Apple iMac (24-inch, Early 2008) vs Apple iMac Pro (2017)

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iMac (24-inch, Early 2008) compared with iMac Pro (2017)

	AppleiMac (24-inch, Early 2008)	AppleiMac Pro (2017)
Overview
Released
Released	April 2008	December 2017
Performance
Processor
Processor	Intel Core 2 Duo E8235 or Intel Core 2 Duo E8435	Intel Xeon W-2140B, Intel Xeon W-2150B, Intel Xeon W-2170B or Intel Xeon W-2191B
CPU cores
CPU cores	2	8, 10, 14 or 18
Graphics
Graphics	ATI Radeon HD 2600 PRO (256 MB GDDR3) or NVIDIA GeForce 8800 GS (512 MB GDDR3)	Radeon Pro Vega 56 (8 GB HBM2), Radeon Pro Vega 64 (16 GB HBM2) or Radeon Pro Vega 64X (16 GB HBM2)
Memory
Memory	2 GB or 4 GB	32 GB, 64 GB, 128 GB or 256 GB (better)
Storage
Storage	320 GB to 1 TB	1 TB to 4 TB (better)
CPU
CPU	2.8 GHz Intel Core 2 Duo E8235, configurable to 3.06 GHz E8435; 6 MB shared L2 cache and 1066 MHz frontside bus. Exact processor identities cross-checked with EveryMac.	Xeon W at 3.2 GHz with 8 cores (Turbo Boost 4.2 GHz), 3.0 GHz with 10 cores (4.5 GHz), 2.5 GHz with 14 cores (4.3 GHz) or 2.3 GHz with 18 cores (4.3 GHz). Exact W-B CPU identities follow Geekbench. The 8/10-core versions launched first; Macworld reports later January 2018 availability for 14/18-core options. Apple changed the standard configuration to 10 cores in August 2020.
GPU
GPU	Either processor supports ATI Radeon HD 2600 PRO with 256 MB GDDR3 or optional NVIDIA GeForce 8800 GS with 512 MB GDDR3	Radeon Pro Vega 56 with 8 GB HBM2, optionally Vega 64 or Vega 64X with 16 GB HBM2. Vega 64X is a later option included in Apple’s current specification sheet, absent from the launch reviews.
Memory type
Memory type	Two user-accessible SO-DIMM slots for 800 MHz DDR2 SDRAM; 2 GB standard, configurable to 4 GB	Quad-channel 2666 MHz DDR4 ECC; 32 GB standard, configurable to 64/128/256 GB. The current maker sheet includes the later 256 GB option; launch reviews cover up to 128 GB. No user-accessible memory door.
Storage type
Storage type	320 GB 7200 rpm Serial ATA hard drive with either processor, configurable to 500 GB, 750 GB or 1 TB; slot-loading 8x SuperDrive with 4x double-layer DVD burning	1 TB SSD, configurable to 2 or 4 TB
Display
Screen size
Screen size	24″	27″
Resolution
Resolution	1920 × 1200	5120 × 2880 (better)
Panel
Panel	–	IPS LCD
Brightness
Brightness	385 nits	500 nits (better)
Display type
Display type	Glossy widescreen TFT active-matrix LCD, millions of colours; typical contrast 750:1 and 178° horizontal and vertical viewing angles. Panel technology and refresh rate unpublished and omitted.	LED-backlit Retina 5K display; IPS panel confirmed by EveryMac. Native refresh rate omitted because Apple does not publish it in the specification sheet.
Display features
Display features	Optional 24-inch VESA Mount Adapter kit	Wide colour (P3); supports one billion colours
Connections
Ports
Ports	3 × USB-A, Ethernet, headphone jack	4 × Thunderbolt 3, 4 × USB-A, SD card slot, Ethernet, headphone jack
Ethernet
Ethernet	1 Gb/s	10 Gb/s (better)
External displays
External displays	Up to 1	Up to 4 (better)
Wi-Fi
Wi-Fi	802.11n draft; compatible with 802.11a/b/g	802.11ac
Bluetooth
Bluetooth	2.1 + EDR	5.0
Camera
Camera	iSight camera	1080p FaceTime HD
Back ports
Back ports	Three USB 2.0 ports on the computer, plus two on the supplied keyboard; one FireWire 400 and one FireWire 800 port, each rated 7 W; mini-DVI output, Gigabit Ethernet, headphone/optical digital output and line-in/optical digital input. FireWire, mini-DVI and audio input described here.	Four USB-A ports; four Thunderbolt 3 USB-C ports with DisplayPort 1.2, Thunderbolt up to 40 Gb/s and USB 3.1 Gen 2 up to 10 Gb/s; UHS-II SDXC, Nbase-T Ethernet supporting 1/2.5/5/10Gb and 3.5 mm headphone jack. Thunderbolt 2, HDMI, DVI and VGA require adapters.
External displays
External displays	One 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.	Two 5120 × 2880 displays at 60 Hz with one billion colours, four 3840 × 2160 displays at 60 Hz with one billion colours, or four 4096 × 2304 displays at 60 Hz with millions of colours, alongside the built-in display
Speakers
Speakers	Built-in stereo speakers with internal 24 W digital amplifier and built-in microphone	Stereo speakers
Microphones
Microphones	–	Four microphones; supports Hey Siri
Keyboard and mouse
Keyboard and mouse	Apple Keyboard, Mighty Mouse and infrared Apple Remote; optional wireless keyboard and wireless Mighty Mouse	Space grey Magic Keyboard with Numeric Keypad and Magic Mouse 2; optional space grey Magic Trackpad 2
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	–	9.7 kg
Width × depth × height
Width × depth × height	569 × 207 × 520 mm	650 × 203 × 516 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Maker weight 25.4 pounds (11.5 kg), varying by configuration and manufacturing process; shared scalar weight omitted	Dimensions include the stand; weight varies by configuration and manufacturing process. Optional VESA mount adapter kit.
Power supply
Power supply	Maximum continuous power 280 W; 100–240 V AC, 50–60 Hz single phase	100–240 V AC, 50–60 Hz, single phase
Power use
Power use	Apple environmental report for MB325 at 230 V records 1.65 W off, 2.58 W sleep and 36.2 W idle with display off or 113.2 W with display on; display on means full brightness	–
Materials
Materials	Recyclable aluminium and glass enclosure; arsenic-free display glass, majority of circuit-board laminates free of brominated flame retardants and PVC-free internal cables	Recyclable aluminium enclosure; arsenic-free glass and mercury-free LED backlight
In the box
In the box	iMac, Apple Keyboard, Mighty Mouse, Apple Remote, cleaning cloth, power cord, install/restore DVDs and documentation; Mac OS X Leopard and iLife '08	iMac Pro, space grey Magic Keyboard with Numeric Keypad, space grey Magic Mouse 2, Lightning to USB cable and power lead