iMac · 2009 – 2010

iMac (27-inch, Late 2009)

Model A1312 EMC 2309EMC 2374 iMac10,1iMac11,1

Last update: macOS 10.13.6 High Sierra 21.5-inch A1311 also offered

Specifications

Released: 20 Oct 2009
Discontinued: 27 Jul 2010
Processor: Intel Core 2 Duo / Core i5 / Core i7, 3.06 GHz
Architecture: Intel (64-bit)
Graphics: ATI Radeon HD 4670
Memory: 4 GB (up to 16 GB)
Storage: 1TB HDD
Display: 27-inch, 2560 × 1440
Shipped with: Mac OS X 10.6.1
Newest macOS: macOS 10.13.6 High Sierra
Launch price: $1,699 (US, base model)

Base configuration at launch. Built-to-order Macs can have a faster chip, more memory or more storage.

Numbers printed on this Mac

Number	What it is
A1312	Model number, on the underside or the back
EMC 2309	EMC number — Core 2 Duo (iMac10,1)	Reported
EMC 2374	EMC number — Core i5 / Core i7 (iMac11,1)	Reported
iMac10,1	Model identifier, in System Information
iMac11,1	Model identifier, in System Information

Configurations

iMac "Core i5" 2.66 27" (Late 2009)

2.66 GHz Core i5 (I5-750)

Order number: MB953LL/A
Model number: A1312 · EMC 2374
Identifier: iMac11,1
Memory: 4 GB
Graphics memory: 512 MB
Storage: 1 TB HDD
Optical drive: 8X DL "SuperDrive"
Sold: 20 Oct 2009 – 27 Jul 2010

iMac "Core i7" 2.8 27" (Late 2009)

2.8 GHz Core i7 (I7-860)

Order number: MC507LL/A
Model number: A1312 · EMC 2374
Identifier: iMac11,1
Memory: 4 GB
Graphics memory: 512 MB
Storage: 1 TB HDD
Optical drive: 8X DL "SuperDrive"
Sold: 20 Oct 2009 – 27 Jul 2010

iMac "Core 2 Duo" 3.06 27" (Late 2009)

3.06 GHz Core 2 Duo (E7600)

Order number: MB952LL/A
Model number: A1312 · EMC 2309
Identifier: iMac10,1
Memory: 4 GB
Graphics memory: 256 MB
Storage: 1 TB HDD
Optical drive: 8X DL "SuperDrive"
Sold: 20 Oct 2009 – 27 Jul 2010