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Apple LED Cinema Display (27-inch) vs Dell UltraSharp U2713HM

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

Better figure, where one is clearly better

AppleLED Cinema Display (27-inch)DellUltraSharp U2713HM
Overview
ReleasedSeptember 20102012
Display
Screen size27″27″
Resolution2560 × 1440 (QHD)2560 × 1440 (QHD)
Sharpness109 pixels per inch109 pixels per inch
PanelIPSIPS (Edge-lit white LED IPS.)
Refresh rate60 Hz60 Hz
Response time (grey to grey)–8 ms
Brightness (typical)375 nits350 nits
Contrast ratio1,000:11,000:1
Colour range–>99% sRGB
Screen finishGlossyMatte
ShapeFlatFlat
Colour depthUp to 16.7 million colours; panel bit depth is not specified16.7 million colours, according to Dell.
sRGB coverage–Over 99% typical, according to Dell.
Response time detailTypical 12 ms without a specified transition; omitted from the grey-to-grey row8 ms grey-to-grey, typical.
Viewing angles178° horizontally and vertically178° horizontal and vertical, typical.
Pixel pitch–0.23 mm.
Eye careAmbient light sensor adjusts brightness automatically–
Connections
Video inputsMini DisplayPortHDMI 1.4, DisplayPort 1.2
USB-C chargingNoneNone
USB ports3 × USB-A4 × USB-A
SpeakersYesNo
HDMI detail–One HDMI 1.4 input; one dual-link DVI-D and one VGA input also provided.
WebcamiSight camera with microphone–
DisplayPort detailCaptive Mini DisplayPort cable; audio support depends on the host MacOne DisplayPort 1.2 input.
USB hub detailThree powered USB 2.0 Type-A ports; upstream USB cable required for data, camera, microphone and speakers. Device charging works without a host connected.Four USB 3.0 downstream Type-A ports, two rear and two left; one upstream Type-B port.
Audio out–Audio line out for speakers; Dell says headphones are unsupported.
Speaker detailBuilt-in 2.1 system with 49 W output–
Webcam detailBuilt-in iSight; maker specifications do not publish a megapixel figure–
Design
Stand adjustsTiltHeight, tilt, swivel, pivot
VESA mountYesYes
Weight with stand10.7 kg5.6 kg
Height adjustment–115 mm, according to Dell.
VESA patternRequires the separately sold Apple VESA Mount Adapter Kit100 × 100 mm.
Size with standCurrent UK specifications give 650 × 491 × 207 mm (width × height × depth). Original manual gives 651.7 × 488.1 × 208.13 mm; both give 10.7 kg.639.3 × 200.3 × 424.3–538.9 mm (width × depth × height).
Size without stand–639.3 × 65.6 × 378.2 mm (width × depth × height).
Weight without stand–5.6 kg without cables.
ControlsBrightness, colour profile and calibration through Mac OS X Displays preferences; no physical image controls (Macworld)Front right on-screen-display buttons.
ColoursAluminium enclosure with black glass bezel–
Power and support
Power useMaximum 250 W while charging a MacBook Pro; energy saver 1 W or less42 W typical and 100 W maximum with soundbar and USB active, according to Dell.
Power supplyInternal power supply; 100–240 V AC, 50–60 Hz100–240 V AC, 50/60 Hz.
Laptop chargingSeparate captive universal MagSafe connector supplies up to 85 W; no USB-C power delivery–
SoftwareOriginal requirement Mac with Mini DisplayPort and Mac OS X 10.6.4 or later. July 2010 announcement specifies September availability.Dell Display Manager included at launch.
CertificationsENERGY STAR 5.0; EPEAT Gold in the US, Canada, France, Germany and UKENERGY STAR, EPEAT Gold and TCO Certified Displays, according to Dell.
In the boxDisplay, AC power cord and printed documentation–

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