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 (4.5 vs 4.2). Samsung S90D 65-inch (QN65S90D) is best for: 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)
2 sources$1,149as of Aug 16

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
  • — All four HDMI ports are HDMI 2.1, with native 120Hz and a firmware-enabled 144Hz mode on HDMI 4 for PC use
  • — Tizen smart OS is fast and responsive, with deeper game-streaming integration than Google TV
  • — Frequently discounted below $1,500 — the cheapest premium OLED experience on the market
Watch-outs
  • — Samsung still refuses to support Dolby Vision — disc players and streaming services fall back to HDR10+
TCL 65QM7K QD-Mini-LED 65-inch
Ranked #4 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
  • — 144Hz native refresh, ALLM and VRR, Game Accelerator 288 mode — strong gaming feature set at the price
  • — Anti-reflective screen coating handles bright living-room ambient light better than the Hisense U7N
Watch-outs
  • — Only 2 of 4 HDMI ports are HDMI 2.1 — trails the LG OLED G4 and Samsung QN65S90D

How they stack up

Samsung S90D 65-inch (QN65S90D)

The Samsung S90D 65-inch costs less than the LG OLED evo G4 65-inch and does without Dolby Vision, which the LG supports. Its QD-OLED panel renders saturated colors more vividly than the LG on certain content. Against the TCL 65QM7K it has four HDMI 2.1 ports to the TCL's two, while the TCL peaks around 2,600 nits against the Samsung's roughly 1,300.

TCL 65QM7K QD-Mini-LED 65-inch

The TCL 65QM7K QD-Mini-LED 65-inch costs less than the LG OLED evo G4 65-inch and the Samsung S90D 65-inch, and its roughly 2,600-nit peak is about twice the Samsung's roughly 1,300 nits, which suits bright rooms. It has two HDMI 2.1 ports where both OLEDs have four. Unlike the TCL 43Q651G, it has local dimming, and it runs at 144 Hz against that set's 60 Hz.

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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