Apple iMac (17-inch, Late 2006) vs Apple iMac (21.5-inch, 2017)

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

Better figure, where one is clearly better

iMac (17-inch, Late 2006) compared with iMac (21.5-inch, 2017)
AppleiMac (17-inch, Late 2006)AppleiMac (21.5-inch, 2017)
Overview
ReleasedSeptember 2006June 2017
Performance
ProcessorIntel Core 2 Duo T5600, Intel Core 2 Duo T7200 or Intel Core 2 Duo T7400Intel Core i5-7360U
CPU cores22
CPU threads–4
GraphicsIntel GMA 950 (64 MB shared DDR2) or ATI Radeon X1600 (128 MB GDDR3)Intel Iris Plus Graphics 640
Memory512 MB, 1 GB, 2 GB or 3 GB8 GB or 16 GB (better)
Storage160 GB to 500 GB256 GB to 1 TB (better)
CPU1.83 GHz Core 2 Duo T5600 with 2 MB shared L2 cache; higher configuration has 2.0 GHz T7200 or optional 2.16 GHz T7400 with 4 MB shared L2 cache. All use a 667 MHz system bus; exact identities cross-checked with EveryMac.2.3 GHz dual-core Intel Core i5 with Turbo Boost up to 3.6 GHz; Geekbench identifies the exact processor as Core i5-7360U
GPUIntel GMA 950 with 64 MB DDR2 shared system memory on the 1.83 GHz configuration; ATI Radeon X1600 with 128 MB GDDR3 on the 2.0 and 2.16 GHz configurationsIntel Iris Plus Graphics 640; no discrete graphics option
Memory typeTwo SO-DIMM slots for PC2-5300 (667 MHz) DDR2 SDRAM. Entry configuration has two 256 MB modules, configurable to 1 or 2 GB; higher configurations have two 512 MB modules, configurable to 2 or 3 GB.8 GB of 2133 MHz DDR4, configurable to 16 GB
Storage type160 GB 7200 rpm Serial ATA hard drive; higher configurations can have 250 or 500 GB. Entry configuration has a 24x Combo drive for DVD reading and CD writing; higher configurations have an 8x SuperDrive with 2.4x double-layer DVD burning.1 TB 5400-rpm hard drive, configurable to 1 TB Fusion Drive or 256 GB SSD
Display
Screen size17″21.5″
Resolution1440 × 9001920 × 1080 (better)
Brightness250 nits–
Display typeWidescreen TFT active-matrix LCD, millions of colours; typical contrast 500:1, viewing angles 140° horizontal and 120° vertical. Panel technology and refresh rate unpublished.21.5-inch LED-backlit display; 1920 × 1080 with support for millions of colours. Apple does not identify the panel technology, native refresh rate or brightness in its specification sheet; Retina model display figures do not apply.
Connections
Ports3 × USB-A, Ethernet, headphone jack2 × Thunderbolt 3, 4 × USB-A, SD card slot, Ethernet, headphone jack
Ethernet1 Gb/s1 Gb/s
External displaysUp to 1Up to 2 (better)
Wi-Fi802.11g; 54 Mbps AirPort Extreme802.11ac
Bluetooth–4.2
CameraiSight cameraFaceTime HD
Back portsThree USB 2.0 ports on the computer and two USB 1.1 ports on its keyboard; two FireWire 400 ports sharing 8 W, mini-DVI, Gigabit Ethernet, headphone/optical digital output and line-in/optical digital input. Bluetooth 2.0 + EDR is standard on higher configurations; not standard on the entry configuration, but listed as an order option in Apple's UK announcement.Four USB-A ports, two Thunderbolt 3 (USB-C) ports, SDXC card slot, Gigabit Ethernet, 3.5 mm headphone jack and Kensington lock slot. Thunderbolt 3 supports DisplayPort, up to 40 Gb/s Thunderbolt and up to 10 Gb/s USB 3.1 Gen 2; Thunderbolt 2, HDMI, DVI and VGA require adapters.
External displaysOne external display in extended desktop or mirroring mode; digital resolutions up to 1920 × 1200 and analogue up to 2048 × 1536. DVI, VGA, S-video and composite adapters sold separately.Built-in display at native resolution alongside one 5120 × 2880 display at 60 Hz with one billion colours, two 3840 × 2160 displays at 60 Hz with one billion colours, or two 4096 × 2304 displays at 60 Hz with millions of colours
SpeakersBuilt-in stereo speakers with internal 12 W digital amplifier and built-in microphoneStereo speakers; supports Apple iPhone headset with microphone
Microphones–Built-in microphone
Keyboard and mouseApple Keyboard and Mighty Mouse; Apple Remote included with higher configurations and optional on the entry model; optional wireless keyboard and mouse for higher configurationsMagic Keyboard, Magic Mouse, Lightning to USB cable and polishing cloth; configurable with Magic Keyboard with Numeric Keypad or Magic Trackpad
Design and power
TypeAll-in-oneAll-in-one
Weight–5.44 kg
Width × depth × height426 × 173 × 430 mm528 × 175 × 450 mm
Operating systemmacOSmacOS
Size and weight detailMaker weight 15.5 pounds (7 kg), varying by configuration and manufacturing process; shared scalar weight omittedDimensions include the stand; weight varies by configuration and manufacturing process. A built-in VESA mount version was available.
Power supplyMaximum continuous power 180 W; 100–240 V AC, 50–60 Hz single phase100–240 V AC, 50–60 Hz, single phase
Noise–Apple reports operator-position sound pressure of 11 dB at idle and during wireless web, and 12 dB during hard-drive seek, tested on the Core i5 with 8 GB memory and 1 TB hard drive
Materials–Aluminium enclosure; arsenic-free display glass; mercury-, BFR- and beryllium-free with regional exceptions for PVC-free power leads
In the boxiMac, Apple Keyboard, Mighty Mouse, power cord, install/restore DVDs and documentation; Apple Remote except on the entry configuration. Mac OS X 10.4 Tiger, iLife '06, Front Row, Photo Booth, Microsoft Office 2004 Test Drive and iWork trial.iMac, Magic Keyboard, Magic Mouse, Lightning to USB cable, polishing cloth and power lead. Apple's current support page describes the later macOS Big Sur release.

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