LG UltraGear 27G640A-B 27" Black 2026

LG UltraGear 27G640A-B 27" Black 2026

LG
87 Overall Score
vs
Acer SH243Y P1si 23.8" Black 2025

Acer SH243Y P1si 23.8" Black 2025

Acer
44 Overall Score

Scores

Office
LG
83
Acer
54
Professional
LG
80
Acer
32
Gaming
LG
79
Acer
43
Creative
LG
79
Acer
28
Entertainment
LG
70
Acer
32
Portable
LG
15
Acer
17

Specifications

LG UltraGear 27G640A-B 27"Acer SH243Y P1si 23.8"
Display
Size27"23.8"
Resolution2560 x 14401920 x 1080
Panel TypeIPSIPS
Aspect Ratio16:916:9
Curved
Performance
Refresh Rate300 Hz144 Hz
Response Time1 ms1 ms
Adaptive SyncFreeSync PremiumFreeSync
Color & HDR
Brightness400 nits
Color GamutDCI P3 95% (CIE1976)
Color Depth10-bit
HDRHDR10
HDR SupportHDR10
Connectivity
HDMI Ports21
DisplayPort1
USB-C1
Speakers
Headphone Jack
Ergonomics
Height Adjustable
Tilt
Swivel
Pivot
VESA Mount100x100
Features
Webcam
Touchscreen
PIP/PBP
Power45W
Weight5.49 kg3.28 kg

Pros & Cons

LG UltraGear 27G640A-B 27" Black 2026

  • Strong performance (91st percentile)91st %ile
  • Strong ergonomic (91st percentile)91st %ile
  • Strong color (89th percentile)89th %ile
  • Strong connectivity (89th percentile)89th %ile

Acer SH243Y P1si 23.8" Black 2025

  • Strong social proof (91st percentile)91st %ile
  • Strong performance (76th percentile)
  • Strong ergonomic (69th percentile)
  • Below average color (20th percentile)20th %ile
  • Below average display (21st percentile)
  • Below average feature (24th percentile)
  • Below average portability (33rd percentile)

Pricing

Acer SH243Y P1si 23.8" Black 2025 is $132 cheaper (2.4x less).

LG UltraGear 27G640A-B 27" Black 20260.385score per dollar
vs
Acer SH243Y P1si 23.8" Black 20250.463score per dollar

Acer SH243Y P1si 23.8" Black 2025 offers 1.2x better value for money

Acer SH243Y P1si 23.8" Black 2025

Verdict

Winner: LG UltraGear 27G640A-B 27"

Scores 87 overall, wins 5 of 6 usage categories and 12 of 28 specs.

LG UltraGear 27G640A-B 27" Better at:

GamingOfficeCreativeProfessionalEntertainment

Acer SH243Y P1si 23.8" Better at:

Portable

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