Product comparison · 2 monitors

HP L2311c computer monitor vs HP ZR2740w (HEAD ONLY)

37specifications compared
23differ
14identical
22known for one product only

Key differences

Display diagonal
- L2311c computer monitor:58.4 cm (23")
- ZR2740w (HEAD ONLY):68.6 cm (27")
Display resolution
- L2311c computer monitor:1920 x 1080 pixels
- ZR2740w (HEAD ONLY):2560 x 1440 pixels
HD type
- L2311c computer monitor:Full HD
- ZR2740w (HEAD ONLY):Quad HD
Display brightness (typical)
- L2311c computer monitor:250 cd/m²
- ZR2740w (HEAD ONLY):380 cd/m²
Response time
- L2311c computer monitor:5 ms
- ZR2740w (HEAD ONLY):12 ms
Viewing angle, horizontal
- L2311c computer monitor:170°
- ZR2740w (HEAD ONLY):178°
Viewing angle, vertical
- L2311c computer monitor:160°
- ZR2740w (HEAD ONLY):178°
Display number of colours
- L2311c computer monitor:16.78 million colours
- ZR2740w (HEAD ONLY):1.073 billion colours

Side by side

Differences highlightedShow differences only

Comparison of L2311c, ZR2740w (HEAD ONLY)
59 specifications	A HP L2311c computer monitor Model L2311c View product	B HP ZR2740w (HEAD ONLY)View product
Display12 differ
Display diagonalDiffers	58.4 cm (23")	68.6 cm (27")
Display resolutionDiffers	1920 x 1080 pixels	2560 x 1440 pixels
Native aspect ratio	16:9	16:9
Touchscreen	No	No
HD typeDiffers	Full HD	Quad HD
Display brightness (typical)Differs	250 cd/m²	380 cd/m²
Response timeDiffers	5 ms	12 ms
Supported graphics resolutionsDiffers	720 x 400, 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 720 (HD 720), 1440 x 900 (WXGA+), 640 x 480 (VGA), 800 x 600 (SVGA)	2560 x 1440
Aspect ratioKnown for one	16:9	Unknown — not stated by the source
Contrast ratio (typical)	1000:1	1000:1
Contrast ratio (dynamic)Known for one	1000000:1	Unknown — not stated by the source
Viewing angle, horizontalDiffers	170°	178°
Viewing angle, verticalDiffers	160°	178°
Display number of coloursDiffers	16.78 million colours	1.073 billion colours
Pixel pitchDiffers	0.265 x 0.265 mm	0.2331 x 0.2331 mm
Horizontal scan rangeKnown for one	24 - 94 kHz	Unknown — not stated by the source
Vertical scan rangeKnown for one	50 - 76 Hz	Unknown — not stated by the source
Viewable size, horizontalDiffers	53.3 cm	59.8 cm
Viewable size, verticalDiffers	28.7 cm	33.6 cm
3D	No	No
Display technologyKnown for one	Unknown — not stated by the source	LED
Panel typeKnown for one	Unknown — not stated by the source	IPS
Multimedia1 differ
Built-in speaker(s)	No	No
Built-in cameraDiffers	Yes	No
Designidentical
Product colour	Black	Black
Ports & interfaces4 differ
USB hub versionDiffers	3.2 Gen 1 (3.1 Gen 1)	2.0
USB Type-A downstream ports quantityDiffers	2	4
VGA (D-Sub) ports quantityDiffers	1	0
Headphone outputsKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
HDCPDiffers	No	Yes
Built-in USB hubKnown for one	Unknown — not stated by the source	Yes
Number of upstream portsKnown for one	Unknown — not stated by the source	1
DVI portKnown for one	Unknown — not stated by the source	Yes
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Ergonomicsidentical
VESA mounting	Yes	Yes
Panel mounting interfaceKnown for one	100 x 100 mm	Unknown — not stated by the source
Cable lock slot	Yes	Yes
Adjustable height (max)Known for one	13 cm	Unknown — not stated by the source
PivotKnown for one	Yes	Unknown — not stated by the source
Swivel angle rangeKnown for one	-180 - 180°	Unknown — not stated by the source
Tilt angle rangeKnown for one	-5 - 30°	Unknown — not stated by the source
Height adjustmentKnown for one	Unknown — not stated by the source	No
Power2 differ
Power consumption (typical)Differs	38 W	95 W
Power consumption (standby)Differs	1 W	2 W
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Weight & dimensions4 differ
Dimensions (W x D x H) with standKnown for one	551.5 x 249.4 x 467 mm	Unknown — not stated by the source
Width (without stand)Differs	555.1 mm	646 mm
Depth (without stand)Differs	49.5 mm	54 mm
Height (without stand)Differs	334.2 mm	235 mm
Weight (without stand)Differs	6.55 kg	8 kg
Other featuresidentical
Country of origin	China	China
TV tuner integrated	No	No
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
Supplied AC adapter type	LCD	LCD
On/off switchKnown for one	Unknown — not stated by the source	Yes
Thin Clientidentical
Thin client installed	No	No
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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