Model
Samsung QN65QN90DAF
Rank #131 means 130 of the 172 television models we track cost less to run each year; the 12th efficiency percentile means it uses less energy for its size than 12% of those models.
What does the Samsung QN65QN90DAF cost to run per year?
The Samsung QN65QN90DAF is a relatively costly runner for its class: about $49 a year, rank #131 of 172. Its 12th size-adjusted efficiency percentile is well below the class median, worth weighing against the raw cost figure above. At 121.96 W in on-mode, its power draw is a direct input into that running-cost figure.
Immediately around it on the leaderboard, the Lg 86QNED85AU* at $49/yr runs a little cheaper and the Samsung QN75QN90FAF at $50/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A television typically stays in service for somewhere around 7 years; over that span, the Samsung QN65QN90DAF's $49/yr adds up to roughly $343 in electricity alone, before purchase price or repairs.
By the numbers
The Samsung QN65QN90DAF normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $49/yr, here is what the Samsung QN65QN90DAF adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Samsung QN65QN90DAF costs about $490. That is roughly $140 more than the class median, which would run closer to $350 over the same ten years.
How the Samsung QN65QN90DAF compares
The television class we track runs from $3 to $117 a year. At $49/yr, it runs about $14 a year above the class median of $35, and it is about $46 a year more than the cheapest television to run at $3.
What drives its running cost
At 64.5 in, the Samsung QN65QN90DAF is a mid-size television for its class, which spans 13.23 to 114.4 in with a median of 55 in, neither the size advantage of a small unit nor the size penalty of a large one applies here, so its running cost is a fairer test of efficiency alone. 121.96 W is the on-mode draw behind this figure (the class spans 9.3 to 343.5 W); two otherwise similar TVs can differ here mostly on picture-mode defaults rather than panel technology.
- On-mode brightness. The picture mode you leave a TV on, vivid or eco, moves its real-world wattage more than almost anything else you control directly.
- Screen size. A bigger panel needs more backlight or more emissive pixels to reach the same brightness, so energy use climbs with diagonal screen size across most panel technologies.
- Hours of use. ENERGY STAR's on-mode wattage figure assumes a standard number of hours per day; a TV left on longer than that, or used as ambient background noise, accumulates more of that hourly cost.
Common questions
Is the Samsung QN65QN90DAF cheap to run?
Not especially. At $49 a year it ranks #131 of 172 television models we track, in the pricier part of its class to run, though its size and features may still justify that for your needs.
How much does the Samsung QN65QN90DAF cost per month?
Roughly $4.11/mo, spreading the $49/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 266 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $49 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Samsung QN65QN90DAF for its size?
12th percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 130 | Lg 86QNED85AU*85.6 in | $49 |
| 129 | Lg OLED77B4PU*76.7 in | $49 |
| 128 | Lg 86QNED82AU*85.6 in | $49 |
| 127 | Lg OLED65C6PU*64.5 in | $48 |
| 126 | Lg 75QNED85TU*74.5 in | $48 |
Source
ES_1023593_QN65QN90DAF_121220230809405_3064777View certified television listingsENERGY STAR data as of July 2026Samsung and QN65QN90DAF are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.