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Samsung Odyssey OLED G8 (G80SD) vs Samsung Odyssey OLED G8 G81SF 27-inch

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SamsungOdyssey OLED G8 (G80SD)SamsungOdyssey OLED G8 G81SF 27-inch
Overview
ReleasedJune 2024April 2025
Display
Screen size31.5″27″
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Sharpness140 pixels per inch163 pixels per inch
PanelQD-OLED (3rd-gen QD-OLED)QD-OLED
Refresh rate240 Hz240 Hz
Response time (grey to grey)0.03 ms0.03 ms
Brightness (typical)250 nits250 nits
HDR certification–DisplayHDR True Black 400
HDR peak brightness1,000 nits–
HDR formatsHDR10, HDR10+ GamingHDR10+ Gaming
Contrast ratio1,000,000:11,000,000:1
Colour range99% DCI-P3 (CIE 1976)99% DCI-P3 (CIE 1976)
DCI-P3 coverage99%99%
Screen finishMatte–
ShapeFlatFlat
Adaptive syncFreeSync Premium Pro, G-Sync CompatibleFreeSync Premium Pro
Colour depthUp to 1 billion coloursUp to 1 billion colours
HDR detailHDR10, HDR10+ Gaming; 1,000-nit HDR peak (TFTCentral)DisplayHDR True Black 400 and HDR10+ Gaming
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 angles178° horizontal, 178° vertical178° horizontal and vertical
Eye careEye Saver Mode, Flicker FreeEye Saver Mode, Flicker Free and UL-certified Glare Free coating
Burn-in protectionBurn-in at normal usage covered by the warrantyOLED Safeguard+ with pulsating heat pipe cooling; burn-in from normal use is covered within warranty, excluding commercial use, abuse and misuse
CalibrationFactory tuned, factory calibration report included; Smart Calibration (basic)Factory tuning with calibration report
Connections
Video inputs2 × HDMI 2.1, DisplayPort 1.42 × HDMI 2.1, DisplayPort 1.4
USB-C chargingNoneNone
USB ports2 × USB-A2 × USB-A
EthernetNo–
SpeakersYesNo
HDMI detail2 x HDMI 2.1 (HDCP 2.2), HDMI-CEC2 x HDMI 2.1, HDCP 2.2
DisplayPort detail1 x DisplayPort 1.4 (HDCP 2.2)1 x DisplayPort 1.4, HDCP 2.2
USB hub detail2 x USB 3.0One USB-B upstream and two USB-A downstream ports; USB 3.2 Gen 1
Picture by picture–Picture in picture; no picture by picture (Stuff)
Audio out–Headphone output
Speaker detail10 W, Adaptive Sound Pro–
Design
Stand adjustsHeight, tilt, swivel, pivotHeight, tilt, swivel, pivot
VESA mountYesYes
Weight with stand8.4 kg6.9 kg
Height adjustment120 mm120 mm, ± 5 mm tolerance
Tilt-2° to 25°-2° to +25°
Swivel-30° to 30°-30° to +30°
Pivot-92° to 92°-92° to +92°
VESA pattern100 x 100 mm100 x 100 mm
Size with stand719.7 x 584.6 x 263.5 mm (W x H x D)611.7 x 263.5 x 554.2 mm (W x D x H)
Size without stand719.7 x 414.7 x 49.2 mm (W x H x D)611.7 x 49.2 x 353.8 mm (W x D x H)
Weight without stand5.3 kg3.8 kg
ColoursSilverSilver with Core Lighting+
Power and support
Power use47 W typical, 180 W maximum, 0.5 W standby45 W typical; 140 W maximum; 0.5 W standby; 0.3 W off
Energy classGG
Power supplyExternal adapter, AC 100–240 V, 50/60 HzExternal adapter; AC 100–240V
SoftwareTizen smart platform (Gaming Hub, Samsung TV Plus, Alexa Built-in, SmartThings Hub), Wi-Fi 5, Bluetooth 5.2Monitor OSD; no Tizen smart services
CertificationsUL Glare Free, AMD FreeSync Premium Pro, G-Sync Compatible–
In the boxPower cable (1.5 m), HDMI cable, DisplayPort cable, USB 3.0 cable, remote controlHDMI cable, DisplayPort cable and 1.5 m power cable

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