ASUS TUF Gaming VG34VQL1B Monitor Review

Tested using Methodology v1.1
Reviewed Mar 24, 2021 at 09:46 am
ASUS TUF Gaming VG34VQL1B Picture
8.0
Mixed Usage
7.7
Office
8.5
Gaming
7.9
Multimedia
8.0
Media Creation
7.6
HDR Gaming
Size 34"
Resolution 3440x1440
Max Refresh Rate
165 Hz
Pixel Type
VA
Variable Refresh Rate
FreeSync

The ASUS TUF Gaming VG34VQL1B is an excellent curved ultrawide gaming monitor. It has a 34 inch screen with a 21:9 aspect ratio, which gives you more horizontal space than a typical 16:9 display, resulting in greater immersion. Its VA panel can produce deep blacks, making it great for dark rooms, but it comes at the cost of narrow viewing angles, which isn't ideal for playing co-op games or sharing content. It delivers a pretty good HDR experience as it has a wide coverage of the DCI P3 color space, and it gets bright enough to make some highlights pop. Unfortunately, even though its response time is excellent overall, there's visible black smearing in fast-moving content, regardless of the overdrive setting. Also, inverse ghosting may be noticeable when playing at a lower refresh rate.

Our Verdict

8.0 Mixed Usage

The ASUS TUF Gaming VG34VQL1B is a great monitor overall. It's primarily designed for gaming, but it's also well-suited for a wide variety of uses. Its 34 inch high-resolution screen delivers an immersive viewing and gaming experience and provides plenty of space for work. Gaming feels incredibly responsive, and it can deliver a pretty good HDR experience. The viewing angles are mediocre, so it isn't the best for sharing content or playing co-op games.

Pros
  • Gets very bright to combat glare.
  • Displays deep blacks, great for dark rooms.
  • Large high-resolution screen.
Cons
  • Narrow viewing angles.
  • Sub-par ergonomics.
7.7 Office

The ASUS TUF Gaming VG34VQL1B is good for office use. Its 34 inch screen provides plenty of space to work comfortably with multiple windows side-by-side, and it delivers sharp images and text thanks to its high pixel density. It handles reflections well and gets more than bright enough to overcome glare in well-lit environments. Unfortunately, it isn't ideal for sharing work with coworkers due to its narrow viewing angles, and it has limited ergonomic adjustments.

Pros
  • Gets very bright to combat glare.
  • Displays deep blacks, great for dark rooms.
  • Large high-resolution screen.
Cons
  • Narrow viewing angles.
  • Sub-par ergonomics.
8.5 Gaming

The ASUS TUF Gaming VG34VQL1B is an excellent gaming monitor. It has a large, high-resolution screen to provide incredible immersion, and its low input lag and high refresh rate result in amazingly responsive gameplay. Unfortunately, even though it has excellent response time, it's a bit slow in the dark transitions, causing noticeable smearing in fast-moving content. On the upside, it has a high contrast ratio that makes it well-suited for gaming in the dark.

Pros
  • High refresh rate.
  • Displays deep blacks, great for dark rooms.
  • Fast response time.
  • Large high-resolution screen.
Cons
  • Visible smearing behind fast-moving objects.
7.9 Multimedia

The ASUS TUF VG34VQL1B is good for media consumption. It has a large, high-resolution screen that feels incredibly immersive. Its VA panel has a high contrast ratio, making it great for dark room viewing, but it's at the expense of narrow viewing angles, so it isn't ideal for sharing content with others.

Pros
  • Gets very bright to combat glare.
  • Displays deep blacks, great for dark rooms.
  • Large high-resolution screen.
Cons
  • Narrow viewing angles.
  • Sub-par ergonomics.
8.0 Media Creation

The ASUS TUF Gaming VG34VQL1B is great for content creation. Its ultrawide format gives you tons of horizontal screen space, which is great for video editors working with a timeline. It has near-full sRGB and outstanding DCI P3 coverage, superb gradient handling, and no color bleed. Sadly, it doesn't have the best viewing angles, so you lose image accuracy when viewing from the side.

Pros
  • Gets very bright to combat glare.
  • Displays deep blacks, great for dark rooms.
  • Large high-resolution screen.
  • Outstanding DCI P3 coverage.
Cons
  • Narrow viewing angles.
  • Sub-par ergonomics.
7.6 HDR Gaming

The ASUS TUF VG34VQL1B is good for gaming in HDR. It has an excellent contrast ratio, wide DCI P3 coverage, and it gets bright enough to bring out some highlights in HDR content. However, it lacks a local dimming feature. The refresh rate is limited to 144Hz when gaming in HDR, but it shouldn't be noticeable to most people.

Pros
  • Displays deep blacks, great for dark rooms.
  • Fast response time.
  • Large high-resolution screen.
  • Outstanding DCI P3 coverage.
Cons
  • Refresh rate limited to 144Hz in 10-bit over DP.
  • Visible smearing behind fast-moving objects.
  • No local dimming.
  • 8.0 Mixed Usage
  • 7.7 Office
  • 8.5 Gaming
  • 7.9 Multimedia
  • 8.0 Media Creation
  • 7.6 HDR Gaming
  1. Updated Mar 25, 2021: We incorrectly indicated that there are two USB 3.0 ports instead of four. It has been corrected.

Test Results

perceptual testing image
Design
Design
Style
Curved Yes
Curve Radius 1500R
Weight (without stand)
14.6 lbs (6.6 kg)
Weight (with stand)
19.8 lbs (9.0 kg)

The ASUS TUF Gaming VG34VQL1B has a fairly simple design that's nearly identical to the ASUS TUF Gaming VG27AQL1A. It has a curved screen with thin borders on three sides and a thicker bottom bezel. The stand is different from older TUF Gaming models, as the base is now V-shaped instead of a rectangle, and the column is thinner.

Design
Stand
Width
27.6" (70.0 cm)
Depth
10.8" (27.5 cm)

The V-shaped stand is quite wide, but the feet themselves are thin, so you still have a fair amount of space left in front to put other things. It feels sturdy, and the screen only wobbles a bit.

5.5
Design
Ergonomics
Height Adjustment
5.1" (13.0 cm)
Switch Portrait/Landscape No
Swivel Range -10° to 10°
Tilt Range -15° to 5°

The ASUS VG34VQL1B has sub-par ergonomics. As is expected, it can't rotate to portrait mode due to its wide format. It can swivel, but the range is pretty narrow.

Design
Back
Wall Mount VESA 100x100

Except for the branding, the back is plain. There's a removable piece of plastic at the bottom of the stand's column for cable management.

Design
Borders
Borders
0.3" (0.8 cm)

The ASUS VG34VQL1B's borders are thin, great for multi-monitor setups.

Design
Thickness
Thickness (with stand)
10.1" (25.6 cm)
Thickness (without stand)
4.1" (10.3 cm)

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

7.0
Design
Build Quality

The ASUS TUF Gaming VG34VQL1B's build quality is decent. Its all-plastic construction doesn't feel particularly premium, but there are no obvious issues with it. The back flexes a little bit where the inputs are, and the plastic piece used for cable management also feels flimsy.

Picture Quality
8.7
Picture Quality
Contrast
Native Contrast
4781 : 1
Contrast With Local Dimming
N/A

The ASUS TUF Gaming VG34VQL1B has an excellent contrast ratio, which means it can display deep blacks, making it great for dark rooms. It's quite a bit higher than the advertised 4000:1 contrast; however, this can vary between individual units.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

The ASUS TUF VG34VQL1B doesn't have local dimming. The video above is provided for reference only.

8.4
Picture Quality
SDR Peak Brightness
SDR Real Scene
470 cd/m²
SDR Peak 2% Window
458 cd/m²
SDR Peak 10% Window
457 cd/m²
SDR Peak 25% Window
457 cd/m²
SDR Peak 50% Window
456 cd/m²
SDR Peak 100% Window
456 cd/m²
SDR Sustained 2% Window
457 cd/m²
SDR Sustained 10% Window
457 cd/m²
SDR Sustained 25% Window
456 cd/m²
SDR Sustained 50% Window
456 cd/m²
SDR Sustained 100% Window
455 cd/m²
SDR ABL
0.000

The ASUS TUF VG34VQL1B has great SDR peak brightness. It's very consistent across different content, but it doesn't quite reach the advertised 550 cd/m². That said, it's still more than enough to overcome glare, even in bright, sunny rooms. We managed to reach 543 cd/m² using a checkerboard pattern with Contrast set to max, but it comes at the cost of image accuracy.

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

7.3
Picture Quality
HDR Peak Brightness
HDR Real Scene
520 cd/m²
HDR Peak 2% Window
501 cd/m²
HDR Peak 10% Window
501 cd/m²
HDR Peak 25% Window
503 cd/m²
HDR Peak 50% Window
502 cd/m²
HDR Peak 100% Window
503 cd/m²
HDR Sustained 2% Window
500 cd/m²
HDR Sustained 10% Window
501 cd/m²
HDR Sustained 25% Window
502 cd/m²
HDR Sustained 50% Window
502 cd/m²
HDR Sustained 100% Window
502 cd/m²
HDR ABL
0.000

Decent HDR peak brightness. It's very consistent, and it's bright enough to bring out some highlights in HDR content, especially when gaming in the dark. It doesn't achieve the advertised 550 cd/m², but it does meet the DisplayHDR 400 requirement.

We measured the HDR peak brightness in the 'ASUS Gaming HDR' Picture Mode.

6.2
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
36 °
Color Washout From Right
39 °
Color Shift From Left
65 °
Color Shift From Right
65 °
Brightness Loss From Left
36 °
Brightness Loss From Right
37 °
Black Level Raise From Left
20 °
Black Level Raise From Right
23 °
Gamma Shift From Left
11 °
Gamma Shift From Right
13 °

The ASUS TUF Gaming VG34VQL1B has mediocre horizontal viewing angles. Images lose accuracy almost as soon as you move off-center, which isn't ideal for playing co-op games or sharing content.

5.8
Picture Quality
Vertical Viewing Angle
Color Washout From Below
30 °
Color Washout From Above
30 °
Color Shift From Below
69 °
Color Shift From Above
70 °
Brightness Loss From Below
30 °
Brightness Loss From Above
32 °
Black Level Raise From Below
10 °
Black Level Raise From Above
11 °
Gamma Shift From Below
12 °
Gamma Shift From Above
13 °

The vertical viewing angles are sub-par. This means that images look inaccurate if you set the monitor below or above eye level.

9.0
Picture Quality
Gray Uniformity
50% Std. Dev.
1.773 %
50% DSE
0.100 %
5% Std. Dev.
0.587 %
5% DSE
0.056 %

Gray uniformity is outstanding; however, this can vary between units. The sides are just slightly darker, and dirty screen effect is minimal in the center. Uniformity is much better in dark scenes.

6.5
Picture Quality
Black Uniformity
Native Std. Dev.
1.655 %
Std. Dev. w/ L.D.
N/A

Black uniformity is okay. There's visible backlight bleed along the top and bottom edges of the screen. Note that black uniformity can vary between individual units due to manufacturing tolerances.

8.3
Picture Quality
Pre Calibration
Picture Mode
sRGB
Luminance
152 cd/m²
Luminance Settings
N/A
Contrast Setting
N/A
RGB Controls
Default
Gamma Setting
No Gamma Setting
Color Temperature
6232 K
White Balance dE
2.41
Color dE
2.02
Gamma
2.31

The ASUS TUF VG34VQL1B has great accuracy out of the box. Most white balance and color inaccuracies are difficult to spot with the naked eye. The color temperature is on the warmer side, resulting in a slight red/yellow tint. Gamma doesn't follow the sRGB curve at all, making most scenes appear darker than they should. Note that accuracy varies between units.

The 'sRGB' Picture Mode is the most accurate and the one that we used for testing, but using it locks the Contrast and Brightness settings.

9.5
Picture Quality
Post Calibration
Picture Mode
User
Luminance
102 cd/m²
Luminance Settings
23
Contrast Setting
80
RGB Controls
88-92-100
Gamma Setting
No Gamma Setting
Color Temperature
6517 K
White Balance dE
0.62
Color dE
0.74
Gamma
2.18

Accuracy is exceptional after calibration. The remaining inaccuracies aren't noticeable to the naked eye. The color temperature is much closer to our 6500K target. Gamma improved significantly, but some very dark and very bright scenes are now over-brightened.

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.

9.1
Picture Quality
SDR Color Gamut
sRGB xy
97.2 %
Adobe RGB xy
85.2 %
sRGB Picture Mode
User
Adobe RGB Picture Mode
User

The ASUS VG34VQL1B has an outstanding SDR color gamut. It has near-full coverage of the sRGB color space used in most content. Its Adobe RGB coverage is excellent, but it might not be enough for some professional photo editors.

9.4
Picture Quality
SDR Color Volume
sRGB In ICtCp
98.9 %
Adobe RGB In ICtCp
89.9 %
sRGB Picture Mode
User
Adobe RGB Picture Mode
User

Exceptional SDR color volume. It only has trouble displaying bright blues, which is normal for LCDs.

7.7
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
89.8 %
Rec. 2020 xy
65.1 %
DCI P3 Picture Mode
Asus Gaming HDR
Rec. 2020 Picture Mode
Asus Gaming HDR

The ASUS VG34VQL1B has a good HDR color gamut. Its DCI P3 coverage is outstanding, exactly matching the advertised 90%. However, its Rec. 2020 coverage is much more limited.

7.3
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
84.0 %
Rec. 2020 In ICtCp
61.2 %
DCI P3 Picture Mode
Asus Gaming HDR
Rec. 2020 Picture Mode
Asus Gaming HDR

Decent HDR color volume. It has difficulty displaying bright, saturated colors because its HDR brightness is limited.

9.8
Picture Quality
Image Retention
IR After 0 Min Recovery
0.09 %
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 ASUS TUF Gaming VG34VQL1B shows almost no signs of image retention. The small amount detected after displaying a high-contrast image disappears quickly. Note that image retention can vary between units.

9.7
Picture Quality
Gradient
Color Depth
10 Bit

Gradient handling is superb. You shouldn't see any banding in most content.

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

There's no color bleed on this monitor.

7.7
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
5.1 %
Indirect Reflections
3.2 %
Calculated Direct Reflections
1.9 %

The ASUS VG34VQL1B has good reflection handling. Combined with the monitor's high peak brightness, you shouldn't have any visibility issues, even in well-lit environments.

7.5
Picture Quality
Text Clarity
Sub-Pixel Layout
RGB

The ASUS VG34VQL1B has good text clarity. Windows ClearType (top photo) makes diagonal and curved lines look better, like on the R and N. However, it also makes vertical lines thinner, like on the T and I.

Motion
8.8
Motion
Response Time @ Max Refresh Rate
Best Overdrive Setting
20
Rise / Fall Time
4.7 ms
Total Response Time
11.3 ms
Overshoot Error
2.6 %
Dark Rise / Fall Time
6.6 ms
Dark Total Response Time
16.4 ms
Dark Overshoot Error
1.1 %

Variable Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
0ChartTablePhoto
20ChartTablePhoto
40ChartTablePhoto
60ChartTablePhoto
80ChartTablePhoto
100ChartTablePhoto

The ASUS TUF Gaming VG34VQL1B has excellent response time at its max refresh rate, but there's noticeable black smearing behind fast-moving objects, no matter which overdrive setting it's set to, which might be a dealbreaker for some people. The best Variable Overdrive setting is '20' because it has the fastest response times while keeping overshoot at an acceptable level.

7.6
Motion
Response Time @ 60Hz
Best Overdrive Setting
80
Rise / Fall Time
5.3 ms
Total Response Time
15 ms
Overshoot Error
6.8 %
Dark Rise / Fall Time
6.4 ms
Dark Total Response Time
25.1 ms
Dark Overshoot Error
28.7 %

Variable Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
0ChartTablePhoto
20ChartTablePhoto
40ChartTablePhoto
60ChartTablePhoto
80ChartTablePhoto
100ChartTablePhoto

The response time at 60Hz is good overall; however, dark transitions are very slow, making fast motion look blurry in some scenes. The best Variable Overdrive setting at 60Hz is '80', although it has a lot of dark overshoot, causing inverse ghosting. The '60' option is similar; it has less overshoot but slightly slower response times.

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

The ASUS TUF Gaming VG34VQL1B's backlight is entirely flicker-free, which helps eliminate image duplication and reduce eye strain.

7.1
Motion
Black Frame Insertion (BFI)
Black Frame Insertion (BFI)
Yes
BFI Maximum Frequency
165 Hz
BFI Minimum Frequency
100 Hz

The ASUS VG34VQL1B has a Black Frame Insertion feature to improve motion clarity. It's backlight strobing, to be more precise, and it's called ELMB. Unlike some ASUS monitors, it isn't usable while VRR is active, and it only works above 100Hz. Note that the BFI score is based on the minimum and maximum frequency at which it operates, not the BFI's performance.

9.2
Motion
Refresh Rate
Native
165 Hz
Max Refresh Rate
165 Hz
Variable Refresh Rate
Yes
FreeSync
Yes
G-SYNC
Compatible (Tested)
VRR Maximum
165 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors DisplayPort, HDMI

The ASUS VG34VQL1B has a high refresh rate to deliver a smooth and responsive gaming experience. It supports FreeSync natively and is compatible with G-SYNC as well; however, the latter only works over a DisplayPort connection. The refresh rate over HDMI is limited to 100Hz at 8-bit and 60Hz at 10-bit. The refresh rate limit at 10-bit over DisplayPort is 144Hz. Some users have reported flickering when VRR is enabled, but we didn't notice any during testing.

Inputs
9.5
Inputs
Input Lag
Native Resolution
3.8 ms
Native Resolution @ 60Hz
9.1 ms
Variable Refresh Rate