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LG UltraFine 40U990A-W

Ranked #7 of 28 in Best ultrawide monitors, ranked by official specs. Here is every spec we scored, where it came from, and how it compares.

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#7

LG UltraFine 40U990A-W

Best for: 39.7-inch, 21:9, 4K UHD, 120 Hz official refresh, 450 nits official typical brightness, IPS

5.1/10

What we like

  • Official table lists a 4K UHD (5120×2160) resolution
  • Official typical brightness is 450 nits
  • Official table lists USB-C power delivery at 96 W
  • Official table lists a 39.7-inch 21:9 panel

Watch out for

    Score breakdown

    Official panel size 30%
    Official resolution (megapixels, computed) 25%
    Official refresh rate 25%
    Official typical brightness 20%
    Official panel size39.7 inches
    Official resolution (megapixels, computed)11.06 MP
    Official refresh rate120 Hz
    Official typical brightness450 nits
    Official resolution5120×2160
    Megapixels (computed from official resolution)11.06 MP
    Official refresh rate120 Hz
    Official typical brightness450 nits (Brightness (Typical, Minimum))
    Official panel size39.7 inches
    Official aspect ratio21:9
    Official panel typeIPS
    Official USB-C power delivery96 W
    Official curvature2500R
    Official speakersYes
    Official I/O portsThunderbolt™ 5: Yes · USB Down-stream: USB-C x 4EA(15Wx1EA, 4.5Wx3EA) 10Gbps USB-A x 2EA 10Gbps · DisplayPort: 1 · USB Up-stream: Yes (via Thunderbolt & USB-C 10Gbps) · Thunderbolt (Power Delivery): 96W · USB Type-C: 4 · HDMI: 2 · HDMI Version 2.1: Yes · USB-C (Data Transmission)…
    Source noteMegapixels are computed from the official resolution 5120×2160.
    PriceCheck price
    Check price at Amazon
    Specs source:

    How it compares

    Open the full comparison table

    LG UltraGear 52G930B-B
    7.4/10
    #1 · 51.6-inch, 21:9, 4K UHD, 240 Hz official refresh, 320 nits official typical brightness, VA
    LG UltraGear 45GR65DC-B
    6.0/10
    #2 · 44.5-inch, 32:9, UWQHD, 200 Hz official refresh, 400 nits official typical brightness, VA
    ASUS ROG STRIX XG49VQ
    5.6/10
    #3 · 49-inch, 32:9, Full HD, 144 Hz official refresh, 450 nits official typical brightness, VA
    LG UltraGear 45GX900A-B
    5.4/10
    #4 · 44.5-inch, 21:9, UWQHD, 240 Hz official refresh, 275 nits official typical brightness, OLED
    LG UltraGear 45GX90SB-B
    5.4/10
    #5 · 44.5-inch, 21:9, UWQHD, 240 Hz official refresh, 275 nits official typical brightness, OLED
    LG UltraGear 45GX950B-B
    5.4/10
    #6 · 44.5-inch, 21:9, 4K UHD, 165 Hz official refresh, 275 nits official typical brightness, OLED
    ROG Swift OLED PG49WCD
    5.0/10
    #8 · 49-inch, 32:9, UWQHD, 144 Hz official refresh, 250 nits official typical brightness
    LG UltraGear 39GX950B-B
    4.9/10
    #9 · 39-inch, 21:9, 4K UHD, 165 Hz official refresh, 335 nits official typical brightness, OLED
    TUF Gaming VG34WQML5A
    4.5/10
    #10 · 34-inch, 21:9, UWQHD, 250 Hz official refresh, 400 nits official typical brightness, VA
    TUF Gaming VG34VQL1B
    4.3/10
    #11 · 34-inch, 21:9, UWQHD, 165 Hz official refresh, 550 nits official typical brightness, VA
    TUF Gaming VG34WQML5F
    4.2/10
    #12 · 34-inch, 21:9, UWQHD, 260 Hz official refresh, 350 nits official typical brightness, VA
    TUF Gaming VG34WQ5A
    3.9/10
    #13 · 34-inch, 21:9, UWQHD, 200 Hz official refresh, 400 nits official typical brightness, VA
    TUF Gaming VG34WQ5F
    3.9/10
    #14 · 34-inch, 21:9, UWQHD, 200 Hz official refresh, 400 nits official typical brightness, VA
    TUF Gaming VG34WQL5A
    3.9/10
    #15 · 34-inch, 21:9, UWQHD, 200 Hz official refresh, 400 nits official typical brightness, VA
    LG UltraGear 34GX90SB-W
    3.8/10
    #16 · 34-inch, 21:9, UWQHD, 240 Hz official refresh, 275 nits official typical brightness, OLED
    TUF Gaming VG34VQ3B
    3.7/10
    #17 · 34-inch, 21:9, UWQHD, 180 Hz official refresh, 400 nits official typical brightness, VA
    TUF Gaming VG34VQL3A
    3.7/10
    #18 · 34-inch, 21:9, UWQHD, 180 Hz official refresh, 400 nits official typical brightness, VA
    BenQ EX3410R
    2.9/10
    #19 · 34-inch, 21:9, UWQHD, 144 Hz official refresh, 350 nits official typical brightness, VA
    BenQ EX3415R
    2.3/10
    #20 · 34-inch, 21:9, UWQHD, 144 Hz official refresh, 200 nits official typical brightness, IPS
    ASUS VA34VCPSR
    2.0/10
    #21 · 34-inch, 21:9, UWQHD, 100 Hz official refresh, 300 nits official typical brightness, VA
    ASUS VU34WCIP-W
    2.0/10
    #22 · 34-inch, 21:9, UWQHD, 100 Hz official refresh, 300 nits official typical brightness, VA
    LG 34SR65QC-B
    2.0/10
    #23 · 34-inch, 21:9, UWQHD, 100 Hz official refresh, 300 nits official typical brightness, VA
    LG 34U60ZB-B
    2.0/10
    #24 · 34-inch, 21:9, UWQHD, 120 Hz official refresh, 250 nits official typical brightness, VA
    LG 34WR55QK-B
    2.0/10
    #25 · 34-inch, 21:9, UWQHD, 100 Hz official refresh, 300 nits official typical brightness, VA
    BenQ EW3880R
    1.9/10
    #26 · 37.5-inch, 21:9, UWQHD, 60 Hz official refresh, 230 nits official typical brightness, IPS
    BenQ PD3420Q
    1.7/10
    #27 · 34-inch, 21:9, UWQHD, 60 Hz official refresh, 350 nits official typical brightness, IPS
    ProArt Display PA34VCNV
    1.4/10
    #28 · 34.1-inch, 21:9, UWQHD, 60 Hz official refresh, 300 nits official typical brightness, IPS