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All-in-One · 2009ObsoleteUncommon · 60
iMac 27″ (Late 2009)
A1312 · Unibody iMac (2009-2011)
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Identifiers
| Order number | A1312 |
| Machine IDs | iMac10,1, iMac11,1 |
Reference
| Original price | $1,699 – $3,649 |
| Announced | 2009-10-20 |
| Discontinued | 2010-07-27 |
| Max supported OS | macOS 10.13 High Sierra |
| Design era | Unibody iMac (2009-2011) |
Configurations
| Colors | Anodized aluminum |
| CPU | Intel Core 2 Duo E8600 @ 3.06 GHz, Intel Core i5-750 @ 2.66 GHz, Intel Core i7-860 @ 2.8 GHz |
| Memory | 4 GB, 8 GB, 16 GB (max) |
| Storage | 1 TB SATA HDD, 2 TB SATA HDD |
| Graphics | ATI Radeon HD 4670 (256 MB), ATI Radeon HD 4850 (512 MB) |
| Display | 27″ LED (2560×1440) |
| Operating system | Mac OS X 10.6.1, macOS 10.13 High Sierra |
| Removable media | SuperDrive (DVD±R DL, slot-loading) |
Physical
| Ports & connectivity | 4× USB 2.0 · 1× FireWire 800 · 10/100/1000 Ethernet · 3.5mm headphone · 3.5mm audio in · Mini DisplayPort (target display mode) · SDXC card slot · Built-in iSight |
| Dimensions (W×H×D) | 651 × 516 × 207 mm |
| Weight | 13.8 kg |
Known quirks
- 27" 2560×1440 display was stunning at launch — still usable as secondary monitor
- First iMac with Core i5/i7 — quad-core option
- 4850 GPU failures after years of use are documented
- Can act as external display for DisplayPort sources via TDM