Samsung
Samsung Q90C QLED TV
TVs
$1,799List price
Explore this product Your shortlist, side by side
Samsung Q90C QLED TV vs Samsung S90D OLED TV
Find the differences that matter for your next decision.
Samsung
Samsung S90D OLED TV
TVs
$1,599List price
Explore this product What matters most to you?
Start with all rankable specifications, or focus on a particular use.
Your starting point
Buy the Samsung Q90C.
- Leads 2 of 3 rankable overall specs; Samsung S90D takes 1.
- Peak brightness (HDR): ~1,500–2,000 nits HDR vs ~1,100–1,300 nits peak HDR
How we reached this
We compare the published specifications relevant to your priority. Each rankable specification counts once; your selected requirements can rule a product out. This is a guide to the numbers, not a laboratory performance score.
Thickness: ~26 mm vs ~39 mm at thickest section
Samsung S90D is $200 cheaper. Pay the difference only if peak brightness (hdr) matters to you.
Refine your requirements
What would rule one out?
Side by side
The differences, in detail.
Start with the key specs, then explore as much as you need.
| What you’re comparing | Samsung Q90C QLED TV | Samsung S90D OLED TV |
|---|---|---|
| Panel typePicture | Mini-LED QLED (VA) | QD-OLED / WOLED (size dependent) |
| Native refresh ratePicture | 120 Hz (up to 144 Hz PC) | 120 Hz (up to 144 Hz with PC) |
| Peak brightness (HDR)Picture | ~1,500–2,000 nits HDR | ~1,100–1,300 nits peak HDR |
| ContrastPicture | Very high (local-dimmed LED, not infinite) | Infinite (per-pixel self-lit) |
| HDMI 2.1 portsGaming | 4 | 4 |
Showing 5 of 28 specifications. Missing values stay unlisted. About the sources
Both sides of the decision
What you gain. What you give up.
Samsung Q90C QLED TV
Reasons to choose it
- Excellent HDR brightness for mixed lighting
- Four full-bandwidth HDMI 2.1 ports
- Strong anti-glare finish for bright rooms
Worth considering
- No Dolby Vision
- VA-style contrast still trails OLED in dark rooms
Samsung S90D OLED TV
Reasons to choose it
- Infinite contrast with deep true blacks
- 144Hz refresh rate with four HDMI 2.1 ports for PC gaming
- Great value OLED compared to flagship S95D
Worth considering
- No Dolby Vision support (Samsung uses HDR10+)
- Built-in speakers lack deep low-end bass
Beyond the spec sheet
Living with your choice.
Explore the ownership details available for this pair.
Is the newer model worth it?
Samsung sibling models compared across generations.
Our recommendation: Compare the spec differences below to see if the price premium justifies the newer model's additions.
Living Room Space & Placement Check
Real-world physical measurements for credenza width, soundbar clearance, and wall mounting.
TV Stand & Table Footprint
Q90C
Heavy center pedestal stand (fits narrow 16"–24" media consoles)
S90D
Standard pedestal or dual-foot support
Soundbar Clearance
Q90C
3.0 in clearance above pedestal (fits most soundbars)
S90D
Standard clearance
Wall Mount Profile & Depth
Q90C
1.0 in NeoSlim uniform chassis depth
S90D
Standard VESA wall depth
Everyday ownership notes
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Q90C: What to watch for
- Software / Apps
Lack of Dolby Vision HDR format support.
- Hardware Quirk
Rainbow horizontal flare streaks under intense direct side lighting.
S90D: What to watch for
- Software / Apps
Smart TV interface runs sponsored ads and banner recommendations.
- Ergonomics
Thin integrated TV speakers lack low-end bass punch.
Know what’s behind the comparison
Published specs. Visible sources.
Clinchmark compares manufacturer specifications and other published information. We have not independently lab-tested these products. Editorial assessments and unknown values are identified in the specification details.
Catalog snapshot: September 1, 2026. Prices, availability, and provider terms can change.
Still weighing it up?
Which is cheaper, the Samsung Q90C or the Samsung S90D?
Samsung S90D costs $200 less at list price.
What is the biggest catch with the Samsung Q90C or Samsung S90D?
Samsung S90D 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 Samsung S90D?
Too close to call on gaming from the spec sheets. Only input lag (4k 120, game mode) is rankable here. 4K 120Hz: Yes vs Yes VRR: Yes vs Yes
What cannot be compared from spec sheets?
Of the 28 specs tracked here, 25 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.