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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Stand
    3. Ergonomics
    4. Back
    5. Borders
    6. Thickness
    7. Build Quality
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Pre Calibration
    10. Post Calibration
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Gradient
    17. Color Bleed
    18. Reflections
    19. Text Clarity
  6. Motion
    1. Response Time @ Max Refresh Rate
    2. Response Time @ 60Hz
    3. Image Flicker
    4. Black Frame Insertion (BFI)
    5. Refresh Rate
  7. Inputs
    1. Input Lag
    2. Resolution And Size
    3. Inputs
    4. Total Inputs
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  9. Comments

ASUS ROG Swift PG348Q vs LG 34GK950F-B

Side-by-Side Comparison

Products

ASUS ROG Swift PG348Q
LG 34GK950F-B

Tested using Methodology v1.0

Updated Sep 08, 2021 06:23 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Sep 03, 2021 02:07 AM

SEE PRICE
Amazon.com
ASUS ROG Swift PG348Q Picture
LG 34GK950F-B Picture

Variants

  • PG348Q (34")
  • 34GK950F (34")

Our Verdict

ASUS ROG Swift PG348Q

LG 34GK950F-B

The LG 34GK950F-B is better than the ASUS ROG Swift PG348Q for most uses, but some people might prefer the ASUS for gaming. The LG supports HDR, has an optional black frame insertion feature, and has a higher refresh rate. The biggest difference for gamers is that the LG supports AMD's FreeSync variable refresh rate technology, whereas the ASUS supports NVIDIA's G-SYNC technology.

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Notice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our monitors test methodology.

Main Differences for

Threshold 

0.10

Mixed Usage 

7.6
7.8

Vertical Viewing Angle 
 

7.8
6.8

Full Comparison

Design

Style  

Design Picture  

ASUS ROG Swift PG348Q Design Picture
LG 34GK950F-B Design Picture

Size  

34"
34"

Curved  

Yes
Yes

Curve Radius  

3800R
1800R

Weight (without stand) 
 

17.2 lbs (7.8 kg)
12.8 lbs (5.8 kg)

Weight (with stand) 
 

24.9 lbs (11.3 kg)
16.8 lbs (7.6 kg)

Show text

Stand  

Stand Picture  

ASUS ROG Swift PG348Q Stand Picture
LG 34GK950F-B Stand Picture

Width 
 

21.0" (53.3 cm)
22.1" (56.1 cm)

Depth 
 

13.5" (34.3 cm)
11.2" (28.4 cm)

Show text

Ergonomics 
 

6.1
5.1

Ergonomics Picture  

ASUS ROG Swift PG348Q Ergonomics Picture
LG 34GK950F-B Ergonomics Picture

Height Adjustment 
 

4.4" (11.2 cm)
4.3" (10.9 cm)

Switch Portrait/Landscape  

No
No

Swivel Range  

-55° to 55°
-15° to 15°

Tilt Range  

-20° to 2.5°
-15° to 5°

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Back  

Back Picture  

ASUS ROG Swift PG348Q Back Picture
LG 34GK950F-B Back Picture

Wall Mount  

VESA 100x100
VESA 100x100

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Borders  

Borders Picture  

ASUS ROG Swift PG348Q Borders Picture
LG 34GK950F-B Borders Picture

Borders 
 

0.5" (1.3 cm)
0.4" (1.0 cm)

Show text

Thickness  

Thickness Picture  

ASUS ROG Swift PG348Q Thickness Picture
LG 34GK950F-B Thickness Picture

Thickness (with stand) 
 

10.8" (27.4 cm)
10.1" (25.7 cm)

Thickness (without stand) 
 

4.0" (10.2 cm)
4.2" (10.7 cm)

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Build Quality 
 

8.0
7.0

Build Quality Picture  

ASUS ROG Swift PG348Q Build Quality Picture
LG 34GK950F-B Build Quality Picture

Show text

Picture Quality

Contrast 
 

6.3
5.6

Checkerboard Picture  

ASUS ROG Swift PG348Q Checkerboard Picture
LG 34GK950F-B Checkerboard Picture

LCD Type 
 

IPS
IPS

Native Contrast 
 

1,195 : 1
810 : 1

Contrast With Local Dimming 
 

N/A
N/A

Show text

Local Dimming 
 

0.0
0.0

Local Dimming Video  

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

Edge
Edge

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SDR Peak Brightness 
 

7.6
7.9

SDR Real Scene 
 

294 cd/m²
350 cd/m²

SDR Peak 2% Window 
 

325 cd/m²
332 cd/m²

SDR Peak 10% Window 
 

326 cd/m²
332 cd/m²

SDR Peak 25% Window 
 

326 cd/m²
333 cd/m²

SDR Peak 50% Window 
 

326 cd/m²
333 cd/m²

SDR Peak 100% Window 
 

326 cd/m²
333 cd/m²

SDR Sustained 2% Window 
 

325 cd/m²
332 cd/m²

SDR Sustained 10% Window 
 

326 cd/m²
332 cd/m²

SDR Sustained 25% Window 
 

326 cd/m²
333 cd/m²

SDR Sustained 50% Window 
 

326 cd/m²
333 cd/m²

SDR Sustained 100% Window 
 

326 cd/m²
333 cd/m²

SDR ABL 
 

0.000
0.000

Show text

HDR Peak Brightness 
 

0.0
6.8

HDR Real Scene 
 

N/A
412 cd/m²

HDR Peak 2% Window 
 

N/A
401 cd/m²

HDR Peak 10% Window 
 

N/A
401 cd/m²

HDR Peak 25% Window 
 

N/A
402 cd/m²

HDR Peak 50% Window 
 

N/A
402 cd/m²

HDR Peak 100% Window 
 

N/A
413 cd/m²

HDR Sustained 2% Window 
 

N/A
400 cd/m²

HDR Sustained 10% Window 
 

N/A
401 cd/m²

HDR Sustained 25% Window 
 

N/A
402 cd/m²

HDR Sustained 50% Window 
 

N/A
402 cd/m²

HDR Sustained 100% Window 
 

N/A
402 cd/m²

HDR ABL 
 

N/A
0.000

Show text

Horizontal Viewing Angle 
 

7.8
8.7

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

LG 34GK950F-B Horizontal Chroma Graph

Color Washout From Left 
 

49°

Color Washout From Right 
 

48°

Horizontal Color Shift Picture  

ASUS ROG Swift PG348Q Horizontal Color Shift Picture

Horizontal Hue Graph  

LG 34GK950F-B Horizontal Hue Graph

Color Shift From Left 
 

47°
59°

Color Shift From Right 
 

47°
56°

Horizontal Brightness Picture  

ASUS ROG Swift PG348Q Horizontal Brightness Picture

Horizontal Black Level Picture  

ASUS ROG Swift PG348Q Horizontal Black Level Picture

Horizontal Lightness Graph  

LG 34GK950F-B Horizontal Lightness Graph

Brightness Loss From Left 
 

53°
50°

Brightness Loss From Right 
 

53°
50°

Black Level Raise From Left 
 

75°
70°

Black Level Raise From Right 
 

75°
70°

Curve Radius  

3,800R

Gamma Shift From Left 
 

60°

Gamma Shift From Right 
 

62°

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Vertical Viewing Angle 
 

7.8
6.8

Vertical Viewing Angle Video  

Vertical Chroma Graph  

LG 34GK950F-B Vertical Chroma Graph

Color Washout From Below 
 

28°

Color Washout From Above 
 

29°

Vertical Color Shift Picture  

ASUS ROG Swift PG348Q Vertical Color Shift Picture

Vertical Hue Graph  

LG 34GK950F-B Vertical Hue Graph

Color Shift From Below 
 

25°
35°

Color Shift From Above 
 

26°
39°

Vertical Brightness Picture  

ASUS ROG Swift PG348Q Vertical Brightness Picture

Vertical Black Level Picture  

ASUS ROG Swift PG348Q Vertical Black Level Picture

Vertical Lightness Graph  

LG 34GK950F-B Vertical Lightness Graph

Brightness Loss From Below 
 

31°
31°

Brightness Loss From Above 
 

31°
33°

Black Level Raise From Below 
 

75°
70°

Black Level Raise From Above 
 

75°
70°

Gamma Shift From Below 
 

29°

Gamma Shift From Above 
 

32°

Show text

Gray Uniformity 
 

8.5
8.6

50% Uniformity Picture  

ASUS ROG Swift PG348Q 50% Uniformity Picture
LG 34GK950F-B 50% Uniformity Picture

50% Std. Dev. 
 

3.468%
2.988%

50% DSE 
 

0.116%
0.116%

5% Uniformity Picture  

ASUS ROG Swift PG348Q 5% Uniformity Picture
LG 34GK950F-B 5% Uniformity Picture

5% Std. Dev. 
 

0.326%
0.354%

5% DSE 
 

0.034%
0.039%

Show text

Black Uniformity 
 

2.9
4.3

Native Black Uniformity Picture  

ASUS ROG Swift PG348Q Native Black Uniformity Picture
LG 34GK950F-B Native Black Uniformity Picture

Native Std. Dev. 
 

4.041%
3.155%

Black Uniformity Picture With Local Dimming  

ASUS ROG Swift PG348Q Black Uniformity Picture With Local Dimming
LG 34GK950F-B Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A

Show text

Pre Calibration 
 

5.5
8.1

Pre Calibration Picture  

ASUS ROG Swift PG348Q Pre Calibration Picture
LG 34GK950F-B Pre Calibration Picture

Pre Gamma Curve Picture  

ASUS ROG Swift PG348Q Pre Gamma Curve Picture
LG 34GK950F-B Pre Gamma Curve Picture

Pre Color Picture  

ASUS ROG Swift PG348Q Pre Color Picture
LG 34GK950F-B Pre Color Picture

Picture Mode 
 

Racing Mode
Srgb

Luminance 
 

280 cd/m²
180 cd/m²

Luminance Settings 
 

80
30

Contrast Setting 
 

50
N/A

RGB Controls 
 

100-100-100
Default

Gamma Setting 
 

Default

Color Temperature 
 

7,077 K
6,183 K

White Balance dE 
 

5.09
2.79

Color dE 
 

4.20
2.13

Gamma 
 

1.97
2.25

Show text

Post Calibration 
 

9.4
9.6

Post Calibration Picture  

ASUS ROG Swift PG348Q Post Calibration Picture
LG 34GK950F-B Post Calibration Picture

Post Gamma Curve Picture  

ASUS ROG Swift PG348Q Post Gamma Curve Picture
LG 34GK950F-B Post Gamma Curve Picture

Post Color Picture  

ASUS ROG Swift PG348Q Post Color Picture
LG 34GK950F-B Post Color Picture

Picture Mode 
 

Racing Mode
Gamer 2

Luminance 
 

99 cd/m²
101 cd/m²

Luminance Settings 
 

21
14

Contrast Setting 
 

50
60

RGB Controls 
 

100-100-94
51-50-51

Gamma Setting 
 

Mode 2

Color Temperature 
 

6,470 K
6,467 K

White Balance dE 
 

0.95
0.69

Color dE 
 

0.62
0.57

Gamma 
 

2.18
2.17

Show text

SDR Color Gamut 
 

8.9
9.3

Color Gamut sRGB Picture  

ASUS ROG Swift PG348Q Color Gamut sRGB Picture
LG 34GK950F-B Color Gamut sRGB Picture

sRGB xy 
 

99.9%
99.2%

Color Gamut ARGB Picture  

ASUS ROG Swift PG348Q Color Gamut ARGB Picture
LG 34GK950F-B Color Gamut ARGB Picture

Adobe RGB xy 
 

77.3%
86.8%

sRGB Picture Mode 
 

Gamer 2

Adobe RGB Picture Mode 
 

Gamer 2

Show text

SDR Color Volume 
 

9.1
9.4

sRGB Color Volume ITP Picture  

ASUS ROG Swift PG348Q sRGB Color Volume ITP Picture
LG 34GK950F-B sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

97.9%
97.4%

Adobe RGB Color Volume ITP Picture  

ASUS ROG Swift PG348Q Adobe RGB Color Volume ITP Picture
LG 34GK950F-B Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

82.5%
91.4%

sRGB Picture Mode 
 

Gamer 2

Adobe RGB Picture Mode 
 

Gamer 2

Show text

HDR Color Gamut 
 

0.0
7.7

Wide Color Gamut 
 

No
Yes

Color Gamut DCI-P3 Picture  

ASUS ROG Swift PG348Q Color Gamut DCI-P3 Picture
LG 34GK950F-B Color Gamut DCI-P3 Picture

DCI P3 xy 
 

N/A
85.4%

Color Gamut Rec.2020 Picture  

ASUS ROG Swift PG348Q Color Gamut Rec.2020 Picture
LG 34GK950F-B Color Gamut Rec.2020 Picture

Rec. 2020 xy 
 

N/A
69.5%

DCI P3 Picture Mode 
 

Gamer 2

Rec. 2020 Picture Mode 
 

Gamer 2

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HDR Color Volume 
 

0.0
6.5

P3 Color Volume ITP Picture  

ASUS ROG Swift PG348Q P3 Color Volume ITP Picture
LG 34GK950F-B P3 Color Volume ITP Picture

DCI-P3 In ICtCp 
 

N/A
67.1%

2020 Color Volume ITP Picture  

ASUS ROG Swift PG348Q 2020 Color Volume ITP Picture
LG 34GK950F-B 2020 Color Volume ITP Picture

Rec. 2020 In ICtCp 
 

N/A
61.6%

DCI P3 Picture Mode 
 

Gamer 2

Rec. 2020 Picture Mode 
 

Gamer 2

Show text

Image Retention 
 

10
10

Image Retention Picture  

ASUS ROG Swift PG348Q Image Retention Picture
LG 34GK950F-B Image Retention Picture

IR After 0 Min Recovery 
 

0.00%
0.00%

IR After 2 Min Recovery 
 

0.00%
0.00%

IR After 4 Min Recovery 
 

0.00%
0.00%

IR After 6 Min Recovery 
 

0.00%
0.00%

IR After 8 Min Recovery 
 

0.00%
0.00%

IR After 10 Min Recovery 
 

0.00%
0.00%

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Gradient 
 

8.6
9.7

Gradient Picture  

ASUS ROG Swift PG348Q Gradient Picture
LG 34GK950F-B Gradient Picture

Color Depth 
 

8 Bit
10 Bit

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Color Bleed 
 

10
9.3

Color Bleed Horizontal  

ASUS ROG Swift PG348Q Color Bleed Horizontal
LG 34GK950F-B Color Bleed Horizontal

Pixel Row Error 
 

0.000%
0.003%

Color Bleed Vertical  

ASUS ROG Swift PG348Q Color Bleed Vertical
LG 34GK950F-B Color Bleed Vertical

Pixel Column Error 
 

0.000%
0.137%

Show text

Reflections 
 

7.5
6.4

Average Room  

ASUS ROG Swift PG348Q Average Room
LG 34GK950F-B Average Room

Average Room Off Picture  

ASUS ROG Swift PG348Q Average Room Off Picture
LG 34GK950F-B Average Room Off Picture

Bright Room Off Picture  

ASUS ROG Swift PG348Q Bright Room Off Picture
LG 34GK950F-B Bright Room Off Picture

Screen Finish 
 

Matte

Total Reflections 
 

7.4%

Indirect Reflections 
 

3.7%

Calculated Direct Reflections 
 

3.6%

Show text

Text Clarity 
 

7.5

ClearType On  

LG 34GK950F-B ClearType On

Pixel Type 
 

IPS
IPS

ClearType Off  

LG 34GK950F-B ClearType Off

Pixels  

LG 34GK950F-B Pixels

Sub-Pixel Layout 
 

RGB

Show text

Motion

Response Time @ Max Refresh Rate 
 

9.2
9.0

Motion Blur Picture  

ASUS ROG Swift PG348Q Motion Blur Picture

Motion Blur Picture  

LG 34GK950F-B Motion Blur Picture

Response Time Chart  

ASUS ROG Swift PG348Q Response Time Chart

Response Time Table  

LG 34GK950F-B Response Time Table

Best Overdrive Setting 
 

Normal
Fast

Rise / Fall Time 
 

4.1 ms
4.2 ms

Total Response Time 
 

10.9 ms
9.7 ms

Overshoot Error 
 

5.7%

Dark Rise / Fall Time 
 

4.1 ms

Dark Total Response Time 
 

10.5 ms

Dark Overshoot Error 
 

9.0%

Show text

Response Time @ 60Hz 
 

8.2

Motion Blur Picture  

LG 34GK950F-B Motion Blur Picture

Response Time Table  

LG 34GK950F-B Response Time Table

Best Overdrive Setting 
 

Normal

Rise / Fall Time 
 

5.5 ms

Total Response Time 
 

15 ms

Overshoot Error 
 

3.8%

Dark Rise / Fall Time 
 

5.7 ms

Dark Total Response Time 
 

15.8 ms

Dark Overshoot Error 
 

7.2%

Show text

Image Flicker 
 

7.5
10

Backlight Picture  

ASUS ROG Swift PG348Q Backlight Picture
LG 34GK950F-B Backlight Picture

Flicker-Free  

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

Black Frame Insertion (BFI) 
 

No
Yes

BFI Picture  

ASUS ROG Swift PG348Q BFI Picture
LG 34GK950F-B BFI Picture

BFI Frequency Picture  

ASUS ROG Swift PG348Q BFI Frequency Picture
LG 34GK950F-B BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
144 Hz

BFI Minimum Frequency 
 

N/A
120 Hz

Show text

Black Frame Insertion (BFI) 
 

6.0

Black Frame Insertion (BFI) 
 

No
Yes

BFI Picture  

ASUS ROG Swift PG348Q BFI Picture
LG 34GK950F-B BFI Picture

BFI Frequency Picture  

ASUS ROG Swift PG348Q BFI Frequency Picture
LG 34GK950F-B BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
144 Hz

BFI Minimum Frequency 
 

N/A
120 Hz

Show text

Refresh Rate 
 

8.1
9.0

Variable Refresh Rate 
 

G-Sync
FreeSync

Native 
 

144 Hz

Max Refresh Rate 
 

60 Hz
144 Hz

Factory Overclock 
 

100 Hz

Variable Refresh Rate 
 

G-Sync
Yes

FreeSync 
 

Yes

G-SYNC 
 

Yes (Native)
Compatible (Tested)

VRR Maximum 
 

60 Hz
144 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Maximum With OC 
 

100 Hz

VRR Supported Connectors  

DisplayPort
DisplayPort, HDMI

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Inputs

Input Lag 
 

9.1
9.4

Native Resolution 
 

7.6 ms
4.2 ms

Non-Native Res @ Native Refresh 
 

N/A

Native Resolution @ 60Hz 
 

13.2 ms
23.8 ms

Variable Refresh Rate 
 

7.9 ms
5.2 ms

Variable Refresh Rate @ 60Hz 
 

10.1 ms

10 Bit HDR 
 

N/A
4.2 ms

Black Frame Insertion (BFI) 
 

N/A
7.2 ms

Show text

Resolution And Size 
 

8.9
8.7

Native Resolution  

3440 x 1440
3440 x 1440

Aspect Ratio  

21:9
21:9

Megapixels  

5.0 MP
5.0 MP

Pixel Density 
 

109 PPI
109 PPI

Screen Diagonal  

34.1"
34.1"

Screen Area  

415 in²
415 in²

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Inputs  

Inputs 1  

ASUS ROG Swift PG348Q Inputs 1
LG 34GK950F-B Inputs 1

Inputs 2  

ASUS ROG Swift PG348Q Inputs 2
LG 34GK950F-B Inputs 2

Total Inputs  

DisplayPort  

1 (DP 1.2)
1 (DP 1.4)

Mini DisplayPort  

No
No

HDMI  

1 (HDMI 1.4)
2 (HDMI 2.0)

DVI  

No
No

VGA  

No
No

DisplayPort Out  

No
No

USB  

4 (USB 3.0)
2 (USB 3.0)

USB C  

No
No

Analog Audio Out 3.5mm  

1
1

Microphone In 3.5mm  

No
No

Digital Optical Audio Out  

No
No

Analog Audio Out RCA  

No
No

Power Supply  

Internal
External Brick

Show text

Features

Additional Features 
 

RGB Illumination 
 

No

Speakers 
 

Yes
No

HDR10  

No
Yes

Multiple Input Display 
 

No
No

Show text

On-Screen Display (OSD)  

OSD Picture  

ASUS ROG Swift PG348Q OSD Picture
LG 34GK950F-B OSD Picture

Controls  

Controls Picture  

ASUS ROG Swift PG348Q Controls Picture
LG 34GK950F-B Controls Picture

Show text

In The Box  

In The Box Picture  

ASUS ROG Swift PG348Q In The Box Picture
LG 34GK950F-B In The Box Picture

Show text

ASUS ROG Swift PG348Q

LG 34GK950F-B

Comments

  1. Comparison

ASUS ROG Swift PG348Q vs LG 34GK950F-B: Main Discussion

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