LG · OLED

45GX90SB-B

Name: LG 45GX90SB-B
Brand: LG
SKU: 45GX90SB-B

44.5-inch OLED with 3440 × 1440 at up to 240Hz and a wider desktop.

44.5" · 3440 × 1440 · 240Hz native

Exact model: 45GX90SB-B

Price not verified

Stock not verified

View at LG

Compare

LG 45GX90SB-B OLED monitor — Product image: LG

Check before you buy

Before you buy.

USB-C carries video and supplies up to 65W. Compare that with your computer's charging needs.

Exact model specifications

Specifications.

Model number: 45GX90SB-B
Screen size: 44.5 inches
Panel technology: OLED
Native resolution: 3440 × 1440
Pixel density: 84 ppi (approx.)
Maximum at native resolution: 240Hz
Screen format: Ultrawide
Curvature: 800R
Screen coating: Not confirmed
Connections: HDMI 2.1, DisplayPort, USB-C
USB-C video: Yes
USB-C charging: 65W
Built-in speakers: Yes
KVM switch: Not confirmed
HDR format / certification: VESA DisplayHDR True Black 400
Variable refresh rate: G-SYNC Compatible, FreeSync Premium Pro
Burn-in coverage: Not confirmed

Sources and product image 2 sources

lg.com
US · Checked 2026-10-25
lg.com
UK · Checked 2026-10-25

Image: LG product image.

Compare before deciding

Alternatives for the same use.

Keep the same screen size class and resolution, then compare what changes.

Compare all 3

Closest screen match

AcerWOLED

Predator X45 BMIIPHUZX

Exact model: UM.MXXAA.001

44.5" · 3440 × 1440 at 240Hz native

Same 45-inch class and native refresh for gaming.

Compared with 45GX90SB-B

USB-C charging: 90W45GX90SB-B: 65W
Documented inputs: HDMI, DisplayPort45GX90SB-B: HDMI 2.1, DisplayPort, USB-C
KVM switch: Yes45GX90SB-B: Not confirmed
Burn-in coverage: Covered for 3 years, subject to warranty terms45GX90SB-B: Not confirmed

USB-C carries video and supplies up to 90W. Compare that with your computer's charging needs.

Compare with this model

Price not verified

Stock not verified

View at Acer Full specifications and sources →

More USB-C charging power

AOCWOLED

AGON PRO AG456UCZD

Exact model: AG456UCZD

44.5" · 3440 × 1440 at 240Hz native (240Hz uses DisplayPort or USB-C. HDMI is limited to 100Hz at 3440 × 1440.)

Same 45-inch class and native refresh for gaming.

Compared with 45GX90SB-B

Native resolution and refresh: 3440 × 1440 at 240Hz. 240Hz uses DisplayPort or USB-C. HDMI is limited to 100Hz at 3440 × 1440.45GX90SB-B: 3440 × 1440 at 240Hz
USB-C charging: 90W45GX90SB-B: 65W
Documented inputs: HDMI 2.0 × 2, DisplayPort 1.4, USB-C DP Alt Mode, USB-A hub × 445GX90SB-B: HDMI 2.1, DisplayPort, USB-C
KVM switch: Yes45GX90SB-B: Not confirmed

Its 800R curve is pronounced. Use DisplayPort or USB-C for 240Hz; HDMI tops out at 100Hz at the native resolution.

USB-C carries video and supplies up to 90W. Compare that with your computer's charging needs.

Compare with this model

Price not verified

Stock not verified

View at B&H Full specifications and sources →