Model
Samsung QN65S90DAF
Rank #123 means 122 of the 172 television models we track cost less to run each year; the 19th efficiency percentile means it uses less energy for its size than 19% of those models.
What does the Samsung QN65S90DAF cost to run per year?
The Samsung QN65S90DAF is a relatively costly runner for its class: about $47 a year, rank #123 of 172. Its 19th size-adjusted efficiency percentile is well below the class median, worth weighing against the raw cost figure above. At 134.53 W in on-mode, its power draw is a direct input into that running-cost figure.
Immediately around it on the leaderboard, the Lg OLED65G5*** at $47/yr runs a little cheaper and the Lg 75QNED90TU* at $48/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 QN65S90DAF's $47/yr adds up to roughly $329 in electricity alone, before purchase price or repairs.
Also sold as: Lg OLED65G5***.
By the numbers
The Samsung QN65S90DAF 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 $47/yr, here is what the Samsung QN65S90DAF 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 QN65S90DAF costs about $470. That is roughly $120 more than the class median, which would run closer to $350 over the same ten years.
How the Samsung QN65S90DAF compares
The television class we track runs from $3 to $117 a year. At $47/yr, it runs about $12 a year above the class median of $35, and it is about $44 a year more than the cheapest television to run at $3.
What drives its running cost
At 64.5 in, the Samsung QN65S90DAF is a mid-size television for its class, which spans 13.23 to 114.4 in with a median of 55 in, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class. Its on-mode power draw of 134.53 W (the class spans 9.3 to 343.5 W) is the direct input into the running-cost figure, and the picture-brightness setting you choose is the single biggest lever you control over it day to day.
- 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 QN65S90DAF cheap to run?
Not especially. At $47 a year it ranks #123 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 QN65S90DAF cost per month?
Roughly $3.88/mo, spreading the $47/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 251 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $47 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Samsung QN65S90DAF for its size?
19th 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 |
|---|---|---|
| 123 | Lg OLED65G5***64.5 in | $47 |
| 122 | Lg OLED77C6HU*76.7 in | $46 |
| 121 | Samsung QN65S90FAF64.5 in | $46 |
| 120 | Samsung QN55S95DAF54.6 in | $46 |
| 119 | Lg OLED65C4PU*64.5 in | $45 |
Source
ES_1023593_QN65S90DAF_121720230605698_3315653View certified television listingsENERGY STAR data as of July 2026Samsung and QN65S90DAF 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.