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28 facts in comparison

Samsung S90H OLED vs TCL QM7K

This comparison puts the Samsung S90H OLED and TCL QM7K side by side — two TVs measured against the same 28-spec sheet, with every meaningful gap scored and explained. On our weighted VS Score the Samsung S90H OLED finishes ahead, 82 to 75 — a solid lead.

The single biggest measurable gap is HDR formats: HDR10, HDR10+, HLG vs Dolby Vision. None of our retail partners currently lists the Samsung S90H OLED, so availability may be limited and price cannot factor into this comparison.

PictureGamingAudioSmartfeaturesConnectivity

Tap a category to see which one wins it.

82Points
75Points

Where the Samsung S90H OLED beats the TCL QM7K

  • 21 Hz more refresh rate ?165 Hz vs 144 Hz
  • 2 % more DCI-P3 coverage ?98 % vs 96 %
  • Has HDR10, HDR10+, HLG ?
  • 4 ms less input lag ?9 ms vs 13 ms
  • 2 more HDMI 2.1 ports ?4 vs 2
Scroll down for more details

Key real-world differences

The spec sheet pulls in both directions. These are the gaps big enough to shape the decision — with the actual figures, and what each one means in real-world use.

  1. HDR formatsPicture
    HDR10, HDR10+, HLG vs Dolby Vision — advantage Samsung S90H OLED

    Support for more HDR formats means better contrast in more content.

  2. Peak brightnessPicture
    1,500 nits vs 2,600 nits — 42% more for the TCL QM7K

    Higher brightness makes HDR highlights pop.

  3. Speaker powerAudio
    40 W vs 60 W — 33% more for the TCL QM7K

    Higher total speaker power fills larger rooms.

  4. Input lagGaming
    9 ms vs 13 ms — 31% less for the Samsung S90H OLED

    Lower input lag feels more responsive when gaming.

  5. Chromecast built-inSmart features
    No vs Yes — only the TCL QM7K has it

    Cast content from phones and laptops without a dongle.

Which one should you buy?

There is no single answer — it depends on what you will actually use it for. Match your priority to the pick below.

  • Best for picture Samsung S90H OLED takes the category 80 to 65 — driven by HDR formats (HDR10, HDR10+, HLG vs Dolby Vision).
  • Best for gaming Samsung S90H OLED takes the category 100 to 78 — driven by input lag (9 ms vs 13 ms).
  • Best for connectivity Samsung S90H OLED takes the category 86 to 77.
  • Best for audio TCL QM7K takes the category 100 to 50 — driven by speaker power (40 W vs 60 W).
  • Best for smart features TCL QM7K takes the category 100 to 73 — driven by Chromecast built-in (No vs Yes).
  • The safe all-rounder Samsung S90H OLED wins more of the categories that carry real weight, topping the overall VS Score at 82.

Where each one falls short

Samsung S90H OLED

  • Peak brightness: 1,500 nits vs 2,600 nits
  • Speaker power: 40 W vs 60 W
  • Chromecast built-in: No vs Yes
  • 1 spec is unreported (shown as Unknown) and excluded from its scores.

TCL QM7K

  • HDR formats: HDR10, HDR10+, HLG vs Dolby Vision
  • Input lag: 9 ms vs 13 ms
  • HDMI 2.1 ports: 4 vs 2

What matters to you?

Drag the sliders to weight each category and re-rank the products to suit your priorities.

Picture
Gaming
Audio
Smart features
Connectivity
Your ranking
Samsung S90H OLEDYour pick83
TCL QM7KYour pick76

Score breakdown

Picture
Samsung S90H OLED80
TCL QM7K65
Decided by HDR formats (HDR10, HDR10+, HLG vs Dolby Vision) and peak brightness (1,500 nits vs 2,600 nits).
Gaming
Samsung S90H OLED100
TCL QM7K78
Decided by input lag (9 ms vs 13 ms).
Audio
Samsung S90H OLED50
TCL QM7K100
Decided by speaker power (40 W vs 60 W).
Smart features
Samsung S90H OLED73
TCL QM7K100
Decided by Chromecast built-in (No vs Yes).
Connectivity
Samsung S90H OLED86
TCL QM7K77
Decided by Wi-Fi standard (Wi-Fi 5 vs Wi-Fi 6) and HDMI 2.1 ports (4 vs 2).

How the VS Score works — and what it can’t tell you

Every measurable spec is scored relative to this matchup: the best value here earns 100%, the worst 0%, and everything between scales linearly. Each spec then counts according to an editorial weight that reflects real-world impact — a battery-capacity gap moves the score far more than a colour-options list. The category scores above are the weighted results inside each group, and the overall VS Score rolls all of them together; the evidence line under each category names the specs that actually decided it.

Unknown values are never estimated. A spec a product doesn’t report simply drops out of that product’s scoring — it isn’t penalised with a guess — and a spec only one side reports can never produce a “win”. The trade-off is honest but real: a thinner spec sheet means a score built on fewer data points, which is why the completeness figures are disclosed under About this data.

Most importantly: a spec-sheet lead is not the same as a better product. Megapixels, gigahertz and benchmark points describe capacity, not experience — image processing, software optimisation, thermals, haptics and ergonomics decide how a device actually feels, and no table captures reliability or long-term support quality. Treat the scores as a structured summary of what can be measured, read the caveats under each key difference, and use the weight tuner to re-rank the comparison by what matters to you.

Picture

Screen size ?
65 "
65 "

A larger screen is more immersive.

Resolution ?
2,160 px
2,160 px

The vertical pixel count; higher is sharper (4K, 8K).

Panel type ?
OLED
LCD

The panel technology (e.g. OLED, QLED, Mini-LED).

Refresh rate ?
165 Hz
144 Hz

A higher refresh rate is smoother for sport and gaming.

Peak brightness ?
1,500 nits
2,600 nits

Higher brightness makes HDR highlights pop.

Local dimming zones ?
? Unknown (Samsung S90H OLED)
2,500

More dimming zones improve contrast and black levels.

DCI-P3 coverage ?
98 %
96 %

Wider DCI-P3 gamut coverage means more vivid, accurate HDR colour.

HDR formats ?
Samsung S90H OLEDHDR10HDR10+HLG
TCL QM7KDolby Vision

Support for more HDR formats means better contrast in more content.

Gaming

HDMI 2.1 ?
Samsung S90H OLED
TCL QM7K

Carries 4K/120Hz and the latest gaming features.

Variable refresh rate (VRR) ?
Samsung S90H OLED
TCL QM7K

Syncs the display to the game for tear-free motion.

Auto low-latency (ALLM) ?
Samsung S90H OLED
TCL QM7K

Switches to game mode automatically.

4K 120Hz support ?
Samsung S90H OLED
TCL QM7K

Drives 4K at 120Hz for the smoothest console and PC gaming.

FreeSync ?
Samsung S90H OLED
TCL QM7K

AMD FreeSync variable refresh rate for tear-free PC and console play.

Input lag ?
9 ms
13 ms

Lower input lag feels more responsive when gaming.

Audio

Speaker power ?
40 W
60 W

Higher total speaker power fills larger rooms.

Dolby Atmos ?
Samsung S90H OLED
TCL QM7K

Adds spatial, three-dimensional audio in supported content.

eARC ?
Samsung S90H OLED
TCL QM7K

Passes lossless audio to a soundbar or receiver over HDMI.

Smart features

Operating system ?
Tizen
Google TV

The smart-TV platform (e.g. Google TV, webOS).

Voice assistant ?
Samsung S90H OLED
TCL QM7K

Control the TV and search by voice.

AirPlay ?
Samsung S90H OLED
TCL QM7K

Stream from Apple devices to the TV.

Chromecast built-in ?
Samsung S90H OLED
TCL QM7K

Cast content from phones and laptops without a dongle.

VESA mount ?
400 x 300 mm
400 x 200 mm

The VESA wall-mount hole pattern (e.g. 300 x 300 mm).

Connectivity

HDMI ports ?
4
4

More HDMI ports connect more devices.

HDMI 2.1 ports ?
4
2

More full-bandwidth HDMI 2.1 ports connect more 4K/120Hz sources.

USB ports ?
2
2

USB ports for media playback and accessories.

Wi-Fi standard ?
Wi-Fi 5
Wi-Fi 6

The Wi-Fi generation supported; later is faster.

Bluetooth ?
Samsung S90H OLED
TCL QM7K

Pair wireless headphones or speakers.

Ethernet ?
Samsung S90H OLED
TCL QM7K

A wired network port for stable streaming.

About this data

  • Specifications are compiled from each manufacturer’s official spec sheet, cross-checked against trusted specification databases, and normalised into one schema so identical things are compared identically.
  • Specifications last verified July 6, 2026.
  • Data completeness: Samsung S90H OLED 96% and TCL QM7K 100% of the 28 specs in this category. Anything we could not verify is shown as Unknown — never estimated — and is excluded from all scores.
  • Prices and availability come from live retailer feeds via our shopping partners and refresh throughout the day; a missing price means no partner currently lists the product, not that it is discontinued.
  • Want the full picture? Our editorial guidelines explain how we research products, weight the scores and stay independent.
  • Spotted an error in a spec? Tell us and we will correct the sheet.

Where to buy

Prices and availability may change. Check the retailer before buying. We may earn a commission on purchases.

What reviewers say

The bottom line

The Samsung S90H OLED comes out ahead, scoring 82 to 75 on our VS Score. It leads on Picture, Gaming and Connectivity. The TCL QM7K answers back with stronger Audio and Smart features. Pick the Samsung S90H OLED unless Audio and Smart features matters most to you — then the TCL QM7K is the smarter buy.

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