LG UltraFine 40U990A 40" White 2025

LG UltraFine 40U990A 40" White 2025

LG
85 Overall Score
vs
Gigabyte M Series OLED MO27U2 SA 26.5" Black 2025

Gigabyte M Series OLED MO27U2 SA 26.5" Black 2025

Gigabyte
90 Overall Score

What Buyers Say

LG UltraFine 40U990A 40" White 2025

No customer feedback yet

Gigabyte M Series OLED MO27U2 SA 26.5" Black 2025

90 out of 100 low confidence 5 reviews

This QD-OLED monitor delivers outstanding picture quality and color accuracy at a very competitive price, especially when bought on sale. Users praise its 240Hz refresh rate, glossy screen for vibrant HDR gaming, and elegant stand. While the built-in speakers are weak and it lacks DP 2.1, the overall value and performance are highly rated, with AI features noted as helpful for burn-in prevention.

Pros
  • outstanding picture quality
  • great color accuracy
  • 240Hz refresh rate
  • glossy screen for HDR
  • elegant stand
Cons
  • weak built-in speakers
  • no DP 2.1 support
  • glossy screen reflections in bright rooms
👍 Picture quality 5
👍 Color accuracy 4
👍 Refresh rate 3
👍 Value for money 3
👎 Built in speakers 2
👎 Connectivity 2

Scores

Office
LG
87
Gigabyte
83
Gaming
LG
74
Gigabyte
84
Professional
LG
76
Gigabyte
83
Creative
LG
76
Gigabyte
80
Entertainment
LG
78
Gigabyte
75
Portable
LG
16
Gigabyte
13

Specifications

LG UltraFine 40U990A 40"Gigabyte M Series OLED MO27U2 SA 26.5"
Display
Size39.7"27"
Resolution5120 x 21603840 x 2160
Panel TypeIPSQD-OLED★
Aspect Ratio21:916:9
Curved✓✗
Curvature2,500—
Screen Finishmattematte
Performance
Refresh Rate120 Hz240 Hz★
Response Time5 ms0.029999999329447746 ms★
Adaptive SyncFreeSync PremiumFreeSync Premium Pro★
Color & HDR
Brightness450 nits★250 nits
Color Gamut99% DCI-P399% DCI-P3
Color Depth10-bit10-bit
HDRHDR10DisplayHDR 400
HDR SupportHDR10★HDR400
Connectivity
HDMI Ports22
DisplayPort11
USB-C2★1
ThunderboltThunderbolt 5—
Speakers✓★✗
Headphone Jack✓✓
Ergonomics
Height Adjustable✓✓
Tilt✓✓
Swivel✓✓
Pivot✗✓★
VESA Mount100x100100x100
Features
Webcam✗✗
Touchscreen✗✗
PIP/PBP✓✓
Power45W45W
Weight14.11 kg7.11 kg★

Pros & Cons

LG UltraFine 40U990A 40" White 2025

  • Strong connectivity (99th percentile)99th %ile
  • Strong display (99th percentile)99th %ile
  • Strong color (97th percentile)97th %ile
  • Strong feature (96th percentile)96th %ile

Gigabyte M Series OLED MO27U2 SA 26.5" Black 2025

  • Strong performance (98th percentile)98th %ile
  • Strong display (98th percentile)98th %ile
  • Strong user sentiment (92nd percentile)92nd %ile
  • Strong ergonomic (91st percentile)91st %ile

Verdict

★ Winner: Gigabyte M Series OLED MO27U2 SA 26.5"

Scores 90 overall, wins 3 of 6 usage categories and 6 of 31 specs.

LG UltraFine 40U990A 40" Better at:

OfficePortableEntertainment

Gigabyte M Series OLED MO27U2 SA 26.5" Better at:

GamingCreativeProfessional