Apple iMac (17-inch, Mid 2006) vs Apple iMac (Retina 5K, 27-inch, 2019)

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

Better figure, where one is clearly better

iMac (17-inch, Mid 2006) compared with iMac (Retina 5K, 27-inch, 2019)
AppleiMac (17-inch, Mid 2006)AppleiMac (Retina 5K, 27-inch, 2019)
Overview
ReleasedJuly 2006March 2019
Performance
ProcessorIntel Core Duo T2400Intel Core i5-8500, Intel Core i5-8600, Intel Core i9-9900K or Intel Core i5-9600K
CPU cores26 or 8
CPU threads–6 or 16
GraphicsIntel GMA950Radeon Pro 570X (4 GB GDDR5), Radeon Pro 575X (4 GB GDDR5), Radeon Pro 580X (8 GB GDDR5) or Radeon Pro Vega 48 (8 GB HBM2)
Memory512 MB, 1 GB or 2 GB8 GB, 16 GB, 32 GB or 64 GB (better)
Storage80 GB to 160 GB256 GB to 3 TB (better)
CPU1.83 GHz Intel Core Duo; exact T2400 identity cross-checked with EveryMac. Existing chip record is reused; no sibling processor figures are borrowed.Six-core Core i5 at 3.0 GHz (Turbo Boost 4.1 GHz), 3.1 GHz (Turbo Boost 4.3 GHz) or 3.7 GHz (Turbo Boost 4.6 GHz); upper two bases configurable to 3.6 GHz eight-core Core i9 with Turbo Boost up to 5.0 GHz. Exact K-suffix CPU identities follow Geekbench’s model database; Macworld instead lists KF suffixes.
GPUIntel GMA950 integrated graphics, sharing system memory.Radeon Pro 570X or 575X with 4 GB GDDR5, or Radeon Pro 580X with 8 GB GDDR5; only the upper base supports Radeon Pro Vega 48 with 8 GB HBM2
Memory type667 MHz DDR2; 512 MB standard, configurable to 1 or 2 GB. The exact maker manual specifies matched pairs of 512 MB or 1 GB modules for the upgrades.2666 MHz DDR4; 8 GB standard as two 4 GB modules in four user-accessible SO-DIMM slots. Lower base configurable to 16/32 GB; upper two bases to 16/32/64 GB.
Storage type80 GB 7200 rpm Serial ATA hard drive, configurable to 160 GB; 24x Combo drive reads DVDs and reads/writes CDs, rather than burning DVDs.570X base: 1/2 TB Fusion Drive or 256/512 GB/1 TB SSD. 575X base: 1/2/3 TB Fusion Drive or 256/512 GB/1 TB SSD. 580X/Vega base: 2/3 TB Fusion Drive or 512 GB/1/2 TB SSD.
Display
Screen size17″27″
Resolution1440 × 9005120 × 2880 (better)
Panel–IPS LCD
Brightness250 nits500 nits (better)
Display typeEveryMac specifies 1440 × 900 pixels, typical brightness 250 cd/m², contrast 500:1 and viewing angles of 140 degrees horizontal/120 degrees vertical. Exact model panel technology and refresh rate remain unpublished.LED-backlit Retina 5K display; IPS panel confirmed by EveryMac; Apple does not publish native refresh rate in this model’s specification sheet
Display features–Wide colour (P3); supports one billion colours
Connections
Ports3 × USB-A, Ethernet, headphone jack2 × Thunderbolt 3, 4 × USB-A, SD card slot, Ethernet, headphone jack
Ethernet1 Gb/s1 Gb/s
External displays–Up to 2
Wi-Fi802.11g802.11ac
Bluetooth–4.2
CameraiSight cameraFaceTime HD
Back portsThree USB 2.0 ports on the computer, plus two on the keyboard; two FireWire 400 ports, Mini-DVI video output, Gigabit Ethernet and audio input/output. External-display resolution is omitted because the secondary figure explicitly refers to a different later model.Four USB-A ports; two Thunderbolt 3 USB-C ports with DisplayPort, Thunderbolt up to 40 Gb/s and USB 3.1 Gen 2 up to 10 Gb/s; SDXC, Gigabit Ethernet and 3.5 mm headphone jack; Kensington lock slot. Thunderbolt 2, HDMI, DVI and VGA require separately sold adapters.
External displays–Built-in display at full 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 and microphone.Stereo speakers
Microphones–Built-in microphone
Keyboard and mouseApple Keyboard and Mighty Mouse; Apple Remote is optional. Macworld confirms Bluetooth is not included.Rechargeable Magic Keyboard and Magic Mouse 2; optional Magic Keyboard with Numeric Keypad and Magic Trackpad 2
Design and power
TypeAll-in-oneAll-in-one
Weight–9.42 kg
Width × depth × height–650 × 203 × 516 mm
Operating systemmacOSmacOS
Size and weight detail–Dimensions include the stand; weight varies by configuration. A built-in VESA mount version was also available.
Power supply–100–240 V AC, 50–60 Hz, single phase
Materials–Recyclable aluminium enclosure; arsenic-free glass and mercury-free LED backlight
In the boxInstitution-only education configuration; Mac OS X Tiger 10.4.6 and iLife ’06. Later secondary OS version 10.4.7 does not replace the maker launch wording.iMac, Magic Keyboard, Magic Mouse 2, power lead and Lightning to USB cable

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