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Products
Samsung Odyssey OLED G85SB S34BG85
Corsair XENEON 27QHD240
Tested using Methodology v2.0.1
Updated Nov 17, 2025 08:07 PM
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Amazon.comTested using Methodology v2.0.1
Updated Jun 13, 2025 09:02 PM
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Amazon.com
Max Refresh Rate175 Hz
Size34"
Pixel TypeQD-OLED
Native Resolution3440 x 1440
Max Refresh Rate240 Hz
Size27"
Pixel TypeOLED
Native Resolution2560 x 1440
Our Verdict
Samsung Odyssey OLED G85SB S34BG85
Corsair XENEON 27QHD240
The Samsung Odyssey OLED G85SB S34BG85 and the Corsair XENEON 27QHD240 are different types of OLEDs. The Samsung has an ultrawide display with a QD-OLED panel, allowing it to get much brighter with more vivid colors than the Corsair. On the other hand, the Corsair has a higher 240Hz refresh rate, which is ideal for competitive gaming, and it supports 4k signals up to 120Hz from the PS5 and Xbox Series X|S, which the Samsung monitor can't do.
Variants
- LS34BG850SNXZA (34")
- XENEON 27QHD240 (27")
Check Price
34"
LS34BG850SNXZA
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Amazon.com27"
XENEON 27QHD240
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Amazon.com34"
LS34BG850SNXZA
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Samsung.com27"
XENEON 27QHD240
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BestBuy.com34"
LS34BG850SNXZA
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Walmart.com27"
XENEON 27QHD240
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Walmart.com34"
LS34BG850SNXZA
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BestBuy.comMain Differences forPC Gaming
PC Gaming
Threshold
PC Gaming
8.9
8.9
1,000 cd/m² DCI-P3 Coverage ICtCp
97.1%
54.0%
Full Comparison
Design
Style
Design Picture
Curved
Yes
No
Curve Radius
1800R
Not Curved
Build Quality
8.5
8.5
Build Quality Picture
Ergonomics
6.7
8.2
Ergonomics Picture
Back Picture
Height Adjustment
4.7" (12.0 cm)
3.9" (9.9 cm)
Min Height To Top Of Panel
15.5" (39.3 cm)
16.6" (42.1 cm)
Tilt Range
-20° to 2.5°
-5° to 12.5°
Rotate Portrait/Landscape
No
Yes, Both Ways
Swivel Range
No swivel
-30° to 30°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
7.2" (18.2 cm)
18.0" (45.6 cm)
Base Depth
7.6" (19.3 cm)
8.9" (22.6 cm)
Thickness (With Display)
5.3" (13.5 cm)
6.7" (17.0 cm)
Weight (With Display)
16.7 lbs (7.6 kg)
14.5 lbs (6.6 kg)
Display
Display Picture
Size
34"
27"
Housing Width
32.1" (81.5 cm)
23.8" (60.5 cm)
Housing Height
14.1" (35.7 cm)
13.9" (35.2 cm)
Thickness (Without Stand)
2.2" (5.5 cm)
1.9" (4.8 cm)
Weight (Without Stand)
12.2 lbs (5.5 kg)
9.7 lbs (4.4 kg)
Borders Size (Bezels)
0.4" (1.1 cm)
0.2" (0.6 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
External Brick
Picture Quality
Contrast
10
10
Checkerboard Picture
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
5.6
Real Scene
230 cd/m²
161 cd/m²
Peak 2% Window
249 cd/m²
254 cd/m²
Peak 10% Window
242 cd/m²
274 cd/m²
Peak 25% Window
243 cd/m²
283 cd/m²
Peak 50% Window
242 cd/m²
204 cd/m²
Peak 100% Window
243 cd/m²
113 cd/m²
Sustained 2% Window
247 cd/m²
252 cd/m²
Sustained 10% Window
240 cd/m²
272 cd/m²
Sustained 25% Window
241 cd/m²
281 cd/m²
Sustained 50% Window
240 cd/m²
203 cd/m²
Sustained 100% Window
241 cd/m²
113 cd/m²
Automatic Brightness Limiting (ABL)
0.002
0.060
Minimum Brightness
61 cd/m²
40 cd/m²
HDR Brightness
6.6
6.2
EOTF
VESA DisplayHDR Certification
DisplayHDR TRUE BLACK 400
No Certification
Real Scene
372 cd/m²
316 cd/m²
Peak 2% Window
985 cd/m²
730 cd/m²
Peak 10% Window
456 cd/m²
639 cd/m²
Peak 25% Window
360 cd/m²
414 cd/m²
Peak 50% Window
302 cd/m²
231 cd/m²
Peak 100% Window
255 cd/m²
138 cd/m²
Sustained 2% Window
977 cd/m²
719 cd/m²
Sustained 10% Window
454 cd/m²
625 cd/m²
Sustained 25% Window
357 cd/m²
410 cd/m²
Sustained 50% Window
300 cd/m²
230 cd/m²
Sustained 100% Window
252 cd/m²
138 cd/m²
Automatic Brightness Limiting (ABL)
0.078
0.103
Horizontal Viewing Angle
10
9.9
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
70°
70°
Color Washout From Right
70°
70°
Horizontal Hue Graph
Color Shift From Left
70°
57°
Color Shift From Right
70°
70°
Horizontal 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°
Vertical Viewing Angle
9.9
10
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
70°
70°
Color Washout From Above
70°
70°
Vertical Hue Graph
Color Shift From Below
70°
69°
Color Shift From Above
70°
67°
Vertical Lightness Graph
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
8.9
50% Uniformity Picture
50% Std. Dev.
0.784%
1.149%
50% DSE
0.125%
0.118%
Black Uniformity
10
10
Native Black Uniformity Picture
Native Std. Dev.
0.433%
0.181%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
8.0
7.5
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Game (Custom)
sRGB
sRGB Gamut Area xy
101.7%
109.5%
White Balance dE (Avg.)
4.86
3.52
Color Temperature (Avg.)
6,759 K
6,192 K
Gamma (Avg.)
2.16
2.46
Color dE (Avg.)
3.04
2.89
Contrast Setting
50
N/A
RGB Settings
Gain (0,0,0), Offset (0,0,0)
Default
Gamma Setting
2.2
Default
Brightness Setting
32
100
Measured Brightness
183 cd/m²
169 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
8.5
9.3
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Game (Custom)
Standard
sRGB Gamut Area xy
108.9%
103.0%
White Balance dE (Avg.)
0.72
0.50
Color Temperature (Avg.)
6,470 K
6,448 K
Gamma (Avg.)
2.20
2.19
Color dE (Avg.)
1.42
1.78
Contrast Setting
50
50
RGB Settings
Gain (6,-7,1), Offset (2,2,1)
88-85-73
Gamma Setting
2.2
2.2
Brightness Setting
3
17
Measured Brightness
101 cd/m²
99 cd/m²
SDR Color Gamut
9.7
9.6
sRGB Color Gamut Picture
sRGB Coverage xy
99.3%
100.0%
sRGB Picture Mode
Game (Custom)
Standard
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
94.1%
88.7%
Adobe RGB Picture Mode
Game (Custom)
Standard
HDR Color Gamut
9.6
9.0
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
99.6%
96.5%
DCI-P3 Picture Mode
Game (Custom)
HDR On
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
79.9%
69.7%
Rec. 2020 Picture Mode
Game (Custom)
HDR On
HDR Color Volume
8.9
7.5
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
97.1%
54.0%
DCI-P3 Picture Mode
Game (Custom)
HDR On
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
47.2%
31.1%
Rec. 2020 Picture Mode
Game (Custom)
HDR On
Text Clarity
7.0
6.5
ClearType On
ClearType Off
Pixel Type
QD-OLED
OLED
Pixels
Subpixel Layout
Triangular RGB
RWBG
Reflections
9.4
9.1
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Matte
Total Reflections
1.4%
1.8%
Indirect Reflections
0.9%
0.9%
Calculated Direct Reflections
0.5%
0.9%
Gradient
9.7
9.3
Gradient Picture
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
OD Mode CAD Comparison
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
14
Refresh Rate Compliance
9.6
9.7
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
94%
90%
Compliance @ 120 FPS
95%
95%
Compliance @ 60 FPS
95%
98%
CAD @ Max Refresh Rate
9.9
9.9
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD no
0 to 31
OD no
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
8
13
Best 10% CAD
4
6
Worst 10% CAD
15
32
Response Time @ Max Refresh Rate
First Response Time
0.2 ms
0.3 ms
Total Response Time
0.2 ms
0.5 ms
Recommended Overdrive Setting
No OD Mode
No OD Mode
RGB Overshoot
0 RGB
2 RGB
Worst 10% RGB Overshoot
0 RGB
18 RGB
Worst 10% First Response Time
1.2 ms
0.6 ms
Worst 10% Total Response Time
1.2 ms
2.1 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
CAD @ 120Hz
9.9
9.9
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD no
0 to 31
OD no
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
9
14
Best 10% CAD
4
6
Worst 10% CAD
16
37
Response Time @ 120Hz
Worst 10% First Response Time
1.3 ms
0.5 ms
RGB Overshoot
0 RGB
2 RGB
Total Response Time
0.3 ms
0.5 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
2.3 ms
Worst 10% RGB Overshoot
0 RGB
19 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
9.9
9.9
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD no
0 to 31
OD no
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
14
14
Best 10% CAD
6
6
Worst 10% CAD
23
36
Response Time @ 60Hz
Recommended Overdrive Setting
No OD Mode
No OD Mode
First Response Time
0.5 ms
0.3 ms
Total Response Time
0.5 ms
0.5 ms
RGB Overshoot
0 RGB
2 RGB
Worst 10% Total Response Time
2.5 ms
2.3 ms
Worst 10% First Response Time
2.5 ms
0.6 ms
Worst 10% RGB Overshoot
N/A
18 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
No BFI
Maximum Frequency
60 Hz
N/A
Minimum Frequency
60 Hz
N/A
Longest Pulse Width Brightness
137 cd/m²
N/A
Shortest Pulse Width Brightness
137 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
5.9
3.2
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
4.4 RGB
11.5 RGB
Middle Gray Flicker
1.0 RGB
3.1 RGB
Light Gray Flicker
0.8 RGB
2.2 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.4
8.9
Native Resolution @ Max Hz
3.5 ms
2.7 ms
Native Resolution @ 120Hz
5.0 ms
10.4 ms
Native Resolution @ 60Hz
9.6 ms
20.7 ms
Backlight Strobing (BFI)
55.0 ms
N/A
Resolution
7.7
7.5
Native Resolution
3440 x 1440
2560 x 1440
Aspect Ratio
21:9
16:9
Megapixels
5.0 MP
3.7 MP
Pixel Density
110 PPI
109 PPI
PS5 Compatibility
7.1
9.3
PS5 Compatibility Photo
PS5 Compatibility Table
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
6.6
9.3
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
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)
24Gbps (FRL 6x4)
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
4
USB-A Rated Speed
No USB-A Ports
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
No
No
USB-C Ports
2
2
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
65W
USB-C DisplayPort Alt Mode
Yes
Yes
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
HDR10
Yes
Yes
Speakers
Yes
No
RGB Illumination
Controllable
No
Multiple Input Display
No
PIP + PBP
KVM Switch
No
Yes
On-Screen Display (OSD)
OSD Picture
Check Price
34"
LS34BG850SNXZA
SEE PRICE
Amazon.com27"
XENEON 27QHD240
SEE PRICE
Amazon.com34"
LS34BG850SNXZA
SEE PRICE
Samsung.com27"
XENEON 27QHD240
SEE PRICE
BestBuy.com34"
LS34BG850SNXZA
SEE PRICE
Walmart.com27"
XENEON 27QHD240
SEE PRICE
Walmart.com34"
LS34BG850SNXZA
SEARCH
BestBuy.com
Samsung Odyssey OLED G85SB S34BG85
Corsair XENEON 27QHD240
Comments
Samsung Odyssey OLED G85SB S34BG85 vs Corsair XENEON 27QHD240: Main Discussion
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