We may earn a commission if you buy something through the affiliate text links or affiliate image links on Seeking Tech.

QNED99 vs. QN900A: Which is the Better Gaming TV?

The QNED99 and QN900A are both 8K television sets that were released in 2021. So, which of these TVs is better when it comes to showing games that are running on the PC, PlayStation 5, Xbox Series X, Xbox Series S, Nintendo Switch and other systems?

You can find out in this comparison guide between these LG and Samsung 8K TVs.

Quick Summary

When compared to the LG QNED99, the Samsung QN900A comes with better contrasts, higher overall HDR brightness levels and lower input lag. Not to mention that the QN900A is the only one out of these TVs to support FreeSync, GSYNC and Variable Refresh Rate.

The only gaming advantage the QNED99 has over the QN900A is that the LG 8K television comes with Dolby Vision support.

You can purchase either of these TVs, if you are interested, from Amazon with the following links:

You can also take a look at our wall mount buyer’s guide for the QNED99 with this article and the QN900A with this link.

QNED99 vs. QN900A Comparison Chart

You can take a look at Seeking Tech’s comparison table for the QNED99 and QN900A below.

 LG QNED99Samsung Neo QLED QN900A
Screen Sizes65" (65QNED99UPA)

75" (75QNED99UPA)

86" (86QNED99UPA)
65" (QN65QN900AFXZA)

75" (QN75QN900AFXZA)

85" (QN85QN900AFXZA)
HDMI PortsHDMI Port #1: HDMI 2.1

HDMI Port #2: HDMI 2.1

HDMI Port #3: HDMI 2.1

HDMI Port #4: HDMI 2.1
HDMI Port #1: HDMI 2.1

HDMI Port #2: HDMI 2.1

HDMI Port #3: HDMI 2.1

HDMI Port #4: HDMI 2.1
Native Resolution8K8K
Native Refresh Rate120 Hz120 Hz
Legacy Consoles SupportAntenna/cable inputAntenna/cable input
HDR FeaturesDolby Vision

HDR10

HLG

Local Dimming

Wide Color Gamut
HDR10

HDR10+

HLG

Local Dimming

Wide Color Gamut
Native Contrast Ratio638 to 11,658 to 1
Local Dimming Contrast Ratio6,534 to 115,403 to 1
HDR Real Scene Highlight792 nits1,104 nits
HDR Peak 2% Window613 nits761 nits
HDR Peak 10% Window972 nits1,113 nits
HDR Peak 25% Window1,002 nits1,023 nits
HDR Peak 50% Window761 nits506 nits
HDR Peak 100% Window516 nits338 nits
HDR Sustained 2% Window597 nits747 nits
HDR Sustained 10% Window758 nits1,070 nits
HDR Sustained 25% Window776 nits990 nits
HDR Sustained 50% Window751 nits501 nits
HDR Sustained 100% Window514 nits335 nits
HDR ABL0.0250.067
Adaptive Sync SupportNoneFreeSync

GSYNC

Variable Refresh Rate
Input Lag at 1080p resolution and 60 Hz refresh rate (Game Mode Enabled)14.0 ms10.1 ms
Input Lag at 1080p resolution and 120 Hz refresh rate (Game Mode Enabled)6.1 ms5.8 ms
Input Lag at 1440p resolution and 60 Hz refresh rate (Game Mode Enabled)14.0 ms10.4 ms
Input Lag at 1440p resolution and 120 Hz refresh rate (Game Mode Enabled)6.1 ms5.9 ms
Input Lag at 4K resolution and 60 Hz refresh rate (Game Mode Enabled)14.0 ms10.6 ms
Input Lag at 4K resolution and 60 Hz refresh rate + 10-bit HDR (Game Mode Enabled)13.9 ms10.4 ms
Input Lag at 4K resolution and 60 Hz at 4:4:414.0 ms10.6 ms
Input Lag at 4K resolution and 120 Hz refresh rate (Game Mode Enabled)6.2 ms6.0 ms
Input Lag at 8K resolution and 60 Hz refresh rate (Game Mode Enabled)56.2 ms10.6 ms
Input Lag at 1080p resolution and 60 Hz refresh rate (Game Mode Disabled)125.7 ms101.1 ms
Input Lag at 4K resolution and 60 Hz refresh rate (Game Mode Disabled)125.8 ms76.2 ms
Input Lag at 4K resolution and 60 Hz refresh rate With Interpolation125.7 ms21.1 ms
PricingCheck price on Amazon.Check price on Amazon.

Screen Sizes

Both of these products come in the 65-inch, 75-inch and 85-inch screen sizes. You can find the model number for each size option below:

QNED99:

  • 65″ (65QNED99UPA)
  • 75″ (75QNED99UPA)
  • 86″ (86QNED99UPA)

QN900A:

  • 65″ (QN65QN900AFXZA)
  • 75″ (QN75QN900AFXZA)
  • 85″ (QN85QN900AFXZA)

HDMI Ports

Each of these televisions comes equipped with four HDMI 2.1 ports.

Native Refresh Rate

Both of these sets have a native refresh rate of 120 Hz.

On the PC, Xbox Series X and Xbox Series S, the QNED99 and QN900A can display games at 120 frames per second natively in 1080p, 1440p and 4K.

On the PlayStation 5, these TVs can display games at 120 fps in 1080p and 4K.

Legacy Consoles Support

Both the QNED99 and QN900A have an antenna/cable input that you can use to connect 8-bit and 16-bit systems like the NES, Super NES and Sega Genesis.

These TVs don’t have a composite input.

HDR Features

When it comes to HDR features, the QNED99 supports Dolby Vision while the QN900A doesn’t. The Dolby Vision format is currently limited to the Xbox Series X and Xbox Series S consoles.

Both of these TVs do support HDR10, a more common format that is used by the PC, PS4, PS4 Pro, PS5, Xbox One S, Xbox One X, Xbox Series S and Xbox Series X.

You can find the full lists of supported HDR features below:

QNED99:

  • Dolby Vision
  • HDR10
  • HLG
  • Local Dimming
  • Wide Color Gamut

QN900A:

  • HDR10
  • HDR10+
  • HLG
  • Local Dimming
  • Wide Color Gamut

Contrast Ratios

According to tests conducted by RTINGS.com, the Samsung QN900A has a better native and local dimming contrast when compared to the LG QNED99.

You can find the contrast ratios for both the QN900A and QNED99 below:

QNED99:

  • Native Contrast: 638 to 1
  • Local Dimming Contrast: 6,534 to 1

QN900A:

  • Native Contrast: 1,658 to 1
  • Local Dimming Contrast: 15,403 to 1

HDR Brightness in Game Mode

According to RTINGS, the Samsung QNED99 also outperforms the LG QN900A when it comes to HDR brightness.

The QNED99 is able to output 1,104 nits when you are using the TV’s low latency mode. In the same scenario, the QNED99 is able to output 792 nits. With that said, the QN900A does perform better in brighter scenes.

You can take a look at RTINGS’ HDR brightness test results for the QN900A and QNED99 below:

HDR Real Scene Highlight

  • QNED99: 792 nits
  • QN900A: 1,104 nits

HDR Peak 2% Window

  • QNED99: 613 nits
  • QN900A: 761 nits

HDR Peak 10% Window

  • QNED99: 972 nits
  • QN900A: 1,113 nits

HDR Peak 25% Window

  • QNED99: 1,002 nits
  • QN900A: 1,023 nits

HDR Peak 50% Window

  • QNED99: 761 nits
  • QN900A: 506 nits

HDR Peak 100% Window

  • QNED99: 516 nits
  • QN900A: 338 nits

HDR Sustained 2% Window

  • QNED99: 597 nits
  • QN900A: 747 nits

HDR Sustained 10% Window

  • QNED99: 758 nits
  • QN900A: 1,070 nits

HDR Sustained 25% Window

  • QNED99: 776 nits
  • QN900A: 990 nits

HDR Sustained 50% Window

  • QNED99: 751 nits
  • QN900A: 501 nits

HDR Sustained 100% Window

  • QNED99: 514 nits
  • QN900A: 335 nits

HDR ABL

  • QNED99: 0.025
  • QN900A: 0.067

Adaptive Sync Support

While the QNED99 doesn’t support any of the adaptive sync modes, the QN900A will work with FreeSync, GSYNC and Variable Refresh Rate.

FreeSync is mainly is designed for AMD graphics cards for PCs while GSYNC is mainly for NVIDIA graphics cards for computers. Variable Refresh Rate is for the PlayStation 5, Xbox Series X and Xbox Series S.

All three of these adaptive sync modes will help get rid of a majority of minor stutters and tearing in games that aren’t able to maintain a stable frame rate.

Input Lag

Based on testing from RTINGS.com, the Samsung QN900A also exhibits lower input latency than the LG QNED99 when you use the game mode settings for both televisions.

While the differences are small up to 4K, the QN900A has a major edge over the QNED99 at 8K as the input lag becomes noticeable at the highest display resolution on LG’s TV.

You can take a look at RTINGS’ input lag test results for the QN900A and QNED99 below:

1080p resolution and 60 Hz refresh rate (Game Mode Enabled)

  • QNED99: 14.0 ms
  • QN900A: 10.1 ms

1080p resolution and 120 Hz refresh rate (Game Mode Enabled)

  • QNED99: 6.1 ms
  • QN900A: 5.8 ms

1440p resolution and 60 Hz refresh rate (Game Mode Enabled)

  • QNED99: 14.0 ms
  • QN900A: 10.4 ms

1440p resolution and 120 Hz refresh rate (Game Mode Enabled)

  • QNED99: 6.1 ms
  • QN900A: 5.9 ms

4K resolution and 60 Hz refresh rate (Game Mode Enabled)

  • QNED99: 14.0 ms
  • QN900A: 10.6 ms

4K resolution and 60 Hz refresh rate + 10-bit HDR (Game Mode Enabled)

  • QNED99: 13.9 ms
  • QN900A: 10.4 ms

4K resolution and 60 Hz at 4:4:4

  • QNED99: 14.0 ms
  • QN900A: 10.6 ms

4K resolution and 120 Hz refresh rate (Game Mode Enabled)

  • QNED99: 6.2 ms
  • QN900A: 6.0 ms

8K resolution and 60 Hz refresh rate (Game Mode Enabled)

  • QNED99: 56.2 ms
  • QN900A: 10.6 ms

1080p resolution and 60 Hz refresh rate (Game Mode Disabled)

  • QNED99: 125.7 ms
  • QN900A: 101.1 ms

4K resolution and 60 Hz refresh rate (Game Mode Disabled)

  • QNED99: 125.8 ms
  • QN900A: 76.2 ms

4K resolution and 60 Hz refresh rate with Interpolation

  • QNED99: 125.7 ms
  • QN900A: 21.1 ms