Device Comparison

Device 1

Device 2

	ROG Swift OLED PG27UCDM	UltraGear 25G590B
LAUNCH DATE
Announced	2025, January 2 (ahead of CES 2025)	2026, May 19
Released	2025-01-21	2026-09-01
Status	Available	Available
ADDITIONAL INFORMATION
Compatibility	Full 4K 240Hz over DisplayPort 2.1a UHBR20 needs a DP 2.1-capable GPU; 2x HDMI 2.1 (FRL) for consoles	—
Environmental	FSC MIX certified packaging	—
In the Box	DisplayPort 2.1 (DP80) cable, DisplayPort cable, HDMI Ultra High Speed cable, USB 3.2 cable, USB-C cable, power cord, VESA mount kit, ROG pouch, microfiber cloth, ROG sticker, quick start guide, warranty card	—
Launch Price (USD)	$1,099 (US MSRP per ASUS availability press release)	$999.99 (US launch price)
Models	PG27UCDM	25G590B (25G590B-B)
Price in Nigeria	₦1,538,600 (estimate, converted from US launch price)	₦1,400,000 (estimate, converted from US launch price)
TESTS
Brightness Measured	445 nits SDR, 25% window (Tom's Hardware)	—
Input Lag	18 ms total input lag (Tom's Hardware)	—
Response Time Measured	4 ms screen draw time at 240Hz (Tom's Hardware)	—
DESIGN AND BUILD
Dimensions (with stand)	61.03 x 54.95 x 21.88 cm (24.03" x 21.63" x 8.61")	571.8 x 511.2 x 207.3 mm
Dimensions (without stand)	61.03 x 36.92 x 7.05 cm (24.03" x 14.54" x 2.78")	—
Panel Type	QD-OLED (4th-generation, listed by ASUS as Tandem QD-OLED)	IPS
Screen Size	26.5 inches (marketed as 27-inch)	24.5 inches
Stand Adjustments	Tilt +20° ~ -5°, Swivel +30° ~ -30°, Pivot +90° ~ -90°, Height 0~110mm	Height, tilt, swivel
VESA Mount	100x100mm	100 x 100 mm
Weight (with stand)	7.62 kg (16.80 lbs)	5.2 kg
Weight (without stand)	4.97 kg (10.96 lbs)	—
DISPLAY AND RESOLUTION
Aspect Ratio	16:9	16:9
Brightness	1,000 cd/m² (HDR, peak)	400 nits typical (320 nits min)
Color Depth	10-bit (1073.7M colors)	8-bit (16.7 million colors)
Color Gamut	99% DCI-P3, 145% sRGB	99% DCI-P3
Contrast Ratio	1,500,000:1 (typical)	1000:1 (typical)
Factory Calibration	ΔE < 2, with Color Calibration E-report	—
HDR Support	VESA DisplayHDR 400 True Black, HDR10, Dolby Vision	VESA DisplayHDR 400
Pixel Density	166 ppi (pixel pitch 0.153 mm)	0.282 x 0.281 mm pixel pitch
Refresh Rate	240 Hz	1000Hz (native), 1100Hz (overclocked, DisplayPort 2.1)
Resolution	3840 x 2160 (4K UHD)	1920 x 1080 pixels
Response Time	0.03 ms (GTG)	1ms (GtG)
Screen Coating	Anti-reflection	Low-reflection film, ATW polarizer
Viewing Angles	178° / 178° (CR≧10)	178° / 178°
GAMING FEATURES
Adaptive Sync	AMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible, VESA AdaptiveSync Display 240Hz	AMD FreeSync Premium, NVIDIA G-Sync Compatible
Gaming Aids	GamePlus, GameVisual, Shadow Boost, Extreme Low Motion Blur (ELMB)	—
Low Input Lag Mode	GameFast Input technology	—
CONNECTIVITY
Audio Out	Earphone jack	Yes, 4-pole headphone out (sound + mic)
DisplayPort	1x DisplayPort 2.1a (UHBR20, up to 80Gbps)	1x DisplayPort 2.1 (UHBR20)
Ethernet / KVM	Built-in KVM switch	—
HDMI	2x HDMI 2.1 (FRL)	2x HDMI 2.1
USB Hub	3x USB 3.2 Gen 1 Type-A	USB Type-C
USB-C	1x USB-C with DP Alt Mode and 90W Power Delivery	—
POWER
Power Consumption	<80W (power saving mode <0.5W, power off <0.3W)	28 W typical
Voltage	100-240V, 50/60Hz	100–240 V AC, 50/60 Hz
EXTRAS AND FEATURES
Eye Care	Flicker-free; TÜV Flicker-free and TÜV Low Blue Light (Hardware Solution) certified; OLED Anti-Flicker 2.0	Flicker Safe, Reader Mode
Other Features	ASUS OLED Care Pro with Neo Proximity Sensor, Aura Sync lighting, DisplayWidget Center, tripod socket (1/4"), Kensington lock	Motion Blur Reduction Pro, AI Scene Optimization, AI Sound; UltraGear emblem RGB lighting
Warranty	3 years (including panel burn-in)	—