# LG UltraGear 27GX790A-B vs MSI MAG 271QPX QD-OLED: specs and price compared

A sourced, side-by-side comparison of the LG UltraGear 27GX790A-B (LG) and MSI MAG 271QPX QD-OLED (MSI) among computer monitors. MSI MAG 271QPX QD-OLED is the cheaper of the two at $649.99.

## Side by side

| Spec | LG UltraGear 27GX790A-B | MSI MAG 271QPX QD-OLED |
| --- | --- | --- |
| US price | $999.99 | $649.99 |
| Brand | LG | MSI |
| Released | 2024-09 | 2024-06 |
| Size (in) | 27 | 27 |
| Resolution | 2560x1440 | 2560x1440 |
| Panel type | OLED | QD-OLED |
| Refresh (Hz) | 480 | 360 |
| Response ms | 0.03 | 0.03 |
| HDR | VESA DisplayHDR True Black 400 | VESA DisplayHDR 400 |
| Ports | 1x DP 2.1, 2x HDMI 2.1, 1x USB-B 3.0 (upstream), 2x USB-A 3.0 | 1x DP 1.4a, 2x HDMI 2.1, 1x USB-C (DP Alt) |
| Adaptive sync | NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro | AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible |

## Key differences

- Panel type: LG UltraGear 27GX790A-B OLED vs MSI MAG 271QPX QD-OLED QD-OLED
- Refresh (Hz): LG UltraGear 27GX790A-B 480 vs MSI MAG 271QPX QD-OLED 360
- HDR: LG UltraGear 27GX790A-B VESA DisplayHDR True Black 400 vs MSI MAG 271QPX QD-OLED VESA DisplayHDR 400
- Ports: LG UltraGear 27GX790A-B 1x DP 2.1, 2x HDMI 2.1, 1x USB-B 3.0 (upstream), 2x USB-A 3.0 vs MSI MAG 271QPX QD-OLED 1x DP 1.4a, 2x HDMI 2.1, 1x USB-C (DP Alt)
- Adaptive sync: LG UltraGear 27GX790A-B NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro vs MSI MAG 271QPX QD-OLED AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible

## What reviewers say

**LG UltraGear 27GX790A-B** — Only one whitelisted tester review (PCWorld, tested 2025-02-21) returned verifiable verbatim text and lab measurements for this exact model (27GX790A-B). All three quoted sentences and all four measured values (with units) were re-confirmed verbatim on the page. Candidate reviews from RTINGS, Tom's Hardware and Tom's Guide were excluded because their page bodies returned only navigation/no copyable text. PCWorld praises near-still-image motion clarity at 480Hz and per-pixel zero-nit contrast, but flags a distracting dirty-screen effect and pixelation around small fonts. (1 sourced review.)

## Sources

- LG UltraGear 27GX790A-B: https://www.newegg.com/p/pl?d=LG+27GX790A+480Hz (newegg.com, verified 2026-06-15)
- MSI MAG 271QPX QD-OLED: https://www.newegg.com/p/pl?d=MSI+MAG+271QPX+QD-OLED+360Hz (newegg.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/computer-monitors/lg-ultragear-27gx790a-b-vs-msi-mag-271qpx-qd-oled/
Cite: Per The Front Desk Review, LG UltraGear 27GX790A-B ($999.99) vs MSI MAG 271QPX QD-OLED ($649.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/computer-monitors/lg-ultragear-27gx790a-b-vs-msi-mag-271qpx-qd-oled/
License: CC BY 4.0.