Dell UltraSharp U2715H vs Dell UltraSharp 34 Curved Thunderbolt Hub (U3425WE)

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UltraSharp U2715H compared with UltraSharp 34 Curved Thunderbolt Hub (U3425WE)

	DellUltraSharp U2715H	DellUltraSharp 34 Curved Thunderbolt Hub (U3425WE)
Overview
Released
Released	2014	February 2024
Display
Screen size
Screen size	27″	34.14″
Resolution
Resolution	2560 × 1440 (QHD)	3440 × 1440 (UWQHD) (better)
Sharpness
Sharpness	109 pixels per inch	109 pixels per inch
Panel
Panel	IPS	IPS (IPS Black)
Refresh rate
Refresh rate	60 Hz	120 Hz (better)
Response time (grey to grey)
Response time (grey to grey)	6 ms	5 ms (better)
Brightness (typical)
Brightness (typical)	350 nits (better)	300 nits
Contrast ratio
Contrast ratio	1,000:1	2,000:1
Colour range
Colour range	99% sRGB	98% DCI-P3, 98% Display P3, 100% sRGB
DCI-P3 coverage
DCI-P3 coverage	–	98%
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 3	Below 2 (better)
Screen finish
Screen finish	Matte	Matte
Shape
Shape	Flat	Curved (1900R)
Colour depth
Colour depth	16.78 million colours	1.07 billion colours
sRGB coverage
sRGB coverage	99%	100% (CIE 1931)
Colour accuracy
Colour accuracy	Factory calibrated to average Delta E ≤ 3.	Delta E < 2 (average) (DCI-P3, Display P3, sRGB, BT.709); factory calibration report in the box
Response time detail
Response time detail	6 ms grey-to-grey in Fast mode; 8 ms in Normal mode (Dell). TFTCentral found Fast introduced overshoot on its sample.	5 ms (Fast), 8 ms (Normal)
Variable refresh range
Variable refresh range	–	48–120 Hz over DisplayPort and Thunderbolt 4; 48–100 Hz over HDMI (vertical scan range)
Viewing angles
Viewing angles	178° horizontal and vertical (typical).	178° horizontal, 178° vertical (typical)
Pixel pitch
Pixel pitch	0.2331 mm.	0.2325 mm x 0.2325 mm
Eye care
Eye care	Analogue backlight dimming for a flicker-free display, according to Dell.	ComfortView Plus hardware low blue light; TÜV Rheinland Eye Comfort 3.0 (5 star); ambient light sensor (Auto Brightness); flicker-free
Connections
Video inputs
Video inputs	2 × HDMI 1.4, 2 × DisplayPort 1.2	HDMI 2.1 (TMDS), DisplayPort 1.4, Thunderbolt 4
USB-C charging
USB-C charging	None	Up to 90 W (better)
USB ports
USB ports	5 × USB-A	2 × USB-C, 5 × USB-A, Thunderbolt 4
KVM switch
KVM switch	–	Yes
Ethernet
Ethernet	–	Yes
Speakers
Speakers	No	Yes
HDMI detail
HDMI detail	Two HDMI 1.4 inputs with MHL 2.0 support.	1 x HDMI (HDCP 1.4 & 2.2), up to 3440 x 1440 at 100 Hz TMDS as specified in HDMI 2.1
DisplayPort detail
DisplayPort detail	One DisplayPort 1.2 input, one Mini DisplayPort input and one DisplayPort 1.2 MST output.	1 x DisplayPort 1.4 (HDCP 1.4 & 2.2), up to 3440 x 1440 at 120 Hz
USB-C detail
USB-C detail	–	Thunderbolt 4 upstream (40Gbps, DisplayPort 1.4 Alt Mode, Power Delivery up to 90 W); USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream quick-access ports (15 W)
Daisy chaining
Daisy chaining	DisplayPort 1.2 MST output; Dell lists one additional QHD 60 Hz display or two lower-resolution displays.	Thunderbolt 4 downstream port (video and data, 15 W)
USB hub detail
USB hub detail	Five downstream USB 3.0 Type-A ports and one upstream USB 3.0 Type-B port; one downstream port supports BC 1.2 charging.	4 x USB-A 10Gbps rear; quick access ports with 1 x USB-A 10Gbps (BC 1.2) and 2 x USB-C 10Gbps (15 W)
Picture by picture
Picture by picture	–	Picture by Picture and Picture in Picture
Audio out
Audio out	Audio line out for external speakers; Dell says it does not support headphones.	3.5 mm audio line out
Speaker detail
Speaker detail	–	2 x 5 W
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel, pivot (better)	Height, tilt, swivel
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	–	10.81 kg
Height adjustment
Height adjustment	115 mm.	150 mm
Tilt
Tilt	-5° to 21°.	-5° to 21°
Swivel
Swivel	-45° to 45°.	-30° to 30°
Pivot
Pivot	-90° to 90°.	–
VESA pattern
VESA pattern	100 × 100 mm.	100 x 100 mm
Size with stand
Size with stand	612.7 × 205.0 × 409.9–524.9 mm (width × depth × height).	813.46 x 240.43 x 392.83–542.83 mm (W x D x H)
Size without stand
Size without stand	612.7 × 46.4 × 363.4 mm (width × depth × height).	813.46 x 105.08 x 359.15 mm (W x D x H)
Weight without stand
Weight without stand	4.91 kg, without cables.	7.78 kg
Controls
Controls	Touch-sensitive front buttons and on-screen display.	–
Colours
Colours	Black front frame and silver stand.	Silver
Power and support
Power use
Power use	36 W typical, 88 W maximum with USB active; less than 0.5 W in standby.	31.5 W on mode, 0.5 W standby, 1.9 W networked standby, 0.3 W off, 250 W maximum
Energy class
Energy class	–	F
Power supply
Power supply	100–240 V AC, 50/60 Hz.	100–240 VAC, 50/60 Hz, 3.2 A (typical)
Software
Software	Dell Display Manager.	Dell Display and Peripheral Manager (Easy Arrange)
Certifications
Certifications	EPEAT Gold and TCO Certified Displays, according to Dell.	TÜV Rheinland Eye Comfort 3.0 (5 star), TÜV Rheinland hardware low blue light
Warranty
Warranty	–	3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange (UK)
In the box
In the box	Stand, power cable, Mini DisplayPort-to-DisplayPort cable, USB 3.0 upstream cable, factory calibration report and documentation.	Stand, power cable, DisplayPort 1.4 cable (1.8 m), HDMI cable (1.8 m), Thunderbolt 4 passive cable (1 m), USB-A to USB-C cable (1 m), factory calibration report