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ASUS ROG Swift OLED PG27AQDM vs ROG Swift OLED PG34WCDM

Which Monitor Is Better?

    Top
    Main Differences
    Design
      StyleAccelerated Longevity TestBuild QualityErgonomicsStandDisplayControlsIn The Box
    Picture Quality
      ContrastLocal DimmingSDR BrightnessHDR BrightnessGray UniformityBlack UniformityVertical Viewing AngleColor Accuracy (Pre-Calibration)Color Accuracy (Post-Calibration)SDR Color GamutHDR Color GamutHDR Color VolumeViewing AngleText ClarityDirect ReflectionsReflectionsAmbient Black Level RaiseTotal Reflected LightGradient
    Motion
      Refresh RateVariable Refresh Rate (VRR)VRR Motion PerformanceRefresh Rate ComplianceCAD @ Max Refresh RateResponse Time @ Max Refresh RateCAD @ 120HzResponse Time @ 120HzCAD @ 60HzResponse Time @ 60HzBacklight Strobing (BFI)VRR FlickerImage Flicker
    Inputs
      Input LagResolutionPS5 CompatibilityXbox Series X|S CompatibilityInputs PhotosInputsUSBmacOS Compatibility
    Features
      Additional FeaturesOn-Screen Display (OSD)
    Comments

Products

ASUS ROG Swift OLED PG27AQDM
ASUS ROG Swift OLED PG34WCDM

Tested using Methodology v2.1.1

Updated Nov 07, 2025 02:27 PM

SEE PRICE
B&H

Tested using Methodology v2.0.1

Updated Aug 12, 2025 07:13 PM

SEE PRICE
Amazon.com
ASUS ROG Swift OLED PG27AQDM Picture
ASUS ROG Swift OLED PG34WCDM Picture
Max Refresh Rate
240 Hz
Size
27"
Panel Type
OLED
Native Resolution
2560 x 1440
Max Refresh Rate
240 Hz
Size
34"
Panel Type
OLED
Native Resolution
3440 x 1440

Our Verdict

ASUS ROG Swift OLED PG27AQDM

ASUS ROG Swift OLED PG34WCDM

The ASUS ROG Swift OLED PG34WCDM and the ASUS ROG Swift OLED PG27AQDM are OLED gaming displays with a 240Hz refresh rate. However, the PG34WCDM is significantly wider than the PG27AQDM, so if immersion is important, you may find its wider screen creates a more immersive gaming experience. Both are fantastic for gaming and watching HDR content. The PG27AQDM works better for console gaming and is the better choice if more vivid HDR colors are important to you. However, the PG34WCDM's brighter display is a better choice if you're gaming in a room with more ambient light.

0 

Variants

  • ROG Swift OLED PG27AQDM (27")
  • ROG Swift OLED PG34WCDM (34")

Review

See ASUS ROG Swift OLED PG27AQDM Review
See ASUS ROG Swift OLED PG34WCDM Review
149 
12 

Check Price

27"
ROG Swift OLED PG27AQDM
SEE PRICE
B&H
34"
ROG Swift OLED PG34WCDM
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Amazon.com
27"
ROG Swift OLED PG27AQDM
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Amazon.com
34"
ROG Swift OLED PG34WCDM
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27"
ROG Swift OLED PG27AQDM
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34"
ROG Swift OLED PG34WCDM
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27"
ROG Swift OLED PG27AQDM
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34"
ROG Swift OLED PG34WCDM
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ROG Swift OLED PG34WCDM
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Main Differences for
PC Gaming

Threshold 

0.10

PC Gaming 
 

9.0
9.0
No major differences between these monitors for pc gaming. See full list of tests below.

Full Comparison

Design

Style 
 

Design Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Design Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Design Picture

Curved 
 

No
Yes

Curve Radius 
 

Not Curved
800R
Show Text 

Accelerated Longevity Test 
 

Uniformity Pictures  

Longevity Graph  

Build Quality 
 

9.0
8.5

Build Quality Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Build Quality Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Build Quality Picture
Show Text 

Ergonomics 
 

8.7
7.2

Ergonomics Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Ergonomics Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Ergonomics Picture

Back Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Back Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Back Picture

Height Adjustment 
 

4.3" (10.8 cm)
4.3" (11.0 cm)

Min Height To Top Of Panel 
 

16.9" (42.8 cm)
16.8" (42.7 cm)

Tilt Range 
 

-17.5° to 5°
-20° to 5°

Rotate Portrait/Landscape 
 

Yes, Both Ways
No

Swivel Range 
 

-30° to 30°
-15° to 15°

Wall Mount 
 

VESA 100x100
VESA 100x100
Show Text 

Stand 
 

Stand Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Stand Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Stand Picture

Thickness Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Thickness Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Thickness Picture

Base Width 
 

21.2" (53.9 cm)
24.3" (61.6 cm)

Base Depth 
 

10.4" (26.5 cm)
11.5" (29.2 cm)

Thickness (With Display) 
 

9.0" (22.8 cm)
12.3" (31.2 cm)

Weight (With Display) 
 

15.2 lbs (6.9 kg)
18.4 lbs (8.3 kg)
Show Text 

Display 
 

Display Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Display Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Display Picture

Size 
 

27"
34"

Housing Width 
 

23.8" (60.5 cm)
31.2" (79.2 cm)

Housing Height 
 

13.9" (35.2 cm)
15.0" (38.0 cm)

Thickness (Without Stand) 
 

2.0" (5.0 cm)
6.8" (17.2 cm)

Weight (Without Stand) 
 

9.2 lbs (4.2 kg)
12.5 lbs (5.7 kg)

Borders Size (Bezels)  
 

0.3" (0.7 cm)
0.4" (1.0 cm)
Show Text 

Controls 
 

Controls Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Controls Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Controls Picture
Show Text 

In The Box 
 

In The Box Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM In The Box Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM In The Box Picture

Power Supply 
 

External Brick
External Brick
Show Text 
Picture Quality

Contrast 
 

10
10

Checkerboard Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Checkerboard Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Checkerboard Picture

Native Contrast 
 

Inf : 1
Inf : 1

Contrast With Local Dimming 
 

Inf : 1
Inf : 1
Show Text 

Local Dimming 
 

10
10

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

No Backlight
No Backlight
Show Text 

SDR Brightness 
 

6.6
7.4

Real Scene 
 

238 cd/m²
273 cd/m²

Peak 2% Window 
 

240 cd/m²
380 cd/m²

Peak 10% Window 
 

244 cd/m²
381 cd/m²

Peak 25% Window 
 

247 cd/m²
388 cd/m²

Peak 50% Window 
 

228 cd/m²
289 cd/m²

Peak 100% Window 
 

163 cd/m²
239 cd/m²

Sustained 2% Window 
 

230 cd/m²
376 cd/m²

Sustained 10% Window 
 

242 cd/m²
377 cd/m²

Sustained 25% Window 
 

246 cd/m²
384 cd/m²

Sustained 50% Window 
 

227 cd/m²
287 cd/m²

Sustained 100% Window 
 

162 cd/m²
238 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.028
0.033

Minimum Brightness 
 

13 cd/m²
20 cd/m²
Show Text 

HDR Brightness 
 

7.8
7.0

EOTF 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM EOTF
Compare High-Res
ASUS ROG Swift OLED PG34WCDM EOTF

VESA DisplayHDR Certification 
 

No Certification
DisplayHDR TRUE BLACK 400

Real Scene 
 

739 cd/m²
443 cd/m²

Peak 2% Window 
 

904 cd/m²
1,108 cd/m²

Peak 10% Window 
 

923 cd/m²
716 cd/m²

Peak 25% Window 
 

480 cd/m²
407 cd/m²

Peak 50% Window 
 

200 cd/m²
298 cd/m²

Peak 100% Window 
 

197 cd/m²
246 cd/m²

Sustained 2% Window 
 

878 cd/m²
1,080 cd/m²

Sustained 10% Window 
 

904 cd/m²
707 cd/m²

Sustained 25% Window 
 

476 cd/m²
403 cd/m²

Sustained 50% Window 
 

199 cd/m²
298 cd/m²

Sustained 100% Window 
 

196 cd/m²
246 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.109
0.088
Show Text 

Gray Uniformity 
 

8.8
8.3

50% Uniformity Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM 50% Uniformity Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM 50% Uniformity Picture

50% Std. Dev. 
 

1.261%
2.669%

50% DSE 
 

0.120%
0.132%
Show Text 

Black Uniformity 
 

10
10

Native Black Uniformity Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Native Black Uniformity Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Native Black Uniformity Picture

Native Std. Dev. 
 

0.186%
0.165%

Black Uniformity Picture With Local Dimming 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Black Uniformity Picture With Local Dimming
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A
Show Text 

Vertical Viewing Angle 
 

10

Vertical Viewing Angle Video  

Vertical Chroma Graph  

ASUS ROG Swift OLED PG34WCDM Vertical Chroma Graph

Color Washout From Below 
 

70°

Color Washout From Above 
 

70°

Vertical Hue Graph  

ASUS ROG Swift OLED PG34WCDM Vertical Hue Graph

Color Shift From Below 
 

70°

Color Shift From Above 
 

70°

Vertical Lightness Graph  

ASUS ROG Swift OLED PG34WCDM Vertical Lightness Graph

Brightness Loss From Below 
 

70°

Brightness Loss From Above 
 

70°

Black Level Raise From Below 
 

70°

Black Level Raise From Above 
 

70°

Gamma Shift From Below 
 

70°

Gamma Shift From Above 
 

70°
Show Text 

Color Accuracy (Pre-Calibration) 
 

8.9
8.5

Pre Calibration Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Pre Calibration Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pre Calibration Picture

Pre Gamma Curve Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Pre Gamma Curve Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pre Gamma Curve Picture

Pre Color Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Pre Color Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pre Color Picture

Picture Mode 
 

sRGB
sRGB Cal Mode

sRGB Gamut Area xy 
 

101.4%
104.8%

White Balance dE (Avg.) 
 

1.89
2.41

Color Temperature (Avg.) 
 

6,544 K
6,275 K

Gamma (Avg.) 
 

2.04
2.29

Color dE (Avg.) 
 

2.05
1.92

Contrast Setting 
 

N/A
80

RGB Settings 
 

Default
Default

Gamma Setting 
 

2.2
Default

Brightness Setting 
 

100
26

Measured Brightness 
 

255 cd/m²
131 cd/m²

Brightness Locked 
 

No
No
Show Text 

Color Accuracy (Post-Calibration) 
 

8.9
9.1

Post Calibration Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Post Calibration Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Post Calibration Picture

Post Gamma Curve Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Post Gamma Curve Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Post Gamma Curve Picture

Post Color Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Post Color Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Post Color Picture

Picture Mode 
 

User Mode
Racing Mode

sRGB Gamut Area xy 
 

106.8%
103.3%

White Balance dE (Avg.) 
 

0.56
0.66

Color Temperature (Avg.) 
 

6,528 K
6,512 K

Gamma (Avg.) 
 

2.18
2.20

Color dE (Avg.) 
 

1.16
1.87

Contrast Setting 
 

60
80

RGB Settings 
 

98-93-79
98-99-100

Gamma Setting 
 

2.2
2.2

Brightness Setting 
 

46
18

Measured Brightness 
 

100 cd/m²
99 cd/m²

ICC Profile 
 

Download
Download
Show Text 

SDR Color Gamut 
 

9.7
9.6

sRGB Color Gamut Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM sRGB Color Gamut Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM sRGB Color Gamut Picture

sRGB Coverage xy 
 

100.0%
100.0%

sRGB Picture Mode 
 

User Mode
Racing Mode

Adobe RGB Color Gamut Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Adobe RGB Color Gamut Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Adobe RGB Color Gamut Picture

Adobe RGB Coverage xy 
 

90.6%
89.6%

Adobe RGB Picture Mode 
 

User Mode
Racing Mode
Show Text 

HDR Color Gamut 
 

8.5
9.0

Wide Color Gamut 
 

Yes
Yes

DCI-P3 Color Gamut Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM DCI-P3 Color Gamut Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM DCI-P3 Color Gamut Picture

DCI-P3 Coverage xy 
 

93.8%
96.6%

DCI-P3 Picture Mode 
 

Asus Gaming HDR
Asus Gaming HDR

Rec. 2020 Color Gamut Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Rec. 2020 Color Gamut Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Rec. 2020 Color Gamut Picture

Rec. 2020 Coverage xy 
 

67.3%
70.1%

Rec. 2020 Picture Mode 
 

Asus Gaming HDR
Asus Gaming HDR
Show Text 

HDR Color Volume 
 

7.8
7.8

DCI-P3 Color Volume ITP Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM DCI-P3 Color Volume ITP Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM DCI-P3 Color Volume ITP Picture

1,000 cd/m² DCI-P3 Coverage ICtCp 
 

75.9%
77.0%

DCI-P3 Picture Mode 
 

Asus Gaming HDR
Asus Gaming HDR

Rec. 2020 Color Volume ITP Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Rec. 2020 Color Volume ITP Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Rec. 2020 Color Volume ITP Picture

10,000 cd/m² Rec. 2020 Coverage ICtCp 
 

32.6%
33.0%

Rec. 2020 Picture Mode 
 

Asus Gaming HDR
Asus Gaming HDR
Show Text 

Viewing Angle 
 

9.8
10

Viewing Angle Video  

Chroma Graph 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Chroma Graph
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Chroma Graph

Color Washout From Left 
 

70°
70°

Color Washout From Right 
 

70°
70°

Hue Graph 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Hue Graph
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Hue Graph

Color Shift From Left 
 

51°
70°

Color Shift From Right 
 

70°
66°

Lightness Graph 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Lightness Graph
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Lightness Graph

Brightness Loss From Left 
 

70°
70°

Brightness Loss From Right 
 

70°
70°

Black Level Raise From Left 
 

70°
70°

Black Level Raise From Right 
 

70°
70°

Gamma Shift From Left 
 

70°
70°

Gamma Shift From Right 
 

70°
70°
Show Text 

Text Clarity 
 

6.5
6.5

ClearType On 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM ClearType On
Compare High-Res
ASUS ROG Swift OLED PG34WCDM ClearType On

ClearType Off 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM ClearType Off
Compare High-Res
ASUS ROG Swift OLED PG34WCDM ClearType Off

Panel Type 
 

OLED
OLED

Pixels 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Pixels
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pixels

Subpixel Layout 
 

RWBG
RWBG
Show Text 

Direct Reflections 
 

8.1

Ring Light Picture  

ASUS ROG Swift OLED PG27AQDM Ring Light Picture

Direct Reflections Graph  

 Preview Graph
ASUS ROG Swift OLED PG27AQDM Direct Reflections Graph

Peak Direct Reflection Intensity 
 

15.8%

Screen Finish 
 

Matte
Matte
Show Text 

Reflections 
 

9.2

Average Room  

ASUS ROG Swift OLED PG34WCDM Average Room

Average Room Off Picture  

ASUS ROG Swift OLED PG34WCDM Average Room Off Picture

Bright Room Off Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Bright Room Off Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

1.7%

Indirect Reflections 
 

0.9%

Calculated Direct Reflections 
 

0.7%
Show Text 

Ambient Black Level Raise 
 

8.2

Black Level Raise Picture  

ASUS ROG Swift OLED PG27AQDM Black Level Raise Picture

Ambient Black Level Raise Graph  

 Preview Graph
ASUS ROG Swift OLED PG27AQDM Ambient Black Level Raise Graph

Black Luminance @ 0 lx 
 

0.00 cd/m²

Black Luminance @ 1000 lx 
 

0.86 cd/m²
Show Text 

Total Reflected Light 
 

8.1

Bright Room Off Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Bright Room Off Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Bright Room Off Picture

Total Reflection Ring Light Picture  

ASUS ROG Swift OLED PG27AQDM Total Reflection Ring Light Picture

Total Reflected Light Intensity 
 

15,616% ⋅ pixel

Diffraction Artifacts 
 

No
Show Text 

Gradient 
 

9.6
9.8

Gradient Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Gradient Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Gradient Picture

Color Depth 
 

10 Bit
10 Bit
Show Text 
Motion

Refresh Rate 
 

8.0
8.0

Native Refresh Rate 
 

240 Hz
240 Hz

Max Refresh Rate 
 

240 Hz
240 Hz

Max Refresh Rate Over DP 
 

240 Hz
240 Hz

Max Refresh Rate Over HDMI 
 

120 Hz
240 Hz

Max Refresh Rate Over DP @ 10-bit 
 

240 Hz
240 Hz

Max Refresh Rate Over HDMI @ 10-Bit 
 

60 Hz
240 Hz

DSC Toggle 
 

No

DSC Off Max Refresh Rate Over DP 
 

N/A

DSC Off Max Refresh Rate Over HDMI 
 

N/A
Show Text 

Variable Refresh Rate (VRR) 
 

Variable Refresh Rate 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC 
 

Compatible (Tested)
Compatible (NVIDIA Certified)

VRR Maximum 
 

240 Hz
240 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Supported Connectors 
 

DisplayPort, HDMI
DisplayPort, HDMI
Show Text 

VRR Motion Performance 
 

9.9
9.9

Pursuit Photo VRR 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Pursuit Photo VRR
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pursuit Photo VRR

OD Mode CAD Comparison  

 Preview Graph
ASUS ROG Swift OLED PG27AQDM OD Mode CAD Comparison
 Preview Graph
ASUS ROG Swift OLED PG34WCDM OD Mode CAD Comparison
 Compare in Graph Tool

Recommended VRR OD Setting 
 

No OD Mode
No OD Mode

Variable Overdrive Advertised 
 

No
No

Avg. CAD 
 

7
13

Best CAD 
 

7
13

Worst CAD 
 

7
13
Show Text 

Refresh Rate Compliance 
 

9.7
9.8

Fast GTG Sequence  

 Preview Graph
ASUS ROG Swift OLED PG27AQDM Fast GTG Sequence
 Preview Graph
ASUS ROG Swift OLED PG34WCDM Fast GTG Sequence
 Compare in Graph Tool

VRR Compliance  

 Preview Graph
ASUS ROG Swift OLED PG27AQDM VRR Compliance
 Preview Graph
ASUS ROG Swift OLED PG34WCDM VRR Compliance
 Compare in Graph Tool

Compliance @ Max Hz 
 

94%
94%

Compliance @ 120 FPS 
 

96%
96%

Compliance @ 60 FPS 
 

97%
97%
Show Text 

CAD @ Max Refresh Rate 
 

9.9
9.9

Pursuit Photo At Max Refresh 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Pursuit Photo At Max Refresh
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pursuit Photo At Max Refresh

CAD Heatmap At Max Refresh 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM CAD Heatmap At Max Refresh
Compare High-Res
ASUS ROG Swift OLED PG34WCDM CAD Heatmap At Max Refresh

OD Transition Max Refresh Rate 
 

od-transition-max-refresh-rate-no-0-31
OD no
0 to 31
od-transition-max-refresh-rate-noodmode-0-31
OD noodmode
0 to 31

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Avg. CAD 
 

7
13

Best 10% CAD 
 

3
7

Worst 10% CAD 
 

12
19
Show Text 

Response Time @ Max Refresh Rate 
 

First Response Time 
 

0.2 ms
0.3 ms

Total Response Time 
 

0.2 ms
0.3 ms

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

RGB Overshoot 
 

0 RGB
0 RGB

Worst 10% RGB Overshoot 
 

0 RGB
0 RGB

Worst 10% First Response Time 
 

0.3 ms
0.3 ms

Worst 10% Total Response Time 
 

0.3 ms
0.3 ms

Heatmap First Response 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Heatmap First Response
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Heatmap First Response

Heatmap Total Response 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Heatmap Total Response
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Heatmap Total Response

Heatmap RGB Overshoot 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Heatmap RGB Overshoot
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Heatmap RGB Overshoot
Show Text 

CAD @ 120Hz 
 

9.9
9.9

Pursuit Photo 120Hz 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Pursuit Photo 120Hz
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pursuit Photo 120Hz

CAD Heatmap 120Hz 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM CAD Heatmap 120Hz
Compare High-Res
ASUS ROG Swift OLED PG34WCDM CAD Heatmap 120Hz

OD Transition 120Hz 
 

od-transition-120-no-0-31
OD no
0 to 31
od-transition-120-noodmode-0-31
OD noodmode
0 to 31

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Avg. CAD 
 

9
15

Best 10% CAD 
 

4
7

Worst 10% CAD 
 

14
21
Show Text 

Response Time @ 120Hz 
 

Worst 10% First Response Time 
 

0.4 ms
0.4 ms

RGB Overshoot 
 

0 RGB
0 RGB

Total Response Time 
 

0.2 ms
0.3 ms

First Response Time 
 

0.2 ms
0.3 ms

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Worst 10% Total Response Time 
 

0.4 ms
0.4 ms

Worst 10% RGB Overshoot 
 

0 RGB
0 RGB

120Hz First Response Heatmap 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM 120Hz First Response Heatmap
Compare High-Res
ASUS ROG Swift OLED PG34WCDM 120Hz First Response Heatmap

120Hz Total Response Heatmap 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM 120Hz Total Response Heatmap
Compare High-Res
ASUS ROG Swift OLED PG34WCDM 120Hz Total Response Heatmap

120Hz Heatmap RGB Overshoot 
 

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ASUS ROG Swift OLED PG27AQDM 120Hz Heatmap RGB Overshoot
Compare High-Res
ASUS ROG Swift OLED PG34WCDM 120Hz Heatmap RGB Overshoot
Show Text 

CAD @ 60Hz 
 

9.9
9.9

Pursuit Photo 60Hz 
 

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ASUS ROG Swift OLED PG27AQDM Pursuit Photo 60Hz
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Pursuit Photo 60Hz

CAD Heatmap 60Hz 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM CAD Heatmap 60Hz
Compare High-Res
ASUS ROG Swift OLED PG34WCDM CAD Heatmap 60Hz

OD Transition 60Hz 
 

od-transition-60-no-0-31
OD no
0 to 31
od-transition-60-noodmode-0-31
OD noodmode
0 to 31

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Avg. CAD 
 

16
20

Best 10% CAD 
 

7
10

Worst 10% CAD 
 

23
29
Show Text 

Response Time @ 60Hz 
 

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

First Response Time 
 

0.3 ms
0.4 ms

Total Response Time 
 

0.3 ms
0.4 ms

RGB Overshoot 
 

0 RGB
0 RGB

Worst 10% Total Response Time 
 

0.6 ms
0.5 ms

Worst 10% First Response Time 
 

0.6 ms
0.5 ms

Worst 10% RGB Overshoot 
 

0 RGB
0 RGB

60Hz First Response Heatmap 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM 60Hz First Response Heatmap
Compare High-Res
ASUS ROG Swift OLED PG34WCDM 60Hz First Response Heatmap

60Hz Total Response Heatmap 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM 60Hz Total Response Heatmap
Compare High-Res
ASUS ROG Swift OLED PG34WCDM 60Hz Total Response Heatmap

60Hz RGB Overshoot Heatmap 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM 60Hz RGB Overshoot Heatmap
Compare High-Res
ASUS ROG Swift OLED PG34WCDM 60Hz RGB Overshoot Heatmap
Show Text 

Backlight Strobing (BFI) 
 

Backlight Strobing Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Backlight Strobing Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Backlight Strobing Picture

Backlight Strobing Frequency Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Backlight Strobing Frequency Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Backlight Strobing Frequency Picture

Backlight Strobing (BFI) 
 

No BFI
Yes

Maximum Frequency 
 

N/A
120 Hz

Minimum Frequency 
 

N/A
120 Hz

Longest Pulse Width Brightness 
 

N/A
115 cd/m²

Shortest Pulse Width Brightness 
 

N/A
115 cd/m²

Pulse Width Control 
 

No BFI
No

Pulse Phase Control 
 

No BFI
No

Pulse Amplitude Control 
 

No BFI
Yes

VRR At The Same Time 
 

No BFI
No
Show Text 

VRR Flicker 
 

5.3
7.3

VRR Flicker Video  

VRR Flicker Graph 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM VRR Flicker Graph
Compare High-Res
ASUS ROG Swift OLED PG34WCDM VRR Flicker Graph

Dark Gray Flicker 
 

6.1 RGB
2.2 RGB

Middle Gray Flicker 
 

1.7 RGB
1.1 RGB

Light Gray Flicker 
 

0.8 RGB
1.1 RGB
Show Text 

Image Flicker 
 

10
10

Backlight Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Backlight Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Backlight Picture

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

0 Hz
0 Hz
Show Text 
Inputs

Input Lag 
 

9.1
9.0

Native Resolution @ Max Hz 
 

2.5 ms
2.7 ms

Native Resolution @ 120Hz 
 

4.4 ms
5.0 ms

Native Resolution @ 60Hz 
 

8.8 ms
9.5 ms

Backlight Strobing (BFI) 
 

N/A
10.4 ms
Show Text 

Resolution 
 

7.5
7.7

Native Resolution 
 

2560 x 1440
3440 x 1440

Aspect Ratio 
 

16:9
21:9

Megapixels 
 

3.7 MP
5.0 MP

Pixel Density 
 

109 PPI
110 PPI
Show Text 

PS5 Compatibility 
 

7.1
4.9

PS5 Compatibility Photo 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM PS5 Compatibility Photo
Compare High-Res
ASUS ROG Swift OLED PG34WCDM PS5 Compatibility Photo

PS5 Compatibility Table 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM PS5 Compatibility Table
Compare High-Res
ASUS ROG Swift OLED PG34WCDM PS5 Compatibility Table

4k @ 120Hz 
 

No
No

4k @ 60Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
Yes

1440p @ 60Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 60Hz 
 

Yes
Yes
Show Text 

Xbox Series X|S Compatibility 
 

7.1
3.9

XSX Compatibility Photo 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM XSX Compatibility Photo
Compare High-Res
ASUS ROG Swift OLED PG34WCDM XSX Compatibility Photo

XSX Compatibility Table 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM XSX Compatibility Table
Compare High-Res
ASUS ROG Swift OLED PG34WCDM XSX Compatibility Table

4k @ 120Hz 
 

No
No

4k @ 60Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
No

1440p @ 60Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 60Hz 
 

Yes
Yes
Show Text 

Inputs Photos  

Inputs 1 
 

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ASUS ROG Swift OLED PG27AQDM Inputs 1
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Inputs 1

Inputs 2 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Inputs 2
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Inputs 2

Inputs 
 

Inputs 1 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Inputs 1
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Inputs 1

Inputs 2 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM Inputs 2
Compare High-Res
ASUS ROG Swift OLED PG34WCDM Inputs 2

DisplayPort 
 

1 (DP 1.4)
1 (DP 1.4)

DisplayPort Transmission Bandwidth 
 

No DisplayPort 2.1
No DisplayPort 2.1

Mini DisplayPort 
 

No
No

DVI 
 

No

HDMI 
 

2 (HDMI 2.0)
2 (HDMI 2.1)

VGA 
 

No

HDMI 2.1 Bandwidth 
 

No HDMI 2.1
48Gbps (FRL 12x4)

Daisy Chaining 
 

No
No

3.5mm Audio Out 
 

Yes
1

3.5mm Audio In 
 

No

3.5mm Microphone In 
 

No

Ethernet 
 

No

HDR10 
 

Yes
Yes

Dolby Vision 
 

No
Show Text 

USB 
 

USB-A Ports 
 

2
2

USB-A Rated Speed 
 

5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)

USB-B Upstream Port 
 

Yes
Yes

USB-C Ports 
 

0
1

USB-C Upstream 
 

No USB-C Ports
Yes

USB-C Rated Speed 
 

No USB-C Ports
5Gbps (USB 3.2 Gen 1)

USB-C Power Delivery 
 

No USB-C Ports
90W

USB-C DisplayPort Alt Mode 
 

No USB-C Ports
Yes

Thunderbolt 
 

No
No
Show Text 

macOS Compatibility 
 

macOS Screenshot 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM macOS Screenshot
Compare High-Res
ASUS ROG Swift OLED PG34WCDM macOS Screenshot
Show Text 
Features

Additional Features 
 

Speakers 
 

No
No

HDR10 
 

Yes
Yes

RGB Illumination 
 

Controllable
Controllable

Multiple Input Display 
 

No
PIP + PBP

KVM Switch 
 

No
Yes

Smart OS 
 

No
Show Text 

On-Screen Display (OSD) 
 

OSD Picture 
 

Compare High-Res
ASUS ROG Swift OLED PG27AQDM OSD Picture
Compare High-Res
ASUS ROG Swift OLED PG34WCDM OSD Picture
Show Text 

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ASUS ROG Swift OLED PG27AQDM

ASUS ROG Swift OLED PG34WCDM

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  1. Comparison
 • Posted 1 year ago

ASUS ROG Swift OLED PG27AQDM vs ASUS ROG Swift OLED PG34WCDM: Main Discussion

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