Samsung Odyssey OLED G6 G60SF (27-inch) / LG UltraGear 27GX790A-B

Samsung Odyssey OLED G6 G60SF (27-inch): LS27FG602SUXXU · 27-inch QD-OLED, 2560 × 1440, 500 Hz

LG UltraGear 27GX790A-B: 27-inch class (26.5-inch) QHD 480 Hz OLED

SpecificationSamsung Odyssey OLED G6 G60SF (27-inch)LG UltraGear 27GX790A-B
Release year20252025
Panel27-inch QD-OLED · 2560 × 1440 (QHD), 16:9

QD-OLED puts a quantum-dot colour converter over a blue-emitting OLED layer; each pixel produces its own light.

Samsung		26.5-inch (27-inch class) OLED, 16:9

The actual viewable diagonal is 26.5 inches.

LG
Refresh rateUp to 500 Hz

Samsung notes the maximum may vary by input source; reaching 500 Hz requires a source that can output it.

Samsung		480 Hz

480 Hz means up to 480 frames per second; seeing that benefit requires the game and GPU to deliver close to 480 fps.

LG
Response time0.03 ms (GtG)

GtG is the time a pixel takes to change from one grey level to another; lower values mean less smearing in motion.

Samsung		0.03 ms (GtG)

Grey-to-grey pixel transition time; it is not input lag.

LG
Brightness300 nits (typical)

The typical figure is for full-screen SDR; small bright areas go higher in HDR.

Samsung		Typical 275 cd/m² (min 250); HDR peak at 1.5% APL typical 1,300 cd/m² (min 1,040)

1,300 nits applies only to small highlights covering 1.5% of the screen; on a full white screen OLED automatic brightness limiting kicks in.

LG
HDRDisplayHDR True Black 500 · HDR10+ Gaming · 1000 nits typical, 800 nits minimum at 3% window (peak brightness set to High)

A 3% window means only a small part of the screen is lit; brightness drops below this in large bright scenes.

Samsung		HDR10; VESA DisplayHDR True Black 400

True Black is the VESA HDR tier for very low black-level displays such as OLED.

LG
Colour99% DCI-P3 · 1 billion colours

DCI-P3 is the wide colour space used for cinema and HDR content.

Samsung		DCI-P3 98.5% (CIE 1976); 10-bit (1.07 billion colours)

The sheet lists a paper calibration report in the box.

LG
SurfaceGlare Free anti-reflective film Samsung—
Variable refreshAMD FreeSync Premium Pro · NVIDIA G-Sync Compatible

Matches the monitor's refresh rate to the graphics card's frame rate to prevent tearing.

Samsung		VESA AdaptiveSync; NVIDIA G-SYNC Compatible; AMD FreeSync Premium Pro

Variable refresh matches the panel to the GPU frame rate to reduce tearing and stutter. LG’s page also lists VESA ClearMR 21000 certification.

LG
Connectivity1 × DisplayPort 1.4 · 2 × HDMI 2.1 · 1 × USB-B upstream · 2 × USB-A 3.2 Gen 1 · headphone out

There is no USB-C input and no built-in speaker.

Samsung		—
Stand120 mm height adjustment · tilt −2° / 25° · swivel ±30° · pivot ±92° · VESA 100 × 100 SamsungTilt -5°/15°; swivel -30°/30°; height 110 mm; clockwise pivot; VESA 100 × 100

It has a tool-free 1Click stand mount and hexagonal RGB lighting on the back.

LG
OLED protectionOLED Safeguard+: pulsating heat pipe, thermal modulation, logo and taskbar detection, screen saver

These features are meant to reduce the risk of static images leaving burn-in on the OLED panel.

Samsung		—
Power140 W maximum · 41.4 W typical · external adapter SamsungExternal adapter, 100–240 V; under 0.5 W in sleep, under 0.3 W off

The sheet does not list typical power consumption.

LG
Size and weightWith stand 611.7 × 554.2 × 263.5 mm, 6.9 kg · without stand 611.7 × 353.8 × 49.2 mm, 3.8 kg SamsungWith stand 23.8 × 22.8 × 9.8 in (raised), 20.5 lb; without stand 23.8 × 13.8 × 1.8 in, 11.2 lb

About 9.3 kg with stand, about 5.1 kg without.

LG
Model—27GX790A-B (US version 27GX790A-B.AUS)

LG’s US spec sheet carries a 2024 copyright; LG Brazil lists the model as a 2025 product.

LG
Resolution and pixel pitch—2560 × 1440 (QHD); 0.2292 mm pixel pitch

QHD at 27 inches means lower pixel density than 4K; small text looks less crisp but high frame rates are easier to reach on the GPU.

LG
Contrast—1,500,000:1 (typical)

OLED pixels can switch fully off, so black level is near zero; LG’s page notes the figure is measured at 25% APL.

LG
Screen surface—Anti-glare, low-reflection front polariser LG
Inputs—2× HDMI (HDMI 2.1 FRL compliant); 1× DisplayPort 2.1

FRL is the high-bandwidth transfer mode of HDMI 2.1. There is no USB-C video input.

LG
USB and audio—USB 3.0: 1 upstream, 2 downstream; 4-pole headphone out (sound + mic); DTS Headphone:X

No built-in speakers are listed.

LG
Burn-in care—OLED Care

LG says the feature helps prevent burn-in from static high-contrast images left on screen for long periods but may not prevent all image retention.

LG
In the box—Power cord, DisplayPort 2.1 cable, HDMI 2.1 cable, USB A-to-B cable, paper calibration report LG