Model
Samsung QN85QN90FAF
Rank #159 means 158 of the 172 television models we track cost less to run each year; the 15th efficiency percentile means it uses less energy for its size than 15% of those models.
What does the Samsung QN85QN90FAF cost to run per year?
At $64 a year to run, the Samsung QN85QN90FAF is among the more expensive television models we track to run, ranking #159 of 172. Its 15th size-adjusted efficiency percentile is well below the class median, worth weighing against the raw cost figure above. At 186.31 W in on-mode, its power draw is a direct input into that running-cost figure.
Immediately around it on the leaderboard, the Lg OLED77C5*** at $64/yr runs a little cheaper and the Sansui. LE-85TE1 at $64/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 QN85QN90FAF's $64/yr adds up to roughly $448 in electricity alone, before purchase price or repairs.
By the numbers
The Samsung QN85QN90FAF 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 $64/yr, here is what the Samsung QN85QN90FAF 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 QN85QN90FAF costs about $640. That is roughly $290 more than the class median, which would run closer to $350 over the same ten years.
How the Samsung QN85QN90FAF compares
The television class we track runs from $3 to $117 a year. At $64/yr, it runs about $29 a year above the class median of $35, and it is about $61 a year more than the cheapest television to run at $3.
What drives its running cost
At 84.5 in, the Samsung QN85QN90FAF is a large television for its class, which spans 13.23 to 114.4 in with a median of 55 in, among television models, bigger capacity is the most common reason a running-cost figure lands on the high side, all else being equal. 186.31 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 QN85QN90FAF cheap to run?
Not especially. At $64 a year it ranks #159 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 QN85QN90FAF cost per month?
Roughly $5.33/mo, spreading the $64/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 345 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $64 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Samsung QN85QN90FAF for its size?
15th 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 |
|---|---|---|
| 158 | Lg OLED77C5***76.7 in | $64 |
| 157 | Lg OLED77B5***76.7 in | $64 |
| 156 | Lg 86QNED90TU*85.6 in | $63 |
| 155 | Lg OLED83B5PU*82.5 in | $61 |
| 154 | Samsung QN75QN95DAF74.6 in | $60 |
Source
ES_1023593_QN85QN90FAF_012220250945231_2518761View certified television listingsENERGY STAR data as of July 2026Samsung and QN85QN90FAF 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.