LG 34GP83A-B Monitor Review

Tested using Methodology v1.1
Reviewed Feb 12, 2021 at 09:20 am
LG 34GP83A-B Picture
7.8
Mixed Usage
7.7
Office
8.3
Gaming
7.7
Multimedia
7.9
Media Creation
7.1
HDR Gaming
Size 34"
Resolution 3440x1440
Max Refresh Rate
160 Hz
Pixel Type
IPS
Variable Refresh Rate
Adaptive Sync

The LG 34GP83A-B is a great ultrawide gaming monitor. It has a large, curved screen that provides amazing immersion when gaming and tons of real estate for work. It has fast response time, low input lag, and you can overclock its 144Hz refresh rate up to 160Hz to deliver smoother and more responsive gameplay. Viewing angles are decent, fine for sharing content casually or co-op gaming; however, there's some loss of image accuracy when viewing from the side, so it might not be ideal if you need to share work that requires precision. Unfortunately, while it gets bright enough to overcome glare easily, it isn't enough to deliver a true HDR experience. Also, it has a low contrast ratio that makes blacks appear gray in the dark. On the upside, content creators should be happy to hear that it has full sRGB and excellent Adobe RGB coverage, superb gradient handling, and no color bleed.

Our Verdict

7.8 Mixed Usage

The LG 34GP83A-B is a good monitor for most uses. It has low input lag, exceptional response time, and a high refresh rate, making it great for gaming. Its large, high-resolution screen delivers an immersive viewing experience for media consumption and provides plenty of space for work. While it supports HDR, it can't deliver a satisfying HDR experience because it has a low contrast ratio, no local dimming, and doesn't get bright enough to make highlights pop.

Pros
  • Good visibility in bright settings.
  • Large screen and high resolution.
  • Good text clarity.
Cons
  • Not ideal for dark rooms due to low contrast.
  • Height and tilt adjustments only.
7.7 Office

The LG 34GP83A-B is good for office use. It has a large screen that provides plenty of space for multitasking and a high resolution to render text clearly. There's some loss of image accuracy when viewing from the side; however, it should be fine for sharing documents or spreadsheets that don't require perfect image accuracy. Its reflection handling is just okay, but it gets bright enough to overcome glare. Unfortunately, the stand only allows for tilt and height adjustments.

Pros
  • Good visibility in bright settings.
  • Large screen and high resolution.
  • Good text clarity.
Cons
  • Not ideal for dark rooms due to low contrast.
  • Height and tilt adjustments only.
8.3 Gaming

The LG 34GP83A-B is a great gaming monitor. It has incredibly low input lag and exceptional response time, and its 144Hz refresh rate can be overclocked up to 160Hz for even more responsiveness. It's compatible with FreeSync and G-SYNC to deliver a nearly tear-free gaming experience. Its large, high-resolution screen feels immersive, which is great for playing atmospheric games like RPGs. Unfortunately, it's not the most ideal for gaming in the dark because it has a low contrast ratio that makes blacks appear gray.

Pros
  • High refresh rate and exceptional response time.
  • Large screen and high resolution.
  • Low input lag.
  • VRR support.
Cons
  • Not ideal for dark rooms due to low contrast.
  • Height and tilt adjustments only.
7.7 Multimedia

The LG 34GP83A-B is good for media consumption. It has a large, high-resolution screen that delivers an immersive viewing experience. Viewing angles are decent, although there's still some loss of image accuracy when viewing off-center. It's well-suited for bright rooms because it overcomes glare easily, but it isn't ideal for dark rooms due to its low contrast ratio. Sadly, the stand only allows for height and tilt adjustments.

Pros
  • Good visibility in bright settings.
  • Large screen and high resolution.
  • Low input lag.
Cons
  • Not ideal for dark rooms due to low contrast.
  • Height and tilt adjustments only.
7.9 Media Creation

The LG 34GP83A-B is good for content creation. Its ultrawide format lets you open multiple windows side-by-side and makes it easier to lay out your timeline when editing videos. It has full sRGB and excellent Adobe RGB coverage, superb gradient handling, and no color bleed. The viewing angles are only decent, so it's not the best for sharing work that requires the highest accuracy. Its reflection handling is just okay, but it gets bright enough to fight glare.

Pros
  • Good visibility in bright settings.
  • Large screen and high resolution.
  • Full sRGB and excellent Adobe RGB coverage.
  • Superb gradient handling.
Cons
  • Not ideal for dark rooms due to low contrast.
  • Height and tilt adjustments only.
7.1 HDR Gaming

The LG 34GP83A-B is decent for gaming in HDR. It has low input lag, fast response time, and a high refresh rate to deliver a smooth gaming experience. However, the overall HDR experience is just okay because it has a low contrast ratio, no local dimming, and it doesn't get bright enough to make highlights stand out. Also, enabling HDR limits the refresh rate to 144Hz.

Pros
  • High refresh rate and exceptional response time.
  • Large screen and high resolution.
  • Low input lag.
  • VRR support.
Cons
  • Not ideal for dark rooms due to low contrast.
  • Height and tilt adjustments only.
  • Not bright enough for a true HDR experience.
  • Refresh rate limited to 144Hz in HDR.
  • 7.8 Mixed Usage
  • 7.7 Office
  • 8.3 Gaming
  • 7.7 Multimedia
  • 7.9 Media Creation
  • 7.1 HDR Gaming

Test Results

perceptual testing image
Design
Design
Style
Curved Yes
Curve Radius 1900R
Weight (without stand)
11.9 lbs (5.4 kg)
Weight (with stand)
16.8 lbs (7.6 kg)

The LG 34GP83A-B 34 inch ultrawide gaming monitor looks nearly identical to other monitors in the UltraGear lineup, like the LG 34GN850-B. It has thin borders on all sides and a wide V-shaped stand. The back is plain, except for the red accent ring around the inputs.

Design
Stand
Width
17.9" (45.4 cm)
Depth
12.2" (31.1 cm)

The stand is wide and deep; however, the feet are fairly thin, so you can still use the space between them to put other things. It supports the monitor well, and there's very little wobble.

4.5
Design
Ergonomics
Height Adjustment
4.3" (11.0 cm)
Switch Portrait/Landscape No
Swivel Range No swivel
Tilt Range -15° to 5°

The LG 34GP83A-B has poor ergonomics. It only allows for height and tilt adjustments.

Design
Back
Wall Mount VESA 100x100

Like most LG UltraGear monitors, the back is plain except for the red ring and logo. There's a quick-release feature to remove the stand for VESA-mounting, and the small hook in the middle of the stand is for cable management.

Design
Borders
Borders
0.4" (1.0 cm)

The borders are thin, great for a multi-monitor setup.

Design
Thickness
Thickness (with stand)
10.6" (26.8 cm)
Thickness (without stand)
4.2" (10.6 cm)

Both the screen and the stand are quite thick, so you need a deep desk to put it on.

7.0
Design
Build Quality

The LG 34GP83A-B's build quality is decent, almost identical to the LG 34GN850-B. Although it's all plastic, it feels sturdy, and the stand supports the screen well. It doesn't feel particularly premium, but there are no obvious gaps in the construction. That said, the cable management hook feels pretty flimsy.

Picture Quality
5.9
Picture Quality
Contrast
Native Contrast
956 : 1
Contrast With Local Dimming
N/A

The LG 34GP83A-B has a sub-par contrast ratio, slightly lower than the advertised 1000:1 contrast. This makes blacks look grayish in dark rooms. Note that the contrast ratio can vary between individual units.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

The LG 34GP83A-B 34 inch gaming monitor doesn't have a local dimming feature. The video above is provided for reference only.

8.0
Picture Quality
SDR Peak Brightness
SDR Real Scene
342 cd/m²
SDR Peak 2% Window
388 cd/m²
SDR Peak 10% Window
389 cd/m²
SDR Peak 25% Window
389 cd/m²
SDR Peak 50% Window
390 cd/m²
SDR Peak 100% Window
390 cd/m²
SDR Sustained 2% Window
387 cd/m²
SDR Sustained 10% Window
388 cd/m²
SDR Sustained 25% Window
389 cd/m²
SDR Sustained 50% Window
389 cd/m²
SDR Sustained 100% Window
389 cd/m²
SDR ABL
0.000

The LG 34GP83A-B has great peak brightness in SDR, close to the advertised 400 cd/m². It's very consistent when displaying different content, and it's bright enough to overcome glare in most lighting conditions.

We measured the SDR peak brightness after calibration in the 'Gamer 1' Picture Mode with Brightness set to max.

6.8
Picture Quality
HDR Peak Brightness
HDR Real Scene
398 cd/m²
HDR Peak 2% Window
433 cd/m²
HDR Peak 10% Window
457 cd/m²
HDR Peak 25% Window
457 cd/m²
HDR Peak 50% Window
457 cd/m²
HDR Peak 100% Window
457 cd/m²
HDR Sustained 2% Window
432 cd/m²
HDR Sustained 10% Window
456 cd/m²
HDR Sustained 25% Window
456 cd/m²
HDR Sustained 50% Window
456 cd/m²
HDR Sustained 100% Window
456 cd/m²
HDR ABL
0.003

The HDR peak brightness is okay, close enough to meet the 400 cd/m² requirement for its DisplayHDR 400 certification. It can bring out some highlights in games, especially if you game in a dark environment, but it's not enough for a true cinematic HDR experience.

We measured the HDR peak brightness in the 'Gamer 2' Picture Mode with HDR enabled and Brightness set to max.

7.1
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
44 °
Color Washout From Right
40 °
Color Shift From Left
56 °
Color Shift From Right
53 °
Brightness Loss From Left
49 °
Brightness Loss From Right
46 °
Black Level Raise From Left
33 °
Black Level Raise From Right
19 °
Gamma Shift From Left
40 °
Gamma Shift From Right
30 °

The LG 34GP83A-B has decent horizontal viewing angles. Black level and gamma change much quicker when moving to the right than to the left. It should be fine for co-op gaming or sharing content casually, but it might bother professionals who need perfect image accuracy.

7.3
Picture Quality
Vertical Viewing Angle
Color Washout From Below
32 °
Color Washout From Above
32 °
Color Shift From Below
40 °
Color Shift From Above
48 °
Brightness Loss From Below
34 °
Brightness Loss From Above
35 °
Black Level Raise From Below
70 °
Black Level Raise From Above
70 °
Gamma Shift From Below
40 °
Gamma Shift From Above
40 °

Decent vertical viewing angles. Images remain relatively accurate even if you mount the screen above eye level.

8.4
Picture Quality
Gray Uniformity
50% Std. Dev.
4.933 %
50% DSE
0.102 %
5% Std. Dev.
0.584 %
5% DSE
0.038 %

Impressive gray uniformity. There's some darkening around the edges, particularly at the top corners, but there's almost no dirty screen effect in the center. Uniformity is much better in near-dark scenes. Note that gray uniformity varies between units due to manufacturing tolerances.

6.1
Picture Quality
Black Uniformity
Native Std. Dev.
1.932 %
Std. Dev. w/ L.D.
N/A

Black uniformity is mediocre. There's visible backlight bleed along the top and bottom edges, as well as some clouding throughout the screen. The photo above doesn't show the entire screen due to the monitor's aspect ratio and the photo's crop. Uniformity is significantly worse at the bottom corners, which you can see in this photo. Note that black uniformity varies between units.

8.1
Picture Quality
Pre Calibration
Picture Mode
sRGB
Luminance
130 cd/m²
Luminance Settings
17
Contrast Setting
N/A
RGB Controls
Default
Gamma Setting
Default
Color Temperature
6185 K
White Balance dE
2.64
Color dE
2.10
Gamma
2.11

The LG 34GP83A-B has great accuracy out of the box. Most colors and shades of gray are only slightly inaccurate and hard to spot. The color temperature is warmer than our 6500K target, resulting in a reddish tint. Gamma doesn't follow the sRGB curve all that well; most scenes appear brighter than they should. We used the dedicated sRGB mode for testing; however, enabling this mode locks the Contrast, RGB, and Gamma settings. Note that accuracy varies between individual units.

9.6
Picture Quality
Post Calibration
Picture Mode
Gamer 1
Luminance
101 cd/m²
Luminance Settings
18
Contrast Setting
70
RGB Controls
48-50-50
Gamma Setting
Mode 2
Color Temperature
6556 K
White Balance dE
0.72
Color dE
0.34
Gamma
2.18

Accuracy is superb after calibration. The remaining color inaccuracies aren't visible to the naked eye, and white balance is nearly perfect. The color temperature is much closer to our 6500K target, just a tad on the cooler side. Gamma is much better; however, some dark and bright scenes are still slightly too bright.

You can download our ICC profile calibration here. This is provided for reference only and shouldn't be used, as the calibration values vary per individual unit due to manufacturing tolerances, even for the same model.

9.4
Picture Quality
SDR Color Gamut
sRGB xy
99.9 %
Adobe RGB xy
88.6 %
sRGB Picture Mode
Gamer 1
Adobe RGB Picture Mode
Gamer 1

The LG 34GP83A-B has an exceptional SDR color gamut. It covers the entire sRGB color space used in most content and has excellent Adobe RGB coverage, which is mostly used for photo editing.

9.5
Picture Quality
SDR Color Volume
sRGB In ICtCp
97.6 %
Adobe RGB In ICtCp
91.4 %
sRGB Picture Mode
Gamer 1
Adobe RGB Picture Mode
Gamer 1

Exceptional SDR color volume. It only has trouble displaying dark colors due to its low contrast ratio.

7.5
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
77.7 %
Rec. 2020 xy
71.6 %
DCI P3 Picture Mode
Gamer 2
Rec. 2020 Picture Mode
Gamer 2

The LG 34GP83A-B has a good HDR color gamut. It has good coverage of the DCI P3 color space used in most HDR content, and its coverage of the wider Rec. 2020 is decent.

Note: The DCI P3 coverage is much lower than the advertised 98% coverage. This is normal and is due to the way we measure DCI P3. We measure it by sending a Rec. 2020 signal, but unlike most reviewers, we limit the colors to the DCI P3 primaries. This results in a lower but arguably more accurate measurement.

7.8
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
84.5 %
Rec. 2020 In ICtCp
71.6 %
DCI P3 Picture Mode
Gamer 2
Rec. 2020 Picture Mode
Gamer 2

Good HDR color volume. It has difficulty producing dark colors because it has a low contrast ratio, and it also has trouble with bright blues and greens.

10
Picture Quality
Image Retention
IR After 0 Min Recovery
0.00 %
IR After 2 Min Recovery
0.00 %
IR After 4 Min Recovery
0.00 %
IR After 6 Min Recovery
0.00 %
IR After 8 Min Recovery
0.00 %
IR After 10 Min Recovery
0.00 %

The LG 34GP83A-B doesn't show any sign of image retention after displaying a high-contrast image for ten minutes. However, this varies between individual units.

9.9
Picture Quality
Gradient
Color Depth
10 Bit

Superb gradient handling. You shouldn't see any banding in most content. Setting the color depth to 10-bit limits the refresh rate to 144Hz.

10
Picture Quality
Color Bleed
Pixel Row Error
0.000 %
Pixel Column Error
0.001 %

There's no color bleed on the LG 34GP83A-B.

6.5
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
7.2 %
Indirect Reflections
3.9 %
Calculated Direct Reflections
3.3 %

The reflection handling is okay. You might have some issues with glare if there's sunlight, but the screen gets bright enough to compensate.

7.5
Picture Quality
Text Clarity
Sub-Pixel Layout
RGB

Text clarity is good. Windows ClearType (top photo) makes the letters appear bolder, especially diagonal lines like on the R and N. However, it also makes vertical lines look slightly thinner, like on the T and I.

Motion
9.5
Motion
Response Time @ Max Refresh Rate
Best Overdrive Setting
Fast
Rise / Fall Time
3.3 ms
Total Response Time
6.7 ms
Overshoot Error
3.5 %
Dark Rise / Fall Time
3.3 ms
Dark Total Response Time
7.2 ms
Dark Overshoot Error
6.2 %

Overdrive Setting Response Time Chart Response Time Tables Motion Blur Photo
Off Chart Table Photo
Normal Chart Table Photo
Fast Chart Table Photo
Faster Chart Table Photo

The LG 34GP83A-B has exceptional response time at its max refresh rate. Motion looks clear, and there's almost no blur trail behind fast-moving objects. The best overdrive setting is 'Fast' because it provides the fastest response time while keeping overshoot at an acceptable level.

9.1
Motion
Response Time @ 60Hz
Best Overdrive Setting
Normal
Rise / Fall Time
3.9 ms
Total Response Time
10.1 ms
Overshoot Error
2 %
Dark Rise / Fall Time
3.9 ms
Dark Total Response Time
13.1 ms
Dark Overshoot Error
5.3 %

Overdrive Setting Response Time Chart Response Time Tables Motion Blur Photo
Off Chart Table Photo
Normal Chart Table Photo
Fast Chart Table Photo
Faster Chart Table Photo

The LG 34GP83A-B's response time at 60Hz is outstanding. Although the image isn't as clear as at max refresh rate, there's still little to no blur trail. The best overdrive setting at 60Hz is 'Normal' because 'Off' is slower, and there's too much overshoot with the 'Fast' and 'Faster' options. This means that you might have to change the overdrive setting if your in-game frame rate drops.

10
Motion
Image Flicker
Flicker-Free Yes
PWM Dimming Frequency
0 Hz

The backlight is entirely flicker-free, which helps minimize image duplication and reduce eye strain.

0
Motion
Black Frame Insertion (BFI)
Black Frame Insertion (BFI)
No BFI
BFI Maximum Frequency
N/A
BFI Minimum Frequency
N/A

The LG 34GP83A-B 34 inch gaming monitor doesn't have Black Frame Insertion feature.

9.1
Motion
Refresh Rate
Native
144 Hz
Max Refresh Rate
160 Hz
Variable Refresh Rate
Yes
FreeSync
Yes
G-SYNC
Compatible (NVIDIA Certified)
VRR Maximum
160 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors DisplayPort, HDMI

The LG 34GP83A-B's 144Hz refresh rate can be overclocked up to 160Hz; however, it's only possible over a DisplayPort connection, and Adaptive Sync must be enabled in the monitor's OSD settings. Over HDMI, the refresh rate is limited to 85Hz, and FreeSync only works between 48Hz and 85Hz. G-SYNC only works over DisplayPort.

We noticed that FreeSync is a bit unstable over HDMI and requires many attempts to get it working. Also, it doesn't seem like there's any LFC (Low Frame Compensation) when using HDMI.

Inputs
9.5
Inputs
Input Lag
Native Resolution
4.0 ms
Native Resolution @ 60Hz
9.3 ms
Variable Refresh Rate
5.2 ms
Variable Refresh Rate @ 60Hz
10.8 ms
10 Bit HDR
N/A
Black Frame Insertion (BFI)