Comparison between HP ZR2740w vs Samsung C34J791

General Info
Model Number	HP ZR2740w	Samsung C34J791

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2011	2018
Brand	HP	Samsung
Model Number	ZR2740w	C34J791
Alias	XW476A4 XW476A8	LC34J791WTEXXS
Display
Screen Size Class	27" (inches)	34" (inches)
Diagonal Size	27 in 68.6 cm 685.8 mm 2.25 ft	34 in 86.4 cm 863.6 mm 2.83 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	31.49 in 80 cm 799.8 mm 2.62 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	13.18 in 33.5 cm 334.8 mm 1.1 ft
Display Curvature		1500
Display Manufacturer	LG Display	Samsung
Display Type	H-IPS	SVA
Display Bit Depth	10 bits	8 bits
Frame Rate Control	No	No
Max Number of Colors	1073741824	16777216
Bits	30	24
Screen Aspect Ratio	16:9	21:9
Screen Resolution	2560 x 1440	3440 x 1440
Screen Pixel Pitch	0.233 mm	0.233 mm
Screen Pixel Density	109 ppi	109 ppi
Screen-to-Body Ratio	79.1 %	91.27 %
Backlight Source	W-LED	Edge LED
sRGB	100 %	125 %
Adobe RGB 1998	75 %	92 %
NTSC 1953	72 %
Screen Brightness	380 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Dynamic Screen Contrast		100000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	10 ms	6 ms
Display Minimum Response Time	7 ms	4 ms
Display Average Response Time	12 ms	14 ms
Display Coating	Anti-glare/Matte	Anti-glare/Matte (2H)
3D	No	No
Size, weight, color
Case Depth	2.68 in 6.8 cm 68 mm 0.22 ft	6.57 in 16.7 cm 167 mm 0.55 ft
Case Weight	8 kg 18 lbs	6.3 kg 14 lbs
Case Width with Stand	25.43 in 64.6 cm 646 mm 2.12 ft	31.84 in 80.9 cm 808.7 mm 2.65 ft
Case Height with Stand	17.32 in 44 cm 440 mm 1.44 ft	20.31 in 51.6 cm 516 mm 1.69 ft
Case Depth with Stand	9.25 in 23.5 cm 235 mm 0.77 ft	12.18 in 30.9 cm 309.4 mm 1.02 ft
Case Weight with Stand	10.5 kg 23 lbs	7.7 kg 17 lbs
Case Color	Black	White, Silver
Hardware
Built-in Camera	No	No
Connectivity	1 x DisplayPort 1.2 4 x USB 2.0 (downstream) 1 x USB 2.0 (upstream)	1 x DisplayPort 1.2 2 x Thunderbolt 3.0 1 x 3.5 mm Audio Out 2 x USB 2.0 (downstream) 1 x HDMI 1.4
Audio
Audio Speakers		2 x 7W
Features
Cool Features	DDC/CI HDCP (High-bandwidth Digital Content Protection)	Eye Saver Mode Flicker-free technology Picture-by-Picture Picture-in-Picture HDCP (High-bandwidth Digital Content Protection) AMD FreeSync technology Eco Saving Plus
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	25.43 in 64.6 cm 646 mm 2.12 ft	31.84 in 80.9 cm 808.7 mm 2.65 ft
Case Height	15.43 in 39.2 cm 392 mm 1.29 ft	14.28 in 36.3 cm 362.8 mm 1.19 ft
Vesa Mount Support	No	Yes
VESA Interface Standard Size	100 x 100	100 x 100
Removable VESA Stand	Yes	Yes
Height Adjustment	Yes	Yes
Height Adjustment Range	105 mm 10.5 cm 4.1339 in 0.3445 ft	100 mm 10 cm 3.937 in 0.3281 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	0 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	No
Left Swivel	45 °
Right Swivel	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	2 °
Backward Tilt	35 °	34 °
Frequency and Interpolation
Vertical Digital Frequency	50 Hz - 60 Hz	48 Hz - 100 Hz
Horizontal Digital Frequency	24 kHz - 94 kHz	30 kHz - 152 kHz
Accessories
Extras	D-sub cable DisplayPort cable
Certificates and Standards
Licenses	BSMI C-Tick CB CCC CE CECP CEL Grade 1 EAC ENERGY STAR EPA Epeat Gold/Silver (market dependent) FCC Class B ICE ISC KC KCC NOM PSB SEPA TCO EDGE TÜV/S VCCI-B WHQL (Windows 8; Windows 7)	ENERGY STAR FCC Class B ISO9241-307 TÜV/Ergonomics
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F	10 °C - 40 °C 50 °F - 104 °F
Safe Operating Humidity Level	20 % - 80 %	10 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	5 % - 95 %	5 % - 95 %
Max Operating Altitude	5000
Max Storage Altitude	12192

HP ZR2740w

Samsung C34J791