LG
LG UltraGear 27GX790A-B
$999.99
Released 2024-09
Best Computer Monitors · head-to-head
LG UltraGear 27GX790A-B vs Samsung Odyssey OLED G6 (LS27FG602S)
A sourced, side-by-side comparison. LG UltraGear 27GX790A-B is cheaper at $999.99. Every spec and price links to its source.
Samsung
Samsung Odyssey OLED G6 (LS27FG602S)
$999.99
Released 2024-08
Which is better: the LG UltraGear 27GX790A-B or Samsung Odyssey OLED G6 (LS27FG602S)?
The Samsung Odyssey OLED G6 (LS27FG602S) wins 1 of the 1 specs we compare head to head; the other wins 0.
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Key specs, head to head
The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | LG UltraGear 27GX790A-B | Samsung Odyssey OLED G6 (LS27FG602S) |
|---|---|---|
| US price | $999.99 | $999.99 |
| Brand | LG | Samsung |
| Released | 2024-09 | 2024-08 |
| Size (in) | 27 | 27 |
| Resolution | 2560x1440 | 2560x1440 |
| Panel type | OLED | OLED |
| Refresh (Hz) | 480 | 500 |
| Response ms | 0.03 | 0.03 |
| HDR | VESA DisplayHDR True Black 400 | VESA DisplayHDR 500 |
| 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 |
| Adaptive sync | NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro | AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible |
| Release | 2024-09 | 2024-08 |
Sources — LG UltraGear 27GX790A-B: newegg.com (verified 2026-06-15). Samsung Odyssey OLED G6 (LS27FG602S): newegg.com (verified 2026-06-15).
What's the difference between the LG UltraGear 27GX790A-B and Samsung Odyssey OLED G6 (LS27FG602S)?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Refresh (Hz): LG UltraGear 27GX790A-B 480 vs Samsung Odyssey OLED G6 (LS27FG602S) 500
- HDR: LG UltraGear 27GX790A-B VESA DisplayHDR True Black 400 vs Samsung Odyssey OLED G6 (LS27FG602S) VESA DisplayHDR 500
- 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 Samsung Odyssey OLED G6 (LS27FG602S) 1x DP 1.4, 2x HDMI 2.1
- Adaptive sync: LG UltraGear 27GX790A-B NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro vs Samsung Odyssey OLED G6 (LS27FG602S) AMD FreeSync Premium Pro, 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).
Samsung Odyssey OLED G6 (LS27FG602S)
Three whitelisted outlets (Tom's Hardware, PCWorld, TechRadar) each reviewed this exact 27-inch 500Hz QD-OLED (S27FG60/G60SF). All rate it a top-tier OLED for motion clarity, speed, and color, while dinging its 1440p sharpness, missing USB-C, and limited SDR presets. Tom's Hardware and PCWorld ran lab measurements; TechRadar was hands-on with no independent numbers. Several Tom's Hardware quotes/measurements sat on later review pages not captured by the fetch and were dropped. (3 sourced reviews, 2 lab-tested.)
Praised: Blistering 500Hz motion clarity with no perceptible input lag; Vibrant, wide-gamut, accurate color (98-108% DCI-P3); Premium metal build and slick design.
Flagged: No USB-C connectivity; Only 1440p; sharpness weak for the price; Limited/disappointing SDR calibration and presets.