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Mac, iPod, iPhone & iPad Specs - EveryMac.com's Ultimate Mac Comparison

EveryMac.com's Ultimate Mac Comparison makes it easy to dynamically compare all G3 and later Macs and all iPod, iPhone and iPad models side-by-side. Complete technical specifications are merely a click away.

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Current Macs
Intel Macs
G3, G4 & G5 Macs
G3 & Later Macs
iPod, iPhone, iPad
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Model
iMac i5 2.5 21.5 2011
iMac i5 2.7 21.5 2011
iMac i7 2.8 21.5 2011
 
Model Specs
Complete Specs
Complete Specs
Complete Specs
Model Ports
Complete Ports
Complete Ports
Complete Ports
Comparison Q&A
Comparison Q&A
Comparison Q&A
Comparison Q&A
Series Q&A
Series Q&A
Series Q&A
Series Q&A
PowerMax
Buy This Mac
Buy This Mac
Buy This Mac
OWC
Upgrade This Mac
Upgrade This Mac
Upgrade This Mac
Mission Repair
Fix This Mac
Fix This Mac
Fix This Mac
Blue Raven
Parts for This Mac
Parts for This Mac
Parts for This Mac
Introduction Date
May 3, 2011
May 3, 2011
May 3, 2011
Discontinued Date
N/A
N/A
N/A
Processors (Cores)
1 (4 Cores)
1 (4 Cores)
1 (4 Cores)
Geekbench
7241/7970*
7890/8647*
10248/10690*
Processor Speed
2.5 GHz
2.7 GHz
2.8 GHz
Processor Type
Core i5 (I5-2400S)
Core i5 (I5-2500S)
Core i7 (I7-2600S)
Custom Speeds
N/A
2.8 GHz (Core i7)
N/A
Architecture
64-Bit
64-Bit
64-Bit
Processor Upgrade
LGA 1155 (Socket H2)*
LGA 1155 (Socket H2)*
LGA 1155 (Socket H2)*
System Bus Speed
5 GT/s*
5 GT/s*
5 GT/s*
Cache Bus Speed
2.5 GHz (Built-in)
2.7 GHz (Built-in)
2.7 GHz (Built-in)
ROM/Firmware
EFI
EFI
EFI
EFI Architecture
64-Bit
64-Bit
64-Bit
L1 Cache
32k/32k
32k/32k
32k/32k
L2 Cache
256k (x 4), 6 MB
256k (x 4), 6 MB
256k (x 4), 8 MB
RAM Type
PC3-10600 DDR3
PC3-10600 DDR3
PC3-10600 DDR3
Min. RAM Speed
1333 MHz
1333 MHz
1333 MHz
Standard RAM
4 GB
4 GB
4 GB
Maximum RAM
32 GB*
32 GB*
32 GB*
Motherboard RAM
None
None
None
RAM Slots
4
4
4
Video Card
Radeon HD 6750M
Radeon HD 6770M
Radeon HD 6770M
VRAM Type
GDDR5
GDDR5
GDDR5
Standard VRAM
512 MB
512 MB
512 MB
Maximum VRAM
512 MB
512 MB
512 MB
Display
21.5" 16:9 Widescreen
21.5" 16:9 Widescreen
21.5" 16:9 Widescreen
Resolution
1920x1080
1920x1080
1920x1080
2nd Disp Support
Dual/Mirroring
Dual/Mirroring
Dual/Mirroring
2nd Max Res
2560x1600
2560x1600
2560x1600
Video Port
1 (Thunderbolt)
1 (Thunderbolt)
1 (Thunderbolt)
Standard HD
500 GB (7200 RPM)
1 TB (7200 RPM)
1 TB (7200 RPM)
Int HD Interface
Serial ATA (6 Gb/s*)
Serial ATA (6 Gb/s*)
Serial ATA (6 Gb/s*)
Standard Optical
8X DL "SuperDrive"
8X DL "SuperDrive"
8X DL "SuperDrive"
Standard Ethernet
10/100/1000Base-T
10/100/1000Base-T
10/100/1000Base-T
Standard AirPort
802.11a/b/g/n (450 Mbit*)
802.11a/b/g/n (450 Mbit*)
802.11a/b/g/n (450 Mbit*)
Standard Bluetooth
2.1+EDR
2.1+EDR
2.1+EDR
USB
4 (2.0)
4 (2.0)
4 (2.0)
Firewire
1 (800)
1 (800)
1 (800)
Expansion Slots
SDXC SD Card
SDXC SD Card
SDXC SD Card
Expansion Bays
None
None*
None*
Keyboard Type
Apple Wireless Keyboard
Apple Wireless Keyboard
Apple Wireless Keyboard
Input Type
Magic Mouse/Trackpad
Magic Mouse/Trackpad
Magic Mouse/Trackpad
Case Type
All-in-One
All-in-One
All-in-One
Form Factor
iMac (Late 2009)
iMac (Late 2009)
iMac (Late 2009)
Apple Subfamily
Mid-2011
Mid-2011
Mid-2011
Order Number
MC309LL/A
MC812LL/A
BTO/CTO
Model Number
A1311
A1311
A1311
EMC Number
2428
2428
2428
Model Identifier
iMac12,1
iMac12,1
iMac12,1
Battery Type
N/A
N/A
N/A
Battery Life
N/A
N/A
N/A
Original OS
X 10.6.6 (10J4026)
X 10.6.6 (10J4026)
X 10.6.6 (10J4026)
Maximum OS
Current
Current
Current
Mac OS X Support
7 (32-Bit)*
7 (32-Bit)*
7 (32-Bit)*
Windows Support
7 (64-Bit)**
7 (64-Bit)**
7 (64-Bit)**
Mac OS 9
None
None
None
Windows
Boot/Virtualization
Boot/Virtualization
Boot/Virtualization
Dimensions
17.75 x 20.8 x 7.42
17.75 x 20.8 x 7.42
17.75 x 20.8 x 7.42
Avg Weight
20.5 lbs. (9.3 kg)
20.5 lbs. (9.3 kg)
20.5 lbs. (9.3 kg)
Original Price
US$1199
US$1499
US$1699
Est Current Retail
US$1199
US$1499
US$1699


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