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LG OLED65C5* vs Samsung QN65S90FAF

Two of the oled tvs in our best oled tvs comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.

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#29 of 78 in OLED TVs

LG OLED65C5*

7.1/10

Best for: 64.50 in official diagonal, 8.39 W/100 sq in computed on-mode power density, 8.29 megapixels computed resolution, 0.40 W official measured standby, 275.00 kWh/year official annual energy

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#57 of 78 in OLED TVs

Samsung QN65S90FAF

6.5/10

Best for: 64.50 in official diagonal, 7.40 W/100 sq in computed on-mode power density, 8.29 megapixels computed resolution, 0.90 W official measured standby, 246.40 kWh/year official annual energy

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Spec-by-spec comparison

Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.

SpecLG OLED65C5*Samsung QN65S90FAFWeight
Official diagonal viewable screen sizeThe official diagonal viewable screen size on the ENERGY STAR certified record, in inches. A missing or internally inconsistent official size is shown as Not listed and scores at the category minimum. 64.5 in 64.5 in 25%
Computed on-mode power per 100 sq inOfficial reported on-mode power (federal test procedure) divided by official screen area, times 100, labelled computed. Lower is more efficient for a given official area. If official area is implausible, the value is Not listed and scores at the category minimum. 8.39 W/100 sq in 7.4 W/100 sq in 35%
Computed native resolutionOfficial native horizontal pixels times official native vertical pixels, divided by one million and labelled computed. A missing official resolution is shown as Not listed and scores at the category minimum. 8.29 MP 8.29 MP 25%
Official measured standby-mode powerThe official measured standby-mode power on the ENERGY STAR record, in watts. A missing value is shown as Not listed and scores at the category minimum. Other official standby fields are printed as details and are not mixed into this score. 0.4 W 0.9 W 15%
Official ENERGY STAR product typeTelevision (TV)Television (TV)info
Official applicationConsumerConsumerinfo
Official display typeOLEDOLEDinfo
Official backlight technology typeOLEDOLEDinfo
Official certified model numberOLED65C5***QN65S90FAFinfo
Official model nameOLED65C5***QN65S90FAFinfo
Official diagonal viewable screen size64.50 in64.50 ininfo
Official screen area1,775.9 sq in1,779.1 sq ininfo
Official native resolution3840 × 2160 pixels3840 × 2160 pixelsinfo
Official resolution format4K (UHD)4K (UHD)info
Computed native resolution8.29 megapixels (official horizontal pixels × official vertical pixels, labelled computed)8.29 megapixels (official horizontal pixels × official vertical pixels, labelled computed)info
Official high contrast ratio (HCR) displayYesYesinfo
Official automatic brightness controlYesYesinfo
Official ABC enabled by default in the default SDR presetNoNoinfo
Official reported on-mode power (federal test procedure)149 W131.59 Winfo
Official average on-mode power for certificationNot listed131.59 Winfo
Official maximum average on-mode power for certificationNot listed165.14 Winfo
Computed on-mode power per 100 sq in8.39 W/100 sq in (official federal on-mode power ÷ official screen area × 100, labelled computed)7.40 W/100 sq in (official federal on-mode power ÷ official screen area × 100, labelled computed)info
Official reported annual energy consumption275.00 kWh/year246.40 kWh/yearinfo
Official measured standby-mode power0.40 W0.90 Winfo
Official standby power when not connected to a networkNot listedNot listedinfo
Official standby power when connected to a networkNot listedNot listedinfo
Official reported standby-active, low mode powerNot listedNot listedinfo
Official physical data portsUniversal Serial Bus (USB),Other,RS-232,HDMIUniversal Serial Bus (USB),Other,RS-232,HDMIinfo
Official ethernet supportFast Ethernet (100 Mbit/s)Fast Ethernet (100 Mbit/s)info
Official low-power wireless technologiesBluetoothBluetoothinfo
Official featuresQuick Start,Wake-On-Cast Compatibility,Control Via Remote Control App,Control Via Smart Speaker,Motion-based Dynamic Dimming (MDD) (also known as Motion Eye Care),Wide Color Gamut,Automatic Brightness Control,User Adjustable BacklightQuick Start,Wake-On-Cast Compatibility,Control Via Remote Control App,Control Via Smart Speaker,Upconversion,Motion-based Dynamic Dimming (MDD) (also known as Motion Eye Care),Automatic Brightness Control,User Adjustable Backlightinfo
Official marketsUnited StatesUnited Statesinfo
Official date available on market2025-04-042025-02-10info
Official date certified2024-11-182025-01-31info
Official UPC195174102688;195174106105Not listedinfo
Related official recordsNot listedNot listedinfo
Peak brightness (nits)Not listedNot listedinfo
Refresh rateNot listedNot listedinfo
Smart operating systemNot listedNot listedinfo
ScreenPick score7.1/106.5/10100%

Where each one comes out ahead

LG OLED65C5*

Better published figure on: Official measured standby-mode power.

What we like

  • Official diagonal viewable screen size is 64.50 in
  • Computed native resolution is 8.29 megapixels
  • Official measured standby-mode power is 0.40 W
  • Official display type is OLED

Watch out for

  • Computed on-mode power density is 8.39 W/100 sq in, at the high end of this set

Samsung QN65S90FAF

Better published figure on: Computed on-mode power per 100 sq in.

What we like

  • Official diagonal viewable screen size is 64.50 in
  • Computed native resolution is 8.29 megapixels
  • Official display type is OLED

Watch out for

  • Official measured standby-mode power is 0.90 W, at the high end of this set

Verdict

Both official ENERGY STAR records list these models as OLED televisions. The LG OLED65C5* record lists 64.50 in official diagonal, 8.39 W/100 sq in computed on-mode power density, 8.29 megapixels computed resolution and 0.40 W official measured standby-mode power. Official reported annual energy is 275.00 kWh/year. The Samsung QN65S90FAF record lists 64.50 in official diagonal, 7.40 W/100 sq in computed on-mode power density, 8.29 megapixels computed resolution and 0.90 W official measured standby-mode power. Official reported annual energy is 246.40 kWh/year.

LG OLED65C5* on AmazonSamsung QN65S90FAF on Amazon
Spec sources

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