Apple iMac (27-inch, Late 2012) vs Apple iMac (27-inch, Late 2013)

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

iMac (27-inch, Late 2012) compared with iMac (27-inch, Late 2013)
AppleiMac (27-inch, Late 2012)AppleiMac (27-inch, Late 2013)
Overview
ReleasedDecember 2012September 2013
Performance
ProcessorIntel Core i5-3470S, Intel Core i5-3470 or Intel Core i7-3770Intel Core i5-4570, Intel Core i5-4670 or Intel Core i7-4771
CPU cores44
CPU threads4 or 84 or 8
GraphicsNVIDIA GeForce GTX 660M (512 MB GDDR5), NVIDIA GeForce GTX 675MX (1 GB GDDR5) or NVIDIA GeForce GTX 680MX (2 GB GDDR5)NVIDIA GeForce GT 755M (1 GB GDDR5), NVIDIA GeForce GTX 775M (2 GB GDDR5) or NVIDIA GeForce GTX 780M (4 GB GDDR5)
Memory8 GB, 16 GB or 32 GB8 GB, 16 GB or 32 GB
Storage768 GB to 3 TB256 GB to 3 TB
CPU2.9 GHz quad-core Core i5 or 3.2 GHz quad-core Core i5, both with Turbo Boost up to 3.6 GHz; the upper model supports a 3.4 GHz quad-core Core i7 with Turbo Boost up to 3.9 GHz3.2 GHz quad-core Core i5 with Turbo Boost up to 3.6 GHz, or 3.4 GHz quad-core Core i5 with Turbo Boost up to 3.8 GHz; the upper configuration supports a 3.5 GHz quad-core Core i7 with Turbo Boost up to 3.9 GHz
GPUNVIDIA GeForce GTX 660M with 512 MB GDDR5 on the 2.9 GHz model; GTX 675MX with 1 GB GDDR5 on the upper model, configurable to GTX 680MX with 2 GB GDDR5NVIDIA GeForce GT 755M with 1 GB GDDR5 on the 3.2 GHz model; GeForce GTX 775M with 2 GB GDDR5 on the 3.4 GHz model, configurable to GeForce GTX 780M with 4 GB GDDR5. The upper model supports either graphics option with its standard Core i5 or optional Core i7.
Memory type1600 MHz DDR3; 8 GB (two 4 GB modules), configurable to 16 GB (two 8 GB) or 32 GB (four 8 GB); four user-accessible SO-DIMM slots1600 MHz DDR3; 8 GB (two 4 GB modules), configurable to 16 GB (two 8 GB modules) or 32 GB (four 8 GB modules); four user-accessible SO-DIMM slots
Storage type1 TB or 3 TB 7200-rpm hard drive, 1 TB or 3 TB Fusion Drive, or 768 GB flash storage; all storage options are available with either base processor1 TB 7200-rpm hard drive; optional 3 TB hard drive, 1 TB or 3 TB Fusion Drive, or 256 GB, 512 GB or 1 TB flash storage on either base processor. Apple confirms PCIe flash storage in its launch notice.
Display
Screen size27″27″
Resolution2560 × 14402560 × 1440
PanelIPS LCDIPS LCD
Display typeLED-backlit display with IPS technology and support for millions of coloursLED-backlit display with IPS technology and support for millions of colours
Display featuresFully laminated glass and anti-reflective coating; Apple does not publish brightness or refresh rate in this model's specification sheetFully laminated glass and anti-reflective coating; Target Display Mode via a separately sold Thunderbolt cable. Apple does not publish brightness or refresh rate in the model's specification sheet.
Connections
Ports2 × Thunderbolt, 4 × USB-A, SD card slot, Ethernet, headphone jack2 × Thunderbolt, 4 × USB-A, SD card slot, Ethernet, headphone jack
Ethernet1 Gb/s1 Gb/s
External displaysUp to 1Up to 1
Wi-Fi802.11n802.11ac
Bluetooth4.04.0
CameraFaceTime HDFaceTime HD
Back portsFour USB 3 ports, two Thunderbolt ports with Mini DisplayPort output, SDXC card slot, Gigabit Ethernet, headphone and optical digital audio output; DVI, VGA and dual-link DVI require separately sold adaptersFour USB 3 ports, two Thunderbolt ports with Mini DisplayPort output, SDXC card slot, Gigabit Ethernet, headphone and optical digital audio output; Kensington lock slot. DVI, VGA and dual-link DVI need separately sold adapters.
External displaysBuilt-in display at full native resolution alongside one external display up to 2560 × 1600; extended desktop and video mirroringBuilt-in display at native resolution alongside one external display up to 2560 × 1600; extended desktop and video mirroring
SpeakersStereo speakers; supports Apple iPhone headset with microphoneStereo speakers; supports Apple iPhone headset with microphone
MicrophonesDual microphonesDual microphones
Keyboard and mouseApple Wireless Keyboard and Magic Mouse; optional Magic TrackpadApple Wireless Keyboard and Magic Mouse; optional Magic Trackpad
Design and power
TypeAll-in-oneAll-in-one
Weight9.54 kg9.54 kg
Width × depth × height650 × 203 × 516 mm650 × 203 × 516 mm
Operating systemmacOSmacOS
Size and weight detailDimensions include the stand; weight varies by configuration and manufacturing processDimensions include the stand; weight varies by configuration and manufacturing process. A built-in VESA mount version was also available.
Power supply100–240 V AC, 50–60 Hz, single phase100–240 V AC, 50–60 Hz, single phase
NoiseApple's operator-position sound pressure: 15 dB at idle on the 2.9 GHz model, 14 dB on the 3.2 GHz model; 15 dB during hard-drive access on bothApple's operator-position sound pressure: 15 dB at idle and during hard-drive access
MaterialsRecyclable aluminium and glass enclosure; arsenic-free display glass and mercury-free LED backlightRecyclable aluminium and glass enclosure; arsenic-free display glass and mercury-free LED backlight
In the boxiMac, Apple Wireless Keyboard, Magic Mouse and power lead; OS X Mountain Lion and iLife were included at launchiMac, Apple Wireless Keyboard, Magic Mouse and power lead; OS X Mountain Lion and iLife were included at launch

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