TV Comparisons · 8 min read
TCL QM8 vs QM7: Which Mini-LED TV Is the Better Buy?
Compare the TCL QM8 (QM851G) and QM7 (QM751G) with official US specifications and published reviews. See the real price gap, flagship versus midrange Mini-LED differences, and which 65-inch TV fits your room.
Updated Oct 20, 2026
Research date Oct 20, 2026
Quick Verdict
QM8 is the starting point when picture quality decides the purchase. It moves from QM7's Mini-LED backlight to a flagship-grade one: roughly double the dimming zones TCL quotes and up to 5,000 nits of stated peak brightness against QM7's 2,400. RTINGS' lab measurements confirm the gap: 3,467 nits at a 10% window on the tested 65-inch QM8, excellent contrast with minimal blooming, and a faster, more precise local-dimming solution. The trade-off is price.
QM7 is the value pick at its current official price. TCL's US store lists the 65-inch 65QM751G at $679.99 — shown as a 55%-off sale against a $1,499.99 list price — which is $220 below the 65-inch 65QM851G at $899.99, also marked 55% off its $1,999.99 list price (both checked October 20, 2026). QM7 keeps the same Google TV platform, 4K at up to 144Hz gaming support and the full HDR format list, so the decision is whether the QM8 picture upgrade is worth the gap in your room.
Current Verified Prices
TCL's own US store listed these prices on October 20, 2026: 65QM851G (QM8) at $899.99, displayed as a sale at 55% off the $1,999.99 list price; 65QM751G (QM7) at $679.99, displayed as a sale at 55% off the $1,499.99 list price. Compare the same screen size, seller, delivery service and return terms, and re-check the listing before buying — both sale prices are temporary by nature and can change or sell through. Note: TCL's newer us.tcl.com store URL for the 65QM751G currently returns a 404 page; the price above comes from TCL's tcl.com product page, which still lists and prices the model. Price cards and purchase links appear in the module below only when the exact US model and a current offer are confirmed through the verified-offer pipeline.
RecentProfit may earn a commission from qualifying purchases. Read our affiliate disclosure. This guide combines official documents with published reviews; RecentProfit has not performed a hardware test of these TVs.
Exact Models and Official Specifications
This comparison covers the US QM8 series (QM851G) and the US QM7 series (QM751G), with 65QM851G and 65QM751G as the installation examples. QM8 is TCL's 2024 flagship Mini-LED line; QM7 is the 2024 midrange Mini-LED line. Neither is the 2025 QM7K/QM8K lineup — those are separate models covered in the TCL QM8K vs QM7K guide. A "QM8" without the 851G suffix, or a QM850G from 2023, is a different TV. Match the full model suffix and screen size before comparing a listing. The figures below come from TCL's official 65QM851G page and official 65QM751G page, checked October 20, 2026.
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| Official specification | 65QM851G (QM8) | 65QM751G (QM7) | What changes the decision |
|---|---|---|---|
| Backlight | QD-Mini LED ULTRA | QD-Mini LED | ULTRA is the flagship backlight tier: the core picture upgrade over QM7's already capable Mini-LED system. |
| Local dimming | Up to 5,000 local dimming zones (series-level figure stated by TCL); RTINGS measured 2,880 zones on the 65-inch variant | Up to 1,500+ local dimming zones (series-level figure stated by TCL) | More zones mean finer control of bright and dark areas; RTINGS found QM8's dimming solution noticeably faster and more precise than the newer QM7K's. |
| Peak brightness (TCL stated) | Up to 5,000 nits | Up to 2,400 nits | Roughly twice the stated headroom for HDR highlights; RTINGS measured 3,467 nits at a 10% window on the 65-inch QM8. |
| Panel refresh rate | 120Hz panel, up to 144Hz VRR | 120Hz panel, up to 144Hz VRR | Gaming refresh specifications match; the difference is picture processing, not refresh. |
| Game Accelerator | Up to 240 VRR | Up to 240 VRR | No gaming-refresh advantage either way at the headline level. |
| HDR formats | HDR ULTRA: Dolby Vision IQ, HDR10+, HDR10, HLG | HDR ULTRA: Dolby Vision IQ, HDR10+, HDR10, HLG | Identical format lists — format support should not decide the purchase. |
| Processor | TCL AIPQ ULTRA Processor with Deep Learning AI | TCL AIPQ PRO Processor with Deep Learning AI | QM8's newer processor generation; the visible effect is in upscaling and tone mapping, not a headline spec. |
| Audio | ONKYO 2.1.2 speaker system, 80W (2 x 20W L/R + 20W subwoofer + 2 x 10W up-firing) | ONKYO 2.1 speaker system, 50W (2 x 15W + 20W) | QM8 adds up-firing speakers and more power; owners still praise QM7's built-in subwoofer, but a soundbar improves either TV. |
| Smart platform / Wi-Fi | Google TV / Wi-Fi 6 (802.11ax) | Google TV / Wi-Fi 5 (802.11ac) | Same platform family; QM8's newer Wi-Fi standard matters only on fast home networks. |
| Warranty | 1-year limited warranty | 1-year limited warranty | Same coverage window. |
On the price presentation: the QM8 page shows "$1,999.99" and "$899.99" together with a "55%" "off" label and a "Sale" badge. The QM7 page shows "$1,499.99" and "$679.99" with the same 55%-off sale presentation. Neither page lists an end date for its sale price, so treat both as temporary when comparing.
Pros and Cons from Published Reviews
The observations below come from RTINGS lab measurements as reported by Notebookcheck and from RTINGS' side-by-side comparison tools, plus hands-on reviews and owner feedback. They describe tested samples, not guaranteed results for every screen size or unit.
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| Trade-off | QM8 (QM851G) | QM7 (QM751G) |
|---|---|---|
| Pro 1: HDR brightness | RTINGS measured a dazzling 3,467 nits at a 10% window on the 65-inch variant, per Notebookcheck's summary of the review. | RTINGS found superb HDR and SDR brightness, per Notebookcheck's summary; TCL states up to 2,400 nits peak. |
| Pro 2: contrast and dimming | 2,880 local dimming zones measured on the 65-inch variant; excellent contrast with minimal blooming. RTINGS' comparison tool calls QM8's dimming solution noticeably faster and more precise than the newer QM7K's, with better overall black levels. | Excellent native contrast (5,651:1) rising to 135,500:1 with local dimming, per Notebookcheck's RTINGS summary; a hands-on reviewer found almost no blooming even around subtitles. |
| Pro 3: color | Great color accuracy out of the box, and RTINGS' comparison tool calls the QM8 the more colorful TV overall against the QM7K. | More than 90% DCI-P3 coverage with excellent color volume in SDR and HDR, per Notebookcheck's RTINGS summary. |
| Pro 4: gaming and sound | 144Hz with decent response times; RTINGS notes faster response time, lower input lag, and local dimming that stays enabled with VRR — a strong gaming set. | 144Hz native with FreeSync, low input lag and good response time; Best Buy owners praise the built-in ONKYO subwoofer, making a soundbar optional for casual use. |
| Con 1: viewing angles | The VA panel allows for poor viewing angles — a major disappointment for group viewing, per Notebookcheck's RTINGS summary. | Viewing angles remain merely passable on the VA panel; not the pick for wide seating, per Notebookcheck's RTINGS summary. |
| Con 2: picture accuracy | HDR brightness accuracy is quite poor versus the newer QM7K, and PQ EOTF tracking trails the older QM850G — the QM8 prioritizes punch over creator intent, per RTINGS' comparison tools. | Not accurate out of the box; RTINGS notes users need manual calibration if they value color accuracy. |
| Con 3: processing and reflections | Image processing is not as sophisticated as Sony or Samsung sets at similar or higher prices, per Notebookcheck. | Poor reflection handling — RTINGS notes the TV reflects a lot of light from direct sources, so it is not ideal for brightly lit rooms. |
The Price Gap Is the Real Story
QM8 is TCL's 2024 flagship and TCL's US store is pricing it like a discounted flagship: $899.99 for the 65-inch, 55% off list. QM7 is the midrange Mini-LED step-down at $679.99, also on a 55%-off sale. That $220 gap on TCL's own store is the entire decision for most buyers — the QM8 picture upgrades are real and measured, but they are an upgrade you pay for, not a free step up.
Watch the gap, not just the absolute prices. Retailer sales move both models independently, and neither sale price has a published end date. If a retailer discounts one model further or a sale ends, re-run the comparison at the new numbers before deciding.
Bright Rooms and HDR: Where QM8 Earns Its Premium
QM8's advantages concentrate in HDR impact and dark-room control: measured brightness far beyond QM7's already strong output, more than twice the dimming zones TCL quotes, and a dimming solution RTINGS calls faster and more precise than even the newer QM7K's. QM7 remains a bright TV by midrange standards — its SDR brightness is strong enough for daytime viewing — but it cannot match QM8's highlight punch in HDR movies.
QM7's reflection handling is a weak point in reviews, so a bright room with windows directly opposite the screen will challenge it more than the numbers suggest. Check your actual window and lamp positions; light control can matter as much as the brightness specification.
Gaming: Both Cover the Essentials
TCL's spec pages give both TVs the same gaming headline: a 120Hz panel with up to 144Hz VRR, Game Accelerator 240, Auto Game Mode (ALLM) and AMD FreeSync Premium Pro. Reviews report low input lag on both, with QM8 reviews additionally noting that local dimming stays enabled with VRR — a detail gamers notice in dark HDR scenes.
Because the gaming specifications match, do not choose between these two TVs on gaming features. Choose on price and picture, then connect the same console or PC to either one.
Sound and Viewing Angles: Shared Weaknesses
Both TVs use VA panels, so both lose picture quality at wide viewing angles, and both benefit from user calibration out of the box. QM8's ONKYO 2.1.2 system with up-firing speakers is a genuine small edge — 80W against QM7's 50W — and QM7 owners praise its built-in subwoofer, but neither TV replaces a soundbar if audio matters to you.
Which Should You Buy?
- Picture-first upgrade below OLED prices: QM8 — measured brightness, more dimming zones and faster local dimming are the visible upgrades over QM7.
- Best value at today's official prices: QM7 — $679.99 at TCL's US store buys Mini-LED dimming and strong HDR for $220 less.
- Bright living room: lean QM8 for HDR impact and better reflection behavior, but check window reflections first.
- Wide seating: neither is ideal; consider an OLED alternative rather than expecting either VA panel to fix off-angle viewing.
- Gaming setup: both qualify equally; decide on price and picture instead.
- Chasing the newest technology: neither — the 2025 QM7K/QM8K are TCL's current lineup; see the QM8K vs QM7K guide.
See TCL's current offers and buying terms for the brand's offer context, and TCL Black Friday information for seasonal updates. Match the actual seller's terms to the listing you choose.
Sources and Verification
- TCL 65QM851G official product page — model identity, specifications, US list and sale price; checked October 20, 2026.
- TCL 65QM751G official product page — model identity, specifications, US list and sale price; checked October 20, 2026. TCL's newer us.tcl.com store URL for this model currently returns a 404 page.
- RTINGS QM851G review via Notebookcheck's RTINGS summary — 2,880 dimming zones and 3,467-nit peak measured on the 65-inch variant, contrast, color accuracy, viewing angles; checked October 20, 2026.
- RTINGS QM851G vs QM7K comparison and QM851G vs QM850G comparison — dimming precision, color, HDR accuracy and EOTF tracking observations; checked October 20, 2026.
- Notebookcheck QM7 report — RTINGS measurements for brightness, contrast, color, viewing angles, calibration and reflection handling; checked October 20, 2026.
- ResourcefulMan QM7 hands-on review — real-world contrast and blooming observations; checked October 19, 2026.
- Best Buy QM7 customer reviews — owner feedback on sound quality; checked October 19, 2026.
FAQ
Is the TCL QM8 worth paying more than the QM7?
For HDR picture quality, yes: QM8's flagship Mini-LED backlight delivers more dimming zones and far higher measured brightness, with faster local dimming and minimal blooming. For everyday viewing, the QM7 at $679.99 is the better value. Re-check both listings, since the $220 gap changes with sales.
Which is better for gaming, the QM8 or the QM7?
Both. TCL's official pages list a 120Hz panel with up to 144Hz VRR, Game Accelerator 240, Auto Game Mode and AMD FreeSync Premium Pro on each. Reviews report low input lag on both; the QM8 additionally keeps local dimming enabled with VRR. Choose on price and picture, not gaming features.
Are the QM8 and QM7 TCL's latest models?
They are TCL's 2024 Mini-LED lineup: QM8 (QM851G) is the 2024 flagship, QM7 (QM751G) the 2024 midrange. TCL's 2025 US lineup is QM7K/QM8K — see the QM8K vs QM7K guide. Match the full model code before comparing any listing.
What is the difference between QM8 and QM8K?
They are different generations. QM8 is the 2024 QM851G series; QM8K is the 2025 series with different specifications. The same applies to QM7 (2024, QM751G) versus QM7K (2025).
Are either of these TVs discounted right now?
On October 20, 2026, TCL's US store showed the 65QM851G at $899.99 (55% off the $1,999.99 list price, marked Sale) and the 65QM751G at $679.99 (55% off the $1,499.99 list price, marked Sale). Sale pricing can end without notice, so verify the live listing.
Why does TCL's newer store page for the QM7 show a 404?
TCL's us.tcl.com product URL for the 65QM751G currently returns a 404 page, while the older tcl.com product page still lists the model at $679.99. Availability may be shifting as TCL updates its store; check the live listing and retailer stock before buying.