Samsung Odyssey G9 (G91F) vs Samsung Odyssey OLED G8 G81SF 27-inch

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Odyssey G9 (G91F) compared with Odyssey OLED G8 G81SF 27-inch

	SamsungOdyssey G9 (G91F)	SamsungOdyssey OLED G8 G81SF 27-inch
Overview
Released
Released	April 2025	April 2025
Display
Screen size
Screen size	49″	27″
Resolution
Resolution	5120 × 1440 (DQHD)	3840 × 2160 (4K) (better)
Sharpness
Sharpness	109 pixels per inch	163 pixels per inch (better)
Panel
Panel	VA	QD-OLED
Refresh rate
Refresh rate	144 Hz	240 Hz (better)
Response time (grey to grey)
Response time (grey to grey)	1 ms	0.03 ms (better)
Brightness (typical)
Brightness (typical)	350 nits (better)	250 nits
HDR certification
HDR certification	DisplayHDR 600	DisplayHDR True Black 400
HDR formats
HDR formats	VESA DisplayHDR 600, HDR10+ Gaming	HDR10+ Gaming
Contrast ratio
Contrast ratio	2,500:1	1,000,000:1
Colour range
Colour range	92% DCI-P3 (CIE 1976)	99% DCI-P3 (CIE 1976)
DCI-P3 coverage
DCI-P3 coverage	92%	99% (better)
Screen finish
Screen finish	Matte	–
Shape
Shape	Curved (1000R)	Flat
Adaptive sync
Adaptive sync	FreeSync Premium Pro	FreeSync Premium Pro
Colour depth
Colour depth	Max 1.07B colours	Up to 1 billion colours
HDR detail
HDR detail	–	DisplayHDR True Black 400 and HDR10+ Gaming
Variable refresh range
Variable refresh range	–	Samsung's current UK specification confirms FreeSync Premium Pro but lists G-Sync as No; its March 2025 launch releases state NVIDIA G-SYNC Compatible support for G81SF
Viewing angles
Viewing angles	178° / 178°	178° horizontal and vertical
Eye care
Eye care	Eye Saver Mode, Flicker Free	Eye Saver Mode, Flicker Free and UL-certified Glare Free coating
Burn-in protection
Burn-in protection	–	OLED Safeguard+ with pulsating heat pipe cooling; burn-in from normal use is covered within warranty, excluding commercial use, abuse and misuse
Calibration
Calibration	Factory tuning with factory calibration report	Factory tuning with calibration report
Connections
Video inputs
Video inputs	2 × HDMI 2.1, DisplayPort 1.4	2 × HDMI 2.1, DisplayPort 1.4
USB-C charging
USB-C charging	None	None
USB ports
USB ports	2 × USB-A	2 × USB-A
Speakers
Speakers	No	No
HDMI detail
HDMI detail	2 × HDMI 2.1, HDCP 2.2	2 x HDMI 2.1, HDCP 2.2
DisplayPort detail
DisplayPort detail	1 × DisplayPort 1.4, HDCP 2.2	1 x DisplayPort 1.4, HDCP 2.2
USB hub detail
USB hub detail	2 × USB-A 3.2 Gen 1 downstream, 1 × USB-B upstream	One USB-B upstream and two USB-A downstream ports; USB 3.2 Gen 1
Picture by picture
Picture by picture	Picture-in-Picture and Picture-by-Picture	Picture in picture; no picture by picture (Stuff)
Audio out
Audio out	Headphone jack	Headphone output
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel	Height, tilt, swivel, pivot (better)
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	15.6 kg	6.9 kg
Height adjustment
Height adjustment	120 mm (±5 mm)	120 mm, ± 5 mm tolerance
Tilt
Tilt	-2° to 11° (±2°)	-2° to +25°
Swivel
Swivel	-15° to 15° (±3°)	-30° to +30°
Pivot
Pivot	–	-92° to +92°
VESA pattern
VESA pattern	100 × 100 mm	100 x 100 mm
Size with stand
Size with stand	1147.6 × 568.4 × 420.5 mm	611.7 x 263.5 x 554.2 mm (W x D x H)
Size without stand
Size without stand	1147.6 × 363.5 × 293.8 mm	611.7 x 49.2 x 353.8 mm (W x D x H)
Weight without stand
Weight without stand	10.6 kg	3.8 kg
Colours
Colours	Black	Silver with Core Lighting+
Power and support
Power use
Power use	45 W typical, 180 W max, 0.5 W standby, 0.3 W off	45 W typical; 140 W maximum; 0.5 W standby; 0.3 W off
Energy class
Energy class	G	G
Power supply
Power supply	Internal, AC 100–240 V	External adapter; AC 100–240V
Software
Software	Super Arena Gaming UX, Black Equalizer, Virtual AIM Point, Adaptive Picture, Auto Source Switch+, Off Timer Plus	Monitor OSD; no Tizen smart services
Certifications
Certifications	Windows 11	–
In the box
In the box	DisplayPort cable, power cable (1.5 m)	HDMI cable, DisplayPort cable and 1.5 m power cable