Apple Cinema Display (20-inch, DVI) vs Apple Cinema HD Display (30-inch, DVI)

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Cinema Display (20-inch, DVI) compared with Cinema HD Display (30-inch, DVI)

	AppleCinema Display (20-inch, DVI)	AppleCinema HD Display (30-inch, DVI)
Overview
Released
Released	July 2004	October 2004
Display
Screen size
Screen size	20.1″	29.7″
Resolution
Resolution	1680 × 1050	2560 × 1600 (WQXGA) (better)
Sharpness
Sharpness	99 pixels per inch	102 pixels per inch (better)
Panel
Panel	IPS (TFT active-matrix LCD (Apple); IPS identification from Les Numériques' exact 2005 review)	IPS (TFT active-matrix LCD (Apple June 2004 Technology Overview); S-IPS identification from PRAD’s exact aluminium 30-inch datasheet. Main brightness and contrast describe the original published generation.)
Refresh rate
Refresh rate	60 Hz	60 Hz
Brightness (typical)
Brightness (typical)	250 nits	270 nits (better)
Contrast ratio
Contrast ratio	400:1	400:1
Screen finish
Screen finish	Matte	Matte
Shape
Shape	Flat	Flat
Colour depth
Colour depth	Up to 16.7 million colours; Apple does not specify panel bit depth	Up to 16.7 million colours; Apple does not specify panel bit depth
Response time detail
Response time detail	Apple specifies typical 16 ms without identifying grey-to-grey transitions; not entered in the grey-to-grey row. Its later Japanese sheet lists 14 ms.	Original June 2004 Apple Technology Overview specifies typical 16 ms without identifying grey-to-grey transitions, so main grey-to-grey response is omitted. Original brightness is 270 cd/m² and contrast 400:1. Archived support table later gives 400 cd/m² and 400:1; Japanese specifications give 400 cd/m², 700:1 and 14 ms. These later figures are not substituted into the original main fields.
Viewing angles
Viewing angles	Original archived Apple specifications give 170° horizontally and vertically; a later Japanese sheet gives 178°.	Original archived Apple specifications give 170° horizontally and vertically; a later Japanese sheet gives 178°.
Pixel pitch
Pixel pitch	0.258 mm	0.250 mm
Connections
Video inputs
Video inputs	DVI	DVI
USB-C charging
USB-C charging	None	None
USB ports
USB ports	2 × USB-A	2 × USB-A
Other connections
Other connections	Captive DVI, USB 2.0, FireWire 400 and DC power cables; two downstream FireWire 400 ports and Kensington security slot	Captive DVI, USB 2.0, FireWire 400 and DC power cables; two downstream FireWire 400 ports and Kensington security slot
USB hub detail
USB hub detail	Two-port self-powered USB 2.0 hub; upstream USB cable must connect to computer	Two-port self-powered USB 2.0 hub; upstream USB cable must connect to computer
Design
Stand adjusts
Stand adjusts	Tilt	Tilt
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	6.6 kg	12.5 kg
VESA pattern
VESA pattern	Optional Cinema Display VESA Mount Adapter Kit; VESA FDMI MIS-D 100 C	Optional Cinema Display VESA Mount Adapter Kit; VESA FDMI MIS-D 100 C
Size with stand
Size with stand	471 × 410 × 174 mm (width × height × depth), from Apple's archived technical specifications	688 × 543 × 215 mm (width × height × depth), from Apple's archived technical specifications
Controls
Controls	Side power and brightness buttons; resolution and colour settings through Mac OS X Displays preferences	Side power and brightness buttons; resolution and colour settings through Mac OS X Displays preferences
Colours
Colours	Aluminium enclosure	Aluminium enclosure
Power and support
Power use
Power use	Maximum 65 W; energy saver mode 3 W or less	Maximum 150 W; energy saver mode 3 W or less
Power supply
Power supply	External A1096 65 W adaptor; 100–240 V AC, 50–60 Hz; 24.5 V DC output	External A1098 150 W adaptor; 100–240 V AC, 50–60 Hz; 24.5 V DC output
Software
Software	Apple's UK announcement specifies July 2004 availability. Original manual supports Mac OS X 10.2.8 or later on listed DVI Macs, with compatible DVI-equipped Windows PCs also possible. Original manual explicitly specifies 1680 × 1050 at 60 Hz and 20.1-inch viewable diagonal. Main weight follows archived maker specs (6.6 kg); original manual gives 6.3 kg without explaining the discrepancy.	Apple's June 2004 UK press release promised August sale, but delivery slipped into autumn (Computerworld/Macworld). Main release month follows MacRumors' October 2004 shipping report. At launch Apple specified Power Mac G5 with NVIDIA GeForce 6800 Ultra DDL for native resolution; a dual-link DVI graphics connection is required. Original manual explicitly specifies 2560 × 1600 at 60 Hz and 29.7-inch viewable diagonal. Main weight follows June 2004 maker Technology Overview (12.5 kg); original manual gives 12.31 kg and archived support table 12.47 kg. No basis for the discrepancies is stated.
In the box
In the box	Display with captive connection cables, power adaptor, AC cord and cleaning cloth	Display with captive connection cables, power adaptor, AC cord and cleaning cloth