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Product comparison · 2 monitors

LG 27UK850 computer monitor vs Samsung C34J791WTU computer monitor

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  • 50specifications compared
  • 30differ
  • 20identical
  • 46known for one product only

Key differences

  • Display diagonal
    • 68.6 cm (27")
    • 86.4 cm (34")
  • Display resolution
    • 3840 x 2160 pixels
    • 3440 x 1440 pixels
  • Native aspect ratio
    • 16:9
    • 21:9
  • Display technology
    • LED
    • QLED
  • HD type
    • 4K Ultra HD
    • UltraWide Quad HD
  • Panel type
    • IPS
    • VA
  • Display brightness (typical)
    • 450 cd/m²
    • 300 cd/m²
  • Response time
    • 5 ms
    • 4 ms

Side by side

Differences highlightedShow differences only
96 specifications
A

LG

27UK850 computer monitor

Model 27UK850

View product
B

Samsung

C34J791WTU computer monitor

Model C34J791WTU

View product
Display12 differ
Display diagonalDiffers68.6 cm (27")86.4 cm (34")
Display resolutionDiffers3840 x 2160 pixels3440 x 1440 pixels
Native aspect ratioDiffers16:921:9
Display technologyDiffersLEDQLED
TouchscreenNoNo
HD typeDiffers4K Ultra HDUltraWide Quad HD
Panel typeDiffersIPSVA
Display brightness (typical)Differs450 cd/m²300 cd/m²
Display brightness (min)Known for one280 cd/m²
Response timeDiffers5 ms4 ms
Display surfaceKnown for oneMatt
Screen shapeDiffersFlatCurved
Supported graphics resolutionsDiffers3840 x 21603440 x 1440
Contrast ratio (typical)Differs1000:13000:1
Dynamic contrast ratio marketing nameMega ContrastMega Contrast
Viewing angle, horizontal178°178°
Viewing angle, vertical178°178°
Pixel pitchKnown for one0.1554 x 0.1554 mm
Digital horizontal frequencyKnown for one30 - 135 kHz
Digital vertical frequencyKnown for one56 - 61 Hz
DDC/CIYesYes
sRGB coverage (typical)Differs99%125%
Factory-calibratedKnown for oneYes
Peak luminance ratioKnown for one88%
Aspect ratioKnown for one21:9
Maximum refresh rateKnown for one100 Hz
Display number of coloursKnown for one16.78 million colours
Viewable size, horizontalKnown for one79.7 cm
Viewable size, verticalKnown for one33.4 cm
Colour gamut standardKnown for onesRGB
Colour gamutKnown for one92%
Quantum dot color technologyKnown for oneYes
Performanceidentical
AMD FreeSyncYesYes
VESA Adaptive Sync supportYesYes
Multimediaidentical
Built-in speaker(s)YesYes
Number of speakers22
RMS rated powerKnown for one10 W
Design1 differ
Product colourDiffersBlack, SilverGrey
Ports & interfaces1 differ
Built-in USB hubYesYes
USB hub version3.2 Gen 1 (3.1 Gen 1)3.2 Gen 1 (3.1 Gen 1)
USB upstream port typeKnown for oneUSB Type-C
Number of upstream portsKnown for one1
USB Type-A downstream ports quantityKnown for one2
HDMI ports quantityDiffers21
DisplayPorts quantity11
Headphone outputsKnown for one1
HDCPKnown for oneYes
VGA (D-Sub) ports quantityKnown for one0
DVI portKnown for oneNo
Audio inputKnown for oneNo
Headphone outKnown for oneYes
DC-in jackKnown for oneYes
Ergonomics2 differ
VESA mountingYesYes
Panel mounting interface100 x 100 mm100 x 100 mm
Cable lock slotKnown for oneNo
Height adjustmentYesYes
Adjustable height (max)Differs11 cm10 cm
PivotKnown for oneYes
Tilt adjustmentYesYes
Tilt angle rangeDiffers-5 - 20°-14 - 22°
On Screen Display (OSD)Known for oneYes
Number of OSD languagesKnown for one18
Plug and PlayYesYes
Black eQualizer functionKnown for oneYes
Picture-in-PictureKnown for oneYes
Power1 differ
Power consumption (typical)Differs41 W65 W
Power consumption (standby)0.5 W0.5 W
Power consumption (off)0.3 W0.3 W
AC input voltage100 - 240 V100 - 240 V
AC input frequencyKnown for one50 - 60 Hz
Energy efficiency class (SDR)Known for oneG
Energy consumption (SDR) per 1000 hoursKnown for one65 kWh
Power consumption (max)Known for one180 W
Energy efficiency scaleKnown for oneA to G
Weight & dimensions8 differ
Width (with stand)Differs613.1 mm808.7 mm
Depth (with stand)Differs234.2 mm309.4 mm
Height (with stand)Differs559.5 mm516 mm
Weight (with stand)Differs6.1 kg7.7 kg
Width (without stand)Differs613.1 mm808.7 mm
Depth (without stand)Differs44.6 mm167 mm
Height (without stand)Differs364.4 mm362.8 mm
Weight (without stand)Differs4.8 kg6.3 kg
Packaging data4 differ
Package widthDiffers690 mm896 mm
Package depthDiffers208 mm371 mm
Package heightDiffers492 mm589 mm
Package weightDiffers9 kg13.9 kg
User Guide on CD-ROMKnown for oneYes
Stand typeKnown for oneHAS stand
Packaging content1 differ
Cables includedDiffersAC, DisplayPort, HDMI, USB Type-CHDMI
Quick start guideKnown for oneYes
Other featuresidentical
Energy efficiency class (legacy scale)Known for oneB
No flickeringKnown for oneYes
Supplied AC adapter typeKnown for oneLED
sRGB coverage (min)Known for one120%
Operational conditionsidentical
Operating temperature (T-T)Known for one10 - 40 °C
Operating relative humidity (H-H)Known for one10 - 80%

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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