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# iMac (Late 2009)

Essentials

Family: iMac/eMac

Codename: ?

Gestalt ID: 406

Minimum OS: 10.6.1

Maximum OS: 10.10.4

Introduced: October 2009

Terminated: July 2010

Processor

CPU: Intel Core 2 Duo (E8xxx)

CPU Speed: 3.06 GHz or quad-core 2.66 GHz Core-i5

CPU Cores: 2

FPU: integrated

Bus Speed: 1066 MHz

Register Width: 64-bit

Data Bus Width: 64-bit

Address Bus Width: 64-bit

Level 1 Cache: 32 kB data, 32 kB instruction

Level 2 Cache: 6 MB on-processor

ROM: EFI

RAM Type: PC3-8500 DDR3 SDRAM

Minimum RAM Speed: 1066 MHz

RAM slots: 4

Maximum RAM: 16 GB

Expansion Slots: SD card

Video

Screen: 21.5/27" LED-backlit TFT

GPU: ATI Radeon HD 4670

VRAM: 256 MB GDDR3

Max Resolution: 1920x1200/2560x1440

Video Out: Mini DisplayPort

Camera: iSight

Storage

Hard Drive: 500/1 TB 7200 RPM

ATA Bus: Serial-ATA

Optical Drive: 24x/24x/16x/8x/8x/6x/4x CD-RW/DVD±RW/DVD±R DL

Input/Output

USB: 4 2.0

Firewire800: 1

Audio Out: stereo 24 bit mini, Optical S/PDIF, HDMI via Mini DIsplayPort

Audio In: stereo 24 bit mini, Optical S/PDIF

Speaker: stereo

Microphone: mono

Networking

Ethernet: 10/100/1000Base-T

Wi-Fi: 802.11a/b/g/n

Bluetooth: 2.1+EDR

Miscellaneous

Power: 241 Watts

Dimensions: 17.75" H x 20.8" W x 7.42" D

Weight: 20.5 lbs.

Notes

The low-end 21.5" model used the NVIDIA GeForce 9400M graphics chipset, which used a portion of main memory as VRAM. Though reported as a 256 MB graphics system, the chipset actually used up to 272 MB of RAM. The 27" models weighed 30.5 pounds, consumed 365 watts of power, and had the following dimensions: 20.4" H x 25.6" W x 8.15" D. The high-end 27-inch model had an 2.66 GHz Intel Core i5 processor (or 2.8 GHz Core i7), with four cores, 256 kB L2 cache per core, and an 8 MB L3 cache, included an ATI Radeon HD 4850 graphics chipset with 512MB of GDDR3 memory, and could be used as a monitor via the mini DisplayPort.

Introduced in October 2009, the iMac (Late 2009) models had larger screens an d faster processors than the previous iMac (Early 2009) line. The iMac (Late 2009) shipped in 4 configurations: 21.5"/3.06 GHz/4 GB RAM/500 GB HD/256 MB shared VRAM/$1199, 21.5"/3.06 GHz/4 GB RAM/1 TB HD/256 MB VRAM/$1499, 27"/3.06 GHz/4 GB RAM/1 TB HD/256 MB VRAM/$1699, and 27"/2.66 GHz Core i5/4 GB RAM/1 TB HD/512 MB VRAM/$1999. Built-to-order options included up to 16 GB of RAM and a 2.8 GHz Intel Core i7 quad-core processor. Some customers who purchased the 27-inch models complained of screen flickering problems, which were reportedly fixed after several firmware updates.

Picture Credits:
Apple, Inc.