Head to head
Samsung Q90C vs LG G3 OLED
LG G3 OLED evo TV leads 2 to 0 on the 2 rankable specs, but Samsung Q90C QLED TV costs $400 less. Most of the 28 attributes tracked here are descriptive rather than numeric.
Catalog as of September 1, 2026
Why, in numbers
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Straight answer
Overall: 0 to 2
Buy the LG G3.
- Leads 2 of 2 rankable overall specs.
- Input lag (4K 120, game mode): ~5 ms vs ~10 ms
- Thickness: Gallery design, ~24 mm flush to wall vs ~26 mm
- Samsung Q90C is $400 cheaper. Pay the difference only if input lag (4k 120, game mode) matters to you.
At a glance
The handful of numbers that decide most purchases in this category.
Panel type≠
Samsung
Mini-LED QLED (VA)
LG
WOLED evo with MLA
Peak brightness (HDR)≠
Samsung
~1,500–2,000 nits HDR
LG
~1,400–2,000 nits small-window HDR
HDMI 2.1 portssame
Samsung
4
LG
4
True 3-Year Cost of Ownership (TCO)
Samsung Q90C
LG G3
Living Room Space & Placement Check
Real-world physical measurements for credenza width, soundbar clearance, and wall mounting.
TV Stand & Table Footprint
Heavy center pedestal stand (fits narrow 16"–24" media consoles)
No stand in box (wall mount only; official stand ~$149)
Soundbar Clearance
3.0 in clearance above pedestal (fits most soundbars)
N/A on wall; ~2.8 in with optional swivel stand
Wall Mount Profile & Depth
1.0 in NeoSlim uniform chassis depth
Ultra-slim 0.9 in flush gallery mount with zero gap
The 90-Day Owner Regret Check
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Samsung: What to watch for
- Software / Apps
Lack of Dolby Vision HDR format support.
- Hardware Quirk
Rainbow horizontal flare streaks under intense direct side lighting.
LG: What to watch for
- Hidden Cost
Zero tabletop stand included in the box.
- Hardware Quirk
Subtle green/pink tint shift at extreme off-axis viewing angles.
Picture
8 differences| Panel type | Mini-LED QLED (VA) | WOLED evo with MLA |
|---|---|---|
| Screen size | 65 inches | 65 inches |
| Resolution | 3840 × 2160 (4K) | 3840 × 2160 (4K) |
| Native refresh rate | 120 Hz (up to 144 Hz PC) | 120 Hz |
| Peak brightness (HDR)Not on the official sheet | ~1,500–2,000 nits HDR | ~1,400–2,000 nits small-window HDR |
| ContrastOur summary | Very high (local-dimmed LED, not infinite) | Infinite (per-pixel) |
| Local dimming | Quantum Mini LED full-array | Per-pixel (self-emissive) |
| Viewing angleOur summary | Wide (Ultra Viewing Angle layer) | Excellent |
| Screen finish | Matte anti-glare | Glossy |
| HDR formats | HDR10, HDR10+, HLG (no Dolby Vision) | Dolby Vision, HDR10, HLG (no HDR10+) |
Processing
3 differences| Processor | Neural Quantum Processor 4K | α9 Gen6 AI Processor 4K |
|---|---|---|
| Motion handlingOur summary | Strong; LED pixel response slower than OLED | Excellent OLED response time |
| Upscaling | AI 4K upscaling | AI Super Upscaling |
Gaming
leads 1-0| HDMI 2.1 ports | 4 | 4 |
|---|---|---|
| 4K 120Hz | Yes | Yes |
| VRR | Yes (FreeSync Premium Pro) | Yes |
| Auto low latency (ALLM) | Yes | Yes |
| Input lag (4K 120, game mode)Not on the official sheet | ~10 ms | ~5 ms (wins this row: lower) |
| G-Sync / FreeSync | FreeSync Premium Pro | NVIDIA G-Sync Compatible, FreeSync |
Audio
2 differences| Speakers | Object Tracking Sound+, 60W | 4.2 channel, 60W |
|---|---|---|
| Dolby Atmos | Yes (passthrough / object tracking) | Yes |
| eARC | Yes | Yes |
Smart TV
2 differences| Operating system | Tizen | webOS 23 |
|---|---|---|
| Voice assistants | Bixby, Alexa, Google Assistant | ThinQ, Alexa, Google Assistant |
Design
leads 1-0| ThicknessNot on the official sheet | ~26 mm | Gallery design, ~24 mm flush to wall (wins this row: lower) |
|---|---|---|
| Wall mount | Standard VESA | Included flush Gallery mount |
Ownership
2 differences| Burn-in riskOur summary | None (LED) | Yes (mitigated by pixel shift / screen move) |
|---|---|---|
| Warranty | 1 year | 1 year (panel varies by region) |
Which one should you buy
Pick this one if
Samsung Q90C QLED TV
Premium 65-inch Mini-LED QLED TV with Quantum Matrix backlighting and Object Tracking Sound.
- Excellent HDR brightness for mixed lighting
- Four full-bandwidth HDMI 2.1 ports
- Strong anti-glare finish for bright rooms
What you give up
- No Dolby Vision
- VA-style contrast still trails OLED in dark rooms
Pick this one if
LG G3 OLED evo TV
Flagship 65-inch MLA WOLED with gallery-style flush wall mount and webOS.
- Perfect blacks and infinite contrast
- MLA brightness competitive with bright QLEDs
- Best-in-class HDMI 2.1 gaming suite
What you give up
- OLED burn-in risk with static UI
- Glossy panel reflects more than matte QLED
Best for each use
Gaming
Too close to call on gaming from the spec sheets. Only input lag (4k 120, game mode) is rankable here.
Movies
Too close to call on movies from the spec sheets.
Bright rooms
Too close to call on bright rooms from the spec sheets.
Done deciding?
Open the full standalone spec sheet for either device.
Manufacturer pages: Samsung Q90C QLED TV ↗ · LG G3 OLED evo TV ↗
Common questions
Which is cheaper, the Samsung Q90C or the LG G3?
Samsung Q90C costs $400 less at list price.
What is the biggest catch with the Samsung Q90C or LG G3?
LG G3 has this deal-breaker: burn-in risk. Static news tickers, game HUDs and desktop use can leave permanent marks over the years.
Which is better for gaming, the Samsung Q90C or the LG G3?
Too close to call on gaming from the spec sheets. Only input lag (4k 120, game mode) is rankable here. VRR: Yes vs Yes G-Sync / FreeSync: FreeSync Premium Pro vs NVIDIA G-Sync Compatible, FreeSync
What cannot be compared from spec sheets?
Of the 28 specs tracked here, 26 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.