Products
Samsung Odyssey OLED G85SB S34BG85
ASUS ROG Swift OLED PG34WCDM
Tested using Methodology v2.0.1
Updated Jan 20, 2026 06:40 PM
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Amazon.com
Tested using Methodology v2.0.1
Updated Aug 12, 2025 07:13 PM
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Max Refresh Rate
175 Hz
Size
34"
Pixel Type
QD-OLED
Native Resolution
3440 x 1440
Max Refresh Rate
240 Hz
Size
34"
Pixel Type
OLED
Native Resolution
3440 x 1440
Our Verdict
Samsung Odyssey OLED G85SB S34BG85
ASUS ROG Swift OLED PG34WCDM
Both the ASUS ROG Swift OLED PG34WCDM and the Samsung Odyssey OLED G85SB S34BG85 are 34-inch ultrawide OLED gaming monitors. Both monitors are superb for gaming and have incredible HDR performance. If you're looking for a smooth gaming experience, then the ASUS's high refresh rate makes it a better choice. It's also better if you want to reduce persistence blur in games, as it has a BFI feature. However, the Samsung is a better choice if rich colors are important to you, as it has more vivid HDR colors.
Variants
- LS34BG850SNXZA (34")
- ROG Swift OLED PG34WCDM (34")
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34"
LS34BG850SNXZA
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34"
ROG Swift OLED PG34WCDM
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Amazon.com
34"
LS34BG850SNXZA
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Samsung.com
34"
ROG Swift OLED PG34WCDM
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B&H
34"
LS34BG850SNXZA
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34"
ROG Swift OLED PG34WCDM
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34"
LS34BG850SNXZA
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34"
ROG Swift OLED PG34WCDM
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34"
LS34BG850SNXZA
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ROG Swift OLED PG34WCDM
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ASUS
Main Differences for
PC Gaming
PC Gaming
Threshold
PC Gaming
8.9
9.0
Full Comparison
Design
Style
Design Picture
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Curved
Yes
Yes
Curve Radius
1800R
800R
Accelerated Longevity Test
Uniformity Pictures
Month 30
50% Gray
Longevity Graph
Preview Graph
Build Quality
8.5
8.5
Build Quality Picture
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Ergonomics
6.7
7.2
Ergonomics Picture
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Back Picture
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Height Adjustment
4.7" (12.0 cm)
4.3" (11.0 cm)
Min Height To Top Of Panel
15.5" (39.3 cm)
16.8" (42.7 cm)
Tilt Range
-20° to 2.5°
-20° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
No swivel
-15° to 15°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
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Thickness Picture
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Base Width
7.2" (18.2 cm)
24.3" (61.6 cm)
Base Depth
7.6" (19.3 cm)
11.5" (29.2 cm)
Thickness (With Display)
5.3" (13.5 cm)
12.3" (31.2 cm)
Weight (With Display)
16.7 lbs (7.6 kg)
18.4 lbs (8.3 kg)
Display
Display Picture
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Size
34"
34"
Housing Width
32.1" (81.5 cm)
31.2" (79.2 cm)
Housing Height
14.1" (35.7 cm)
15.0" (38.0 cm)
Thickness (Without Stand)
2.2" (5.5 cm)
6.8" (17.2 cm)
Weight (Without Stand)
12.2 lbs (5.5 kg)
12.5 lbs (5.7 kg)
Borders Size (Bezels)
0.4" (1.1 cm)
0.4" (1.0 cm)
Controls
Controls Picture
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In The Box
In The Box Picture
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Power Supply
External Brick
External Brick
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
6.6
7.4
Real Scene
230 cd/m²
273 cd/m²
Peak 2% Window
249 cd/m²
380 cd/m²
Peak 10% Window
242 cd/m²
381 cd/m²
Peak 25% Window
243 cd/m²
388 cd/m²
Peak 50% Window
242 cd/m²
289 cd/m²
Peak 100% Window
243 cd/m²
239 cd/m²
Sustained 2% Window
247 cd/m²
376 cd/m²
Sustained 10% Window
240 cd/m²
377 cd/m²
Sustained 25% Window
241 cd/m²
384 cd/m²
Sustained 50% Window
240 cd/m²
287 cd/m²
Sustained 100% Window
241 cd/m²
238 cd/m²
Automatic Brightness Limiting (ABL)
0.002
0.033
Minimum Brightness
61 cd/m²
20 cd/m²
HDR Brightness
6.6
7.0
EOTF
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VESA DisplayHDR Certification
DisplayHDR TRUE BLACK 400
DisplayHDR TRUE BLACK 400
Real Scene
372 cd/m²
443 cd/m²
Peak 2% Window
985 cd/m²
1,108 cd/m²
Peak 10% Window
456 cd/m²
716 cd/m²
Peak 25% Window
360 cd/m²
407 cd/m²
Peak 50% Window
302 cd/m²
298 cd/m²
Peak 100% Window
255 cd/m²
246 cd/m²
Sustained 2% Window
977 cd/m²
1,080 cd/m²
Sustained 10% Window
454 cd/m²
707 cd/m²
Sustained 25% Window
357 cd/m²
403 cd/m²
Sustained 50% Window
300 cd/m²
298 cd/m²
Sustained 100% Window
252 cd/m²
246 cd/m²
Automatic Brightness Limiting (ABL)
0.078
0.088
Horizontal Viewing Angle
10
10
Horizontal Viewing Angle Video
Horizontal Chroma Graph
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Color Washout From Left
70°
70°
Color Washout From Right
70°
70°
Horizontal Hue Graph
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Color Shift From Left
70°
70°
Color Shift From Right
70°
66°
Horizontal 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°
Vertical Viewing Angle
9.9
10
Vertical Viewing Angle Video
Vertical Chroma Graph
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Color Washout From Below
70°
70°
Color Washout From Above
70°
70°
Vertical Hue Graph
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Color Shift From Below
70°
70°
Color Shift From Above
70°
70°
Vertical Lightness Graph
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Brightness Loss From Below
70°
70°
Brightness Loss From Above
70°
70°
Black Level Raise From Below
61°
70°
Black Level Raise From Above
61°
70°
Gamma Shift From Below
70°
70°
Gamma Shift From Above
70°
70°
Gray Uniformity
8.8
8.3
50% Uniformity Picture
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50% Std. Dev.
0.784%
2.669%
50% DSE
0.125%
0.132%
Black Uniformity
10
10
Native Black Uniformity Picture
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Native Std. Dev.
0.433%
0.165%
Black Uniformity Picture With Local Dimming
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Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
8.0
8.5
Pre Calibration Picture
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Pre Gamma Curve Picture
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Pre Color Picture
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Picture Mode
Game (Custom)
sRGB Cal Mode
sRGB Gamut Area xy
101.7%
104.8%
White Balance dE (Avg.)
4.86
2.41
Color Temperature (Avg.)
6,759 K
6,275 K
Gamma (Avg.)
2.16
2.29
Color dE (Avg.)
3.04
1.92
Contrast Setting
50
80
RGB Settings
Gain (0,0,0), Offset (0,0,0)
Default
Gamma Setting
2.2
Default
Brightness Setting
32
26
Measured Brightness
183 cd/m²
131 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
8.5
9.1
Post Calibration Picture
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Post Gamma Curve Picture
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Post Color Picture
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Picture Mode
Game (Custom)
Racing Mode
sRGB Gamut Area xy
108.9%
103.3%
White Balance dE (Avg.)
0.72
0.66
Color Temperature (Avg.)
6,470 K
6,512 K
Gamma (Avg.)
2.20
2.20
Color dE (Avg.)
1.42
1.87
Contrast Setting
50
80
RGB Settings
Gain (6,-7,1), Offset (2,2,1)
98-99-100
Gamma Setting
2.2
2.2
Brightness Setting
3
18
Measured Brightness
101 cd/m²
99 cd/m²
SDR Color Gamut
9.7
9.6
sRGB Color Gamut Picture
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sRGB Coverage xy
99.3%
100.0%
sRGB Picture Mode
Game (Custom)
Racing Mode
Adobe RGB Color Gamut Picture
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Adobe RGB Coverage xy
94.1%
89.6%
Adobe RGB Picture Mode
Game (Custom)
Racing Mode
HDR Color Gamut
9.6
9.0
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
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DCI-P3 Coverage xy
99.6%
96.6%
DCI-P3 Picture Mode
Game (Custom)
Asus Gaming HDR
Rec. 2020 Color Gamut Picture
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Rec. 2020 Coverage xy
79.9%
70.1%
Rec. 2020 Picture Mode
Game (Custom)
Asus Gaming HDR
HDR Color Volume
8.9
7.8
DCI-P3 Color Volume ITP Picture
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1,000 cd/m² DCI-P3 Coverage ICtCp
97.1%
77.0%
DCI-P3 Picture Mode
Game (Custom)
Asus Gaming HDR
Rec. 2020 Color Volume ITP Picture
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10,000 cd/m² Rec. 2020 Coverage ICtCp
47.2%
33.0%
Rec. 2020 Picture Mode
Game (Custom)
Asus Gaming HDR
Text Clarity
7.0
6.5
ClearType On
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ClearType Off
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Pixel Type
QD-OLED
OLED
Pixels
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Subpixel Layout
Triangular RGB
RWBG
Reflections
9.4
9.2
Average Room
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Average Room Off Picture
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Bright Room Off Picture
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Screen Finish
Glossy
Matte
Total Reflections
1.4%
1.7%
Indirect Reflections
0.9%
0.9%
Calculated Direct Reflections
0.5%
0.7%
Gradient
9.7
9.8
Gradient Picture
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Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
7.6
8.0
Native Refresh Rate
175 Hz
240 Hz
Max Refresh Rate
175 Hz
240 Hz
Max Refresh Rate Over DP
175 Hz
240 Hz
Max Refresh Rate Over HDMI
175 Hz
240 Hz
Max Refresh Rate Over DP @ 10-bit
175 Hz
240 Hz
Max Refresh Rate Over HDMI @ 10-Bit
175 Hz
240 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (NVIDIA Certified)
VRR Maximum
175 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
Preview Graph
Preview Graph
Recommended VRR OD Setting
No OD Mode
No OD Mode
Variable Overdrive Advertised
No
No
Avg. CAD
8
13
Best CAD
8
13
Worst CAD
8
13
Refresh Rate Compliance
9.6
9.8
Fast GTG Sequence
Preview Graph
Preview Graph
VRR Compliance
Preview Graph
Preview Graph
Compliance @ Max Hz
94%
94%
Compliance @ 120 FPS
95%
96%
Compliance @ 60 FPS
95%
97%
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 no
0 to 31
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
8
13
Best 10% CAD
4
7
Worst 10% CAD
15
19
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
1.2 ms
0.3 ms
Worst 10% Total Response Time
1.2 ms
0.3 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 no
0 to 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
16
21
Response Time @ 120Hz
Worst 10% First Response Time
1.3 ms
0.4 ms
RGB Overshoot
0 RGB
0 RGB
Total Response Time
0.3 ms
0.3 ms
First Response Time
0.3 ms
0.3 ms
Recommended Overdrive Setting
No OD Mode
No OD Mode
Worst 10% Total Response Time
1.3 ms
0.4 ms
Worst 10% RGB Overshoot
0 RGB
0 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 no
0 to 31
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
14
20
Best 10% CAD
6
10
Worst 10% CAD
23
29
Response Time @ 60Hz
Recommended Overdrive Setting
No OD Mode
No OD Mode
First Response Time
0.5 ms
0.4 ms
Total Response Time
0.5 ms
0.4 ms
RGB Overshoot
0 RGB
0 RGB
Worst 10% Total Response Time
2.5 ms
0.5 ms
Worst 10% First Response Time
2.5 ms
0.5 ms
Worst 10% RGB Overshoot
N/A
0 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
Yes
Maximum Frequency
60 Hz
120 Hz
Minimum Frequency
60 Hz
120 Hz
Longest Pulse Width Brightness
137 cd/m²
115 cd/m²
Shortest Pulse Width Brightness
137 cd/m²
115 cd/m²
Pulse Width Control
No
No
Pulse Phase Control
No
No
Pulse Amplitude Control
Yes
Yes
VRR At The Same Time
No
No
VRR Flicker
5.9
7.3
VRR Flicker Video
VRR Flicker Graph
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Dark Gray Flicker
4.4 RGB
2.2 RGB
Middle Gray Flicker
1.0 RGB
1.1 RGB
Light Gray Flicker
0.8 RGB
1.1 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
8.4
9.0
Native Resolution @ Max Hz
3.5 ms
2.7 ms
Native Resolution @ 120Hz
5.0 ms
5.0 ms
Native Resolution @ 60Hz
9.6 ms
9.5 ms
Backlight Strobing (BFI)
55.0 ms
10.4 ms
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
110 PPI
PS5 Compatibility
7.1
4.9
PS5 Compatibility Photo
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PS5 Compatibility Table
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4k @ 120Hz
No
No
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
6.6
3.9
XSX Compatibility Photo
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XSX Compatibility Table
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4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
No
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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Video And Audio Ports
DisplayPort
No
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
1 (DP 1.4)
No
HDMI
1 (Micro-HDMI)
2 (HDMI 2.1)
HDMI 2.1 Bandwidth
40Gbps (FRL 10x4)
48Gbps (FRL 12x4)
DVI
No
No
VGA
No
No
Daisy Chaining
No
No
3.5mm Audio Out
No
1
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
0
2
USB-A Rated Speed
No USB-A Ports
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
No
Yes
USB-C Ports
2
1
USB-C Upstream
Yes
Yes
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
65W
90W
USB-C DisplayPort Alt Mode
Yes
Yes
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
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Features
Additional Features
HDR10
Yes
Yes
Speakers
Yes
No
RGB Illumination
Controllable
Controllable
Multiple Input Display
No
PIP + PBP
KVM Switch
No
Yes
On-Screen Display (OSD)
OSD Picture
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Check Price
34"
LS34BG850SNXZA
SEE PRICE
Amazon.com
34"
ROG Swift OLED PG34WCDM
SEE PRICE
Amazon.com
34"
LS34BG850SNXZA
SEE PRICE
Samsung.com
34"
ROG Swift OLED PG34WCDM
SEE PRICE
B&H
34"
LS34BG850SNXZA
SEE PRICE
Walmart.com
34"
ROG Swift OLED PG34WCDM
SEE PRICE
Walmart.com
34"
LS34BG850SNXZA
SEARCH
B&H
34"
ROG Swift OLED PG34WCDM
SEARCH
BestBuy.com
34"
LS34BG850SNXZA
SEARCH
BestBuy.com
34"
ROG Swift OLED PG34WCDM
SEARCH
ASUS
Samsung Odyssey OLED G85SB S34BG85
ASUS ROG Swift OLED PG34WCDM
Comments
Samsung Odyssey OLED G85SB S34BG85 vs ASUS ROG Swift OLED PG34WCDM: Main Discussion
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