LG
LG UltraGear 27GX790A-B
$999.99
Released 2024-09
Best Computer Monitors · head-to-head
LG UltraGear 27GX790A-B vs ASUS ROG Swift OLED PG27AQDP
A sourced, side-by-side comparison. LG UltraGear 27GX790A-B is cheaper at $999.99. Every spec and price links to its source.
ASUS
ASUS ROG Swift OLED PG27AQDP
$999.99
Released 2024-09
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | LG UltraGear 27GX790A-B | ASUS ROG Swift OLED PG27AQDP |
|---|---|---|
| US price | $999.99 | $999.99 |
| Brand | LG | ASUS |
| Released | 2024-09 | 2024-09 |
| Size (in) | 27 | 27 |
| Resolution | 2560x1440 | 2560x1440 |
| Panel type | OLED | WOLED |
| Refresh (Hz) | 480 | 480 |
| Response ms | 0.03 | 0.03 |
| HDR | VESA DisplayHDR True Black 400 | VESA DisplayHDR True Black 400 |
| Ports | 1x DP 2.1, 2x HDMI 2.1, 1x USB-B 3.0 (upstream), 2x USB-A 3.0 | 1x DP 1.4, 2x HDMI 2.1, 2x USB-A 3.2 Gen 1 |
| Adaptive sync | NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro | AMD FreeSync Premium, NVIDIA G-Sync Compatible |
| Release | 2024-09 | 2024-09 |
Sources — LG UltraGear 27GX790A-B: newegg.com (verified 2026-06-15). ASUS ROG Swift OLED PG27AQDP: newegg.com (verified 2026-06-15).
What's the difference between the LG UltraGear 27GX790A-B and ASUS ROG Swift OLED PG27AQDP?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Panel type: LG UltraGear 27GX790A-B OLED vs ASUS ROG Swift OLED PG27AQDP WOLED
- 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 ASUS ROG Swift OLED PG27AQDP 1x DP 1.4, 2x HDMI 2.1, 2x USB-A 3.2 Gen 1
- Adaptive sync: LG UltraGear 27GX790A-B NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro vs ASUS ROG Swift OLED PG27AQDP AMD FreeSync Premium, NVIDIA G-Sync Compatible
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
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, 1 lab-tested.)
Praised: Motion clarity nearly as crisp as a still image at 480Hz; Exceptional contrast from per-pixel zero-nit black levels; Accurate out-of-box color (6400K vs 6500K target, gamma 2.2).
Flagged: Distracting dirty-screen effect (DSE) during use; Pixelation visible around small fonts and interface buttons; Modest SDR brightness (~250 nits sustained).
ASUS ROG Swift OLED PG27AQDP
One whitelisted tester source (Tom's Hardware, lab-measured, published 2024-09-04) was verified for the ASUS ROG Swift PG27AQDP. All four quotes and all eight measured values were re-confirmed verbatim against the review. Tom's Hardware calls the PG27AQDP the pinnacle of premium gaming monitors, measuring a 400-nit SDR peak, 1,300-nit HDR highlights, 709-nit 25% HDR window, over 97% DCI-P3, and 15ms total input lag at a tested 480Hz QHD. (1 sourced review, 1 lab-tested.)
Praised: Class-leading motion clarity and gaming performance at 480Hz QHD; Wide color gamut, over 97% DCI-P3 coverage; Low total input lag (15ms) despite full QHD resolution.
Flagged: SDR peak brightness limited to a measured 400 nits, typical OLED ceiling; Input lag (15ms) does not match the record-setting 11ms of the FHD-mode PG32UCDP.