Verdict
Head-to-head · Best 4K TVs

Samsung S90D 65-inch (QN65S90D) vs TCL 65QM7K QD-Mini-LED 65-inch

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Samsung S90D 65-inch (QN65S90D) comes out ahead by a clear margin (4.4 vs 4.1). The gap is mostly about Buyers who want the OLED picture-quality leap at the lowest possible price, in a controlled-light room, and who don't watch Dolby Vision content from disc. — read the strengths below before deciding.

Samsung S90D 65-inch (QN65S90D)
Higher ratedRanked #2 in Best 4K TVs
Samsung S90D 65-inch (QN65S90D)
3 sources1 derived$1,014.94as of Jul 31

Samsung's mid-tier QD-OLED is the value play for buyers who want OLED picture quality without paying flagship money. On certain content the QD-OLED panel renders saturated colors more vividly than the LG G4 does, and street pricing under $1,500 makes it the cheapest entry to true premium picture quality.

Strengths
  • Third-generation QD-OLED panel delivers wider color volume than competing WOLEDs, especially on saturated reds and greens
  • Roughly 1,300 nits peak HDR brightness on a 10% window — the brightest QD-OLED Samsung has shipped
  • All four HDMI ports are HDMI 2.1, with native 120Hz and a firmware-enabled 144Hz mode on HDMI 4 for PC use
Watch-outs
  • Samsung still refuses to support Dolby Vision — disc players and streaming services fall back to HDR10+
  • Standard matte coating (not the nano-textured S95D coating) shows brighter room reflections
  • Tizen home screen is ad-heavy and difficult to fully suppress
TCL 65QM7K QD-Mini-LED 65-inch
Ranked #3 in Best 4K TVs
TCL 65QM7K QD-Mini-LED 65-inch
3 sources$749.99as of Jul 3

TCL's 2025 mid-range QD-mini-LED is the price-performance king of this guide. Measured peak HDR brightness lands in the same neighborhood as premium mini-LEDs at well under half the price, helped by a meaningfully upgraded local dimming optical stack, and the Onkyo-tuned audio punches above its weight. You give up viewing angles to the VA panel, and the Google TV firmware still has rough edges.

Strengths
  • Peak HDR brightness around 2,600 nits on the 65-inch model — within striking distance of premium mini-LEDs costing three times as much
  • LD2500 Precise Dimming with the new Halo Control optical stack noticeably reduces blooming compared to the QM7 predecessor
  • 144Hz native refresh, ALLM and VRR, Game Accelerator 288 mode — strong gaming feature set at the price
Watch-outs
  • Off-axis viewing on the VA panel falls off harder than the IPS-based competition
  • Google TV implementation occasionally drops Dolby Vision passthrough until the TV is rebooted
  • Only 2 of 4 HDMI ports are HDMI 2.1 — trails the LG OLED G4 and Samsung QN65S90D

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

Samsung S90D 65-inch (QN65S90D)

Costs roughly $700 less than the LG OLED G4 at street, with comparable peak HDR brightness on smaller windows but without Dolby Vision support. Versus the TCL 65QM7K it is a different category — true OLED black levels at a price closer to flagship mini-LED than to flagship OLED. Against the Hisense 65U7N the Samsung is double the price but the per-pixel contrast and color volume justify the gap for serious movie watching.

TCL 65QM7K QD-Mini-LED 65-inch

Against the Hisense 65U7N at a similar price point the TCL adds the Halo Control optical stack, a higher refresh rate, and anti-reflective coating; the Hisense counters with marginally lower street pricing. Versus the LG OLED G4 the trade is OLED black levels for double the brightness at half the price. Compared to the Samsung QN65S90D the TCL gives up OLED per-pixel contrast for substantially more peak brightness — better for bright rooms.

Specs side-by-side

SpecSamsung S90D 65-inch (QN65S90D)TCL 65QM7K QD-Mini-LED 65-inch
Screen Size65 in65 in
Resolution4K UHD (3840x2160)4K UHD (3840x2160)
Panel TypeQD-OLED (3rd-gen)QD-Mini-LED (HVA)
HDR FormatsHDR10+, HDR10, HLG (no Dolby Vision)Dolby Vision, HDR10+, HDR10, HLG
Refresh Rate144 Hz (HDMI 4 only)144 Hz (Game Accelerator 288 mode)
HDMI Ports4 (all HDMI 2.1, 48 Gbps)4 (2 with HDMI 2.1)
Smart OSTizenGoogle TV
Audio40W 2.1-ch Object Tracking Sound Lite40W 2.1-ch Onkyo Dolby Atmos
Voice AssistantBixby, AlexaGoogle Assistant, Alexa
Warranty1-year limited1-year limited
Dimensions10.4"D x 56.9"W x 35.3"H2.2"D x 56.8"W x 34.2"H
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