Products
ASUS ROG Swift OLED PG34WCDM
Dell Alienware AW3425DW
Tested using Methodology v2.0.1
Updated Aug 12, 2025 07:13 PM
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Amazon.com
Tested using Methodology v2.1.1
Updated Nov 07, 2025 02:03 PM
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Max Refresh Rate
240 Hz
Size
34"
Panel Type
OLED
Native Resolution
3440 x 1440
Max Refresh Rate
240 Hz
Size
34"
Panel Type
QD-OLED
Native Resolution
3440 x 1440
Our Verdict
ASUS ROG Swift OLED PG34WCDM
Dell Alienware AW3425DW
The ASUS ROG Swift OLED PG34WCDM and the Dell Alienware AW3425DW are both 240Hz ultrawide gaming monitors. They both have OLED panels, but they're different types of OLED. The Dell has a QD-OLED panel with more vivid colors, with the main downside being that blacks look purple in bright rooms. The WOLED panel of the ASUS doesn't have that issue, but it has other downsides, like the fact that text doesn't look as sharp. The ASUS does have extra features, though, as it has a USB-C port with DisplayPort Alt Mode and a KVM switch, making it the better choice for productivity.
Variants
- ROG Swift OLED PG34WCDM (34")
- Alienware AW3425DW (34")
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34"
ROG Swift OLED PG34WCDM
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34"
Alienware AW3425DW
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34"
ROG Swift OLED PG34WCDM
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Walmart.com
34"
Alienware AW3425DW
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34"
ROG Swift OLED PG34WCDM
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34"
Alienware AW3425DW
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34"
ROG Swift OLED PG34WCDM
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34"
Alienware AW3425DW
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B&H
34"
ROG Swift OLED PG34WCDM
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ASUS
34"
Alienware AW3425DW
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Dell
Main Differences for
PC Gaming
PC Gaming
Threshold
PC Gaming
9.0
9.1
Full Comparison
Design
Style
Design Picture
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Curved
Yes
Yes
Curve Radius
800R
1800R
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.5
8.5
Build Quality Picture
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Ergonomics
7.2
7.2
Ergonomics Picture
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Back Picture
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Height Adjustment
4.3" (11.0 cm)
4.2" (10.7 cm)
Min Height To Top Of Panel
16.8" (42.7 cm)
17.3" (43.9 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
-15° to 15°
-20° to 20°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
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Thickness Picture
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Base Width
24.3" (61.6 cm)
10.6" (27.0 cm)
Base Depth
11.5" (29.2 cm)
9.2" (23.3 cm)
Thickness (With Display)
12.3" (31.2 cm)
6.7" (17.0 cm)
Weight (With Display)
18.4 lbs (8.3 kg)
16.6 lbs (7.5 kg)
Display
Display Picture
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Size
34"
34"
Housing Width
31.2" (79.2 cm)
32.0" (81.2 cm)
Housing Height
15.0" (38.0 cm)
13.9" (35.2 cm)
Thickness (Without Stand)
6.8" (17.2 cm)
2.6" (6.6 cm)
Weight (Without Stand)
12.5 lbs (5.7 kg)
11.5 lbs (5.2 kg)
Borders Size (Bezels)
0.4" (1.0 cm)
0.5" (1.2 cm)
Controls
Controls Picture
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In The Box
In The Box Picture
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Power Supply
External Brick
Internal
Picture Quality
Contrast
10
10
Checkerboard Picture
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Native Contrast
Inf : 1
Inf : 1
Contrast With Local Dimming
Inf : 1
Inf : 1
Local Dimming
10
10
Local Dimming Video
Local Dimming
No
No
Backlight
No Backlight
No Backlight
SDR Brightness
7.4
6.7
Real Scene
273 cd/m²
235 cd/m²
Peak 2% Window
380 cd/m²
238 cd/m²
Peak 10% Window
381 cd/m²
239 cd/m²
Peak 25% Window
388 cd/m²
239 cd/m²
Peak 50% Window
289 cd/m²
239 cd/m²
Peak 100% Window
239 cd/m²
238 cd/m²
Sustained 2% Window
376 cd/m²
237 cd/m²
Sustained 10% Window
377 cd/m²
238 cd/m²
Sustained 25% Window
384 cd/m²
238 cd/m²
Sustained 50% Window
287 cd/m²
238 cd/m²
Sustained 100% Window
238 cd/m²
237 cd/m²
Automatic Brightness Limiting (ABL)
0.033
0.000
Minimum Brightness
20 cd/m²
19 cd/m²
HDR Brightness
7.0
6.9
EOTF
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VESA DisplayHDR Certification
DisplayHDR TRUE BLACK 400
DisplayHDR TRUE BLACK 400
Real Scene
443 cd/m²
452 cd/m²
Peak 2% Window
1,108 cd/m²
1,003 cd/m²
Peak 10% Window
716 cd/m²
457 cd/m²
Peak 25% Window
407 cd/m²
367 cd/m²
Peak 50% Window
298 cd/m²
312 cd/m²
Peak 100% Window
246 cd/m²
264 cd/m²
Sustained 2% Window
1,080 cd/m²
999 cd/m²
Sustained 10% Window
707 cd/m²
453 cd/m²
Sustained 25% Window
403 cd/m²
364 cd/m²
Sustained 50% Window
298 cd/m²
309 cd/m²
Sustained 100% Window
246 cd/m²
262 cd/m²
Automatic Brightness Limiting (ABL)
0.088
0.077
Gray Uniformity
8.3
9.1
50% Uniformity Picture
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50% Std. Dev.
2.669%
0.634%
50% DSE
0.132%
0.113%
Black Uniformity
10
10
Native Black Uniformity Picture
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Native Std. Dev.
0.165%
0.373%
Black Uniformity Picture With Local Dimming
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Std. Dev. w/ L.D.
N/A
N/A
Vertical Viewing Angle
10
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
70°
Color Washout From Above
70°
Vertical Hue Graph
Color Shift From Below
70°
Color Shift From Above
70°
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°
Color Accuracy (Pre-Calibration)
8.5
9.3
Pre Calibration Picture
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Pre Gamma Curve Picture
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Pre Color Picture
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Picture Mode
sRGB Cal Mode
Creator (sRGB)
sRGB Gamut Area xy
104.8%
100.4%
White Balance dE (Avg.)
2.41
1.58
Color Temperature (Avg.)
6,275 K
6,429 K
Gamma (Avg.)
2.29
2.18
Color dE (Avg.)
1.92
0.92
Contrast Setting
80
75
RGB Settings
Default
Default
Gamma Setting
Default
2.2
Brightness Setting
26
75
Measured Brightness
131 cd/m²
171 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.1
9.7
Post Calibration Picture
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Post Gamma Curve Picture
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Post Color Picture
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Picture Mode
Racing Mode
Custom Color
sRGB Gamut Area xy
103.3%
101.2%
White Balance dE (Avg.)
0.66
0.57
Color Temperature (Avg.)
6,512 K
6,513 K
Gamma (Avg.)
2.20
2.21
Color dE (Avg.)
1.87
0.35
Contrast Setting
80
75
RGB Settings
98-99-100
Gain (95-97-99), Offset (50-50-50)
Gamma Setting
2.2
No Gamma Setting
Brightness Setting
18
42
Measured Brightness
99 cd/m²
101 cd/m²
SDR Color Gamut
9.6
9.8
sRGB Color Gamut Picture
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sRGB Coverage xy
100.0%
100.0%
sRGB Picture Mode
Racing Mode
Custom Color
Adobe RGB Color Gamut Picture
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Adobe RGB Coverage xy
89.6%
95.0%
Adobe RGB Picture Mode
Racing Mode
Custom Color
HDR Color Gamut
9.0
9.6
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
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DCI-P3 Coverage xy
96.6%
99.5%
DCI-P3 Picture Mode
Asus Gaming HDR
HDR Peak 1000
Rec. 2020 Color Gamut Picture
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Rec. 2020 Coverage xy
70.1%
80.7%
Rec. 2020 Picture Mode
Asus Gaming HDR
HDR Peak 1000
HDR Color Volume
7.8
9.0
DCI-P3 Color Volume ITP Picture
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1,000 cd/m² DCI-P3 Coverage ICtCp
77.0%
89.2%
DCI-P3 Picture Mode
Asus Gaming HDR
HDR Peak 1000
Rec. 2020 Color Volume ITP Picture
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10,000 cd/m² Rec. 2020 Coverage ICtCp
33.0%
48.7%
Rec. 2020 Picture Mode
Asus Gaming HDR
HDR Peak 1000
Viewing Angle
10
10
Viewing Angle Video
Chroma Graph
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Color Washout From Left
70°
70°
Color Washout From Right
70°
70°
Hue Graph
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Color Shift From Left
70°
70°
Color Shift From Right
66°
70°
Lightness Graph
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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°
Text Clarity
6.5
7.0
ClearType On
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ClearType Off
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Panel Type
OLED
QD-OLED
Pixels
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Subpixel Layout
RWBG
Triangular RGB
Direct Reflections
7.0
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
25.4%
Screen Finish
Matte
Glossy
Reflections
9.2
Average Room
Average Room Off Picture
Bright Room Off Picture
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Screen Finish
Matte
Glossy
Total Reflections
1.7%
Indirect Reflections
0.9%
Calculated Direct Reflections
0.7%
Ambient Black Level Raise
4.2
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.00 cd/m²
Black Luminance @ 1000 lx
3.46 cd/m²
Total Reflected Light
8.8
Bright Room Off Picture
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Total Reflection Ring Light Picture
Total Reflected Light Intensity
8,021% ⋅ pixel
Diffraction Artifacts
No
Gradient
9.8
9.8
Gradient Picture
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Color Depth
10 Bit
10 Bit
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
240 Hz
240 Hz
Max Refresh Rate Over DP @ 10-bit
240 Hz
240 Hz
Max Refresh Rate Over HDMI @ 10-Bit
240 Hz
240 Hz
DSC Toggle
Yes
DSC Off Max Refresh Rate Over DP
165 Hz
DSC Off Max Refresh Rate Over HDMI
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)
VRR Maximum
240 Hz
240 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
9.9
9.9
Pursuit Photo VRR
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OD Mode CAD Comparison
Recommended VRR OD Setting
No OD Mode
No OD Mode
Variable Overdrive Advertised
No
No
Avg. CAD
13
13
Best CAD
13
12
Worst CAD
13
15
Refresh Rate Compliance
9.8
9.6
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
94%
91%
Compliance @ 120 FPS
96%
94%
Compliance @ 60 FPS
97%
95%
CAD @ Max Refresh Rate
9.9
9.9
Pursuit Photo At Max Refresh
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CAD Heatmap At Max Refresh
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OD Transition Max Refresh Rate
OD noodmode
0 to 31
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
13
13
Best 10% CAD
7
7
Worst 10% CAD
19
28
Response Time @ Max Refresh Rate
First Response Time
0.3 ms
0.2 ms
Total Response Time
0.3 ms
1.2 ms
Recommended Overdrive Setting
No OD Mode
No OD Mode
RGB Overshoot
0 RGB
3 RGB
Worst 10% RGB Overshoot
0 RGB
22 RGB
Worst 10% First Response Time
0.3 ms
0.6 ms
Worst 10% Total Response Time
0.3 ms
5.4 ms
Heatmap First Response
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Heatmap Total Response
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Heatmap RGB Overshoot
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CAD @ 120Hz
9.9
9.9
Pursuit Photo 120Hz
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CAD Heatmap 120Hz
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OD Transition 120Hz
OD noodmode
0 to 31
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
15
13
Best 10% CAD
7
6
Worst 10% CAD
21
33
Response Time @ 120Hz
Worst 10% First Response Time
0.4 ms
0.6 ms
RGB Overshoot
0 RGB
1 RGB
Total Response Time
0.3 ms
1.1 ms
First Response Time
0.3 ms
0.2 ms
Recommended Overdrive Setting
No OD Mode
No OD Mode
Worst 10% Total Response Time
0.4 ms
8.4 ms
Worst 10% RGB Overshoot
0 RGB
8 RGB
120Hz First Response Heatmap
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120Hz Total Response Heatmap
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120Hz Heatmap RGB Overshoot
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CAD @ 60Hz
9.9
9.9
Pursuit Photo 60Hz
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CAD Heatmap 60Hz
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OD Transition 60Hz
OD noodmode
0 to 31
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
20
15
Best 10% CAD
10
6
Worst 10% CAD
29
55
Response Time @ 60Hz
Recommended Overdrive Setting
No OD Mode
No OD Mode
First Response Time
0.4 ms
0.3 ms
Total Response Time
0.4 ms
1.9 ms
RGB Overshoot
0 RGB
1 RGB
Worst 10% Total Response Time
0.5 ms
16.8 ms
Worst 10% First Response Time
0.5 ms
0.8 ms
Worst 10% RGB Overshoot
0 RGB
8 RGB
60Hz First Response Heatmap
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60Hz Total Response Heatmap
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60Hz RGB Overshoot Heatmap
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Backlight Strobing (BFI)
Backlight Strobing Picture
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Backlight Strobing Frequency Picture
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Backlight Strobing (BFI)
Yes
No BFI
Maximum Frequency
120 Hz
N/A
Minimum Frequency
120 Hz
N/A
Longest Pulse Width Brightness
115 cd/m²
N/A
Shortest Pulse Width Brightness
115 cd/m²
N/A
Pulse Width Control
No
No BFI
Pulse Phase Control
No
No BFI
Pulse Amplitude Control
Yes
No BFI
VRR At The Same Time
No
No BFI
VRR Flicker
7.3
5.5
VRR Flicker Video
VRR Flicker Graph
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Dark Gray Flicker
2.2 RGB
5.9 RGB
Middle Gray Flicker
1.1 RGB
1.1 RGB
Light Gray Flicker
1.1 RGB
0.7 RGB
Image Flicker
10
10
Backlight Picture
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Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
9.0
8.9
Native Resolution @ Max Hz
2.7 ms
2.9 ms
Native Resolution @ 120Hz
5.0 ms
7.0 ms
Native Resolution @ 60Hz
9.5 ms
15.5 ms
Backlight Strobing (BFI)
10.4 ms
N/A
Resolution
7.7
7.7
Native Resolution
3440 x 1440
3440 x 1440
Aspect Ratio
21:9
21:9
Megapixels
5.0 MP
5.0 MP
Pixel Density
110 PPI
109 PPI
PS5 Compatibility
4.9
9.3
PS5 Compatibility Photo
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PS5 Compatibility Table
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4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Xbox Series X|S Compatibility
3.9
9.3
XSX Compatibility Photo
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XSX Compatibility Table
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4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
No
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Inputs Photos
Inputs 1
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Inputs 2
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Inputs
Inputs 1
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Inputs 2
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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 2.1)
2 (HDMI 2.1)
VGA
No
HDMI 2.1 Bandwidth
48Gbps (FRL 12x4)
48Gbps (FRL 12x4)
Daisy Chaining
No
No
3.5mm Audio Out
1
No
3.5mm Audio In
No
3.5mm Microphone In
No
Ethernet
No
HDR10
Yes
Yes
Dolby Vision
No
USB
USB-A Ports
2
1
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
1
1
USB-C Upstream
Yes
No
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
90W
15W
USB-C DisplayPort Alt Mode
Yes
No
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
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Features
Additional Features
Speakers
No
No
HDR10
Yes
Yes
RGB Illumination
Controllable
Controllable
Multiple Input Display
PIP + PBP
PIP + PBP
KVM Switch
Yes
No
Smart OS
No
On-Screen Display (OSD)
OSD Picture
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Check Price
34"
ROG Swift OLED PG34WCDM
SEE PRICE
Amazon.com
34"
Alienware AW3425DW
SEE PRICE
Amazon.com
34"
ROG Swift OLED PG34WCDM
SEE PRICE
Walmart.com
34"
Alienware AW3425DW
SEE PRICE
BestBuy.com
34"
ROG Swift OLED PG34WCDM
SEARCH
B&H
34"
Alienware AW3425DW
SEE PRICE
Walmart.com
34"
ROG Swift OLED PG34WCDM
SEARCH
BestBuy.com
34"
Alienware AW3425DW
SEARCH
B&H
34"
ROG Swift OLED PG34WCDM
SEARCH
ASUS
34"
Alienware AW3425DW
SEARCH
Dell
ASUS ROG Swift OLED PG34WCDM
Dell Alienware AW3425DW
Comments
ASUS ROG Swift OLED PG34WCDM vs Dell Alienware AW3425DW: Main Discussion
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