: 3.6 GHz dual-core (Turbo Boost up to 3.86 GHz) (680 "Clarkdale") Intel Core i5	Optional: 2.93 GHz quad-core (Turbo Boost up to 3.6 GHz) (870) Intel Core i7	N/A	Optional: 2.8 GHz quad-core (Turbo Boost up to 3.8 GHz) (2600S) Intel Core i7	N/A	Optional: 3.4 GHz quad-core (Turbo Boost up to 3.8 GHz) (2600) Intel Core i7	N/A

System bus	Front side bus	Intel Direct Media Interface

1066 MHz Optional: 1333 MHz with 3.33 GHz Core 2 Duo option	2.5 GT/s

Memory	4 GB (two 2 GB, two slots empty) Optional: 16 GB	4 GB (two 2 GB, two slots empty) Expandable to 32 GB (16 GB supported by Apple)	2 GB (one 2 GB) Optional: 8 GB

1066 MHz PC3-8500 DDR3 SO-DIMM SDRAM	1066 MHz PC3-8500 DDR3 SO-DIMM SDRAM (Upgradable to 1333 MHz PC3-10600 DDR3 SO-DIMM SDRAM)	1333 MHz PC3-10600 DDR3 SO-DIMM SDRAM

Video card	nVidia GeForce 9400M with 256 MB shared memory	ATi Radeon HD 4670 with 256 MB of GDDR3 SDRAM	ATi Radeon HD 4850 with 512 MB of GDDR3 SDRAM	ATi Radeon HD 4670 with 256 MB of GDDR3 SDRAM	ATi Radeon HD 5670 with 512 MB of GDDR3 SDRAM	ATi Radeon HD 5750 with 1 GB of GDDR5 SDRAM	AMD Radeon HD 6750M with 512 MB of GDDR5 SDRAM	AMD Radeon HD 6770M with 512 MB of GDDR5 SDRAM	AMD Radeon HD 6970M with 1 GB of GDDR5 SDRAM	AMD Radeon HD 6750M with 256 MB of GDDR5 SDRAM

Optional: with 2 GB GDDR5 SDRAM

Storage / Hard drive	500 GB Optional: 1 TB or 2 TB	1 TB Optional: 2 TB	500 GB Optional: 1 TB or 2 TB	1 TB Optional: 2 TB	1 TB Optional: 2 TB and/or 256 GB SSD	500 GB	1 TB Optional: 2 TB and/or 256 GB SSD	250 GB

Serial ATA 7200 rpm

Optical drive	8× double-layer SuperDrive (DVD±R DL/DVD±RW/CD-RW)

Connectivity	Internal AirPort Extreme 802.11a/b/g/n Gigabit Ethernet Built-in infrared (IR) receiver for Apple Remote Bluetooth 2.1 + EDR	Internal AirPort Extreme 802.11a/b/g/n Gigabit Ethernet Built-in infrared (IR) receiver for Apple Remote

Camera	iSight camera (640 × 480, 0.3 MP)	FaceTime HD camera 720p (1280 × 720, 0.9 MP)

Video out	Mini DisplayPort Mini DisplayPort to VGA, DVI, HDMI and DisplayPort adapters available

Peripherals	4× USB 2.0 1× Firewire 800 SD card slot Headphone/digital audio output Audio line-in/digital audio input	4× USB 2.0 1× Firewire 800 SDXC card slot Headphone/digital audio output Audio line-in/digital audio input	4× USB 2.0 1× Firewire 800 SDXC card slot Headphone/digital audio output Audio line-in/digital audio input 1x Thunderbolt port (21.5 in (550 mm)) 2x Thunderbolt ports (27 in (690 mm))

Latest possible operating system	macOS 10.13 High Sierra Unofficially, can run MacOS 10.14 Mojave with Mojave Patcher

Sentence(s)

In October 2009, a 16:9 aspect ratio screen was introduced in 21.5" and 27" IMac models.

final_sentence: In October 2009, a 16:9 aspect ratio screen was introduced in 21.5" and 27" IMac models.