Which has the better picture, the QM8K or the QM6K?

The QM8K. It has higher brightness, up to 3800 dimming zones and an anti-reflective panel, and CNET rated its picture 8.7. The QM6K is good for the price but sits a tier below.

Is the QM8K worth about $500 more than the 75-inch QM6K?

If you watch a lot of HDR in a bright room or care about black-level depth, yes. For casual viewing and gaming, the QM6K at $798.00 covers most of the same features.

Which is better for gaming?

Both run a 144Hz native panel with VRR and a game accelerator mode, so gaming is close. The QM8K adds more brightness and dimming zones, which helps HDR games.

Does the QM6K come in sizes other than 75 inches?

Yes. It is listed in 55, 75 and 85 inches. The QM8K's size range is not specified in the given specs.

Which has better built-in sound?

The QM6K. It has Onkyo 2.1 audio with a subwoofer at 40W. The QM8K uses Bang & Olufsen tuning but reviewers call its sound weak, so a soundbar helps either way.

TCL QM8K QD-Mini LED TV vs TCL QM6K QD-Mini LED 4K Smart TV

Both are TCL QD-Mini LED 4K TVs, but they sit in different tiers. The QM8K is the brighter, higher-zone flagship with the better picture; the 75-inch QM6K costs far less and still covers 144Hz gaming and Dolby Vision IQ. As of November 6, 2026, the QM8K's best new price is $1,299.99 at Queen City Homestore, while the 75-inch QM6K is $798.00 at Walmart.

Today the TCL QM6K QD-Mini LED 4K Smart TV costs $500.00 less at its best price.

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