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LG C1 vs. Sony A90J: Which is the Better Gaming TV?

In 2021, both the C1 and A90J were released. So, which of these OLEDs is better when it comes to displaying games running on the PC, PlayStation 5, Xbox Series S, Xbox Series X and other consoles?

You can find out in this comparison between the two TVs.

Quick Summary

Although the HDR brightness for both of these OLED televisions are pretty much the same, the C1 has the advantage over the A90J when it comes to input lag. Furthermore, the A90J also comes with two additional HDMI 2.1 port.

While Sony is expected to add Variable Refresh Rate support to the A90J, the C1 already support this feature right out of the box along with FreeSync and GSYNC.

So, between these two TVs, the C1 is clearly the better options when it comes to playing videogames.

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

You can also see how the A90J compares to the LG G1 with this article.

C1 vs. A90J Comparison Chart

You can take a look at Seeking Tech’s comparison table for the LG C1 and Sony A90J below.

 LG C1Sony A90J
Screen Sizes48" (OLED48C1PUB)

55" (OLED55C1PUB)

65" (OLED65C1PUB)

77" (OLED77C1PUB)

83" (OLED83C1PUA)
55" (XR-55A90J)

65" (XR-65A90J)

83" (XR-83A90J)
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 2.0

HDMI Port #2: HDMI 2.0

HDMI Port #3: HDMI 2.1

HDMI Port #4: HDMI 2.1
Legacy Consoles SupportAntenna/cable inputAntenna/cable input

Composite input via adapter (sold separately)
HDR FeaturesDolby Vision

HDR10

HLG

Wide Color Gamut
Dolby Vision

HDR10

HLG

Wide Color Gamut
HDR Real Scene Highlight611 nits609 nits
HDR Peak 2% Window737 nits803 nits
HDR Peak 10% Window743 nits770 nits
HDR Peak 25% Window403 nits512 nits
HDR Peak 50% Window285 nits294 nits
HDR Peak 100% Window162 nits194 nits
HDR Sustained 2% Window701 nits763 nits
HDR Sustained 10% Window716 nits723 nits
HDR Sustained 25% Window388 nits499 nits
HDR Sustained 50% Window269 nits293 nits
HDR Sustained 100% Window128 nits192 nits
HDR ABL0.1060.086
Native Refresh Rate120 Hz120 Hz
Adaptive Sync SupportFreeSync

GSYNC

Variable Refresh Rate
Variable Refresh Rate via future firmware update
1080p resolution and 60 Hz refresh rate (Game Mode Enabled)10.1 ms17.5 ms
1080p resolution and 120 Hz refresh rate (Game Mode Enabled)5.2 ms12.1 ms
1080p resolution and Variable Refresh Rate5.3 msN/A
1440p resolution and 60 Hz refresh rate (Game Mode Enabled)10.2 ms16.6 ms
1440p resolution and 120 Hz refresh rate (Game Mode Enabled)5.3 msN/A
1440p resolution and Variable Refresh Rate5.6 msN/A
4K resolution and 60 Hz refresh rate (Game Mode Enabled)10.0 ms16.6 ms
4K resolution and 60 Hz refresh rate + 10-bit HDR (Game Mode Enabled)10.2 ms16.6 ms
4K resolution and 60 Hz at 4:4:410.3 ms16.7 ms
4K resolution and 120 Hz refresh rate (Game Mode Enabled)5.3 ms12.0 ms
4K resolution and Variable Refresh Rate5.8 msN/A
1080p resolution and 60 Hz refresh rate (Game Mode Disabled)88.9 ms168.6 ms
4K resolution and 60 Hz refresh rate (Game Mode Disabled)88.8 ms151.9 ms
4K resolution and 60 Hz refresh rate With Interpolation84.4 ms143.7 ms
PricingCheck price on Amazon.Check price on Amazon.

Screen Sizes

The C1 is available in five screen sizes while the A90J comes in three sizes.

You can find the available options, as well as the associated model numbers, for the C1 and A90J OLEDs below:

C1:

  • 48″ (OLED48C1PUB)
  • 55″ (OLED55C1PUB)
  • 65″ (OLED65C1PUB)
  • 77″ (OLED77C1PUB)
  • 83″ (OLED83C1PUA)

A90J:

  • 55″ (XR-55A90J)
  • 65″ (XR-65A90J)
  • 83″ (XR-83A90J)

HDMI Ports

When it comes to HDMI ports, the all four ports of the C1 are version 2.1.

For the A90J, two of the ports are version 2.0 while the other two are version 2.1.

You can find a breakdown of the HDMI ports for both of these 2021 television sets below:

C1:

  • HDMI Port #1: HDMI 2.1
  • HDMI Port #2: HDMI 2.1
  • HDMI Port #3: HDMI 2.1
  • HDMI Port #4: HDMI 2.1

A90J:

  • HDMI Port #1: HDMI 2.0
  • HDMI Port #2: HDMI 2.0
  • HDMI Port #3: HDMI 2.1
  • HDMI Port #4: HDMI 2.1

Legacy Consoles Support

As for older systems that don’t use HDMI for input, the C1 and A90J each includes an antenna/cable tuner that can be used for the NES, Super NES, Sega Master System, Sega Genesis and TurboGrafx-16.

The Sony A90J also supports composite input although an AV adapter, which you will have to get on your own, is needed to connect to consoles like the PS1, PS2, Nintendo 64, Nintendo GameCube, Nintendo Wii, Sega Saturn, Sega Dreamcast and Xbox.

HDR Features

Both of these 2021 TVs are compatible with Dolby Vision (supported by Xbox Series S and Xbox Series X) and HDR10 (supported by the PS4, PS4 Pro, PS5, Xbox One S, Xbox One X, Xbox Series S and Xbox Series X).

You can take a look at the full list of supported HDR features for these OLEDs below:

  • Dolby Vision
  • HDR10
  • HLG
  • Wide Color Gamut

Game Mode HDR Brightness

As for the brightness levels when it comes to playing games in HDR, the C1 is 2 nits brighter than the A90J, according to tests done by RTINGS.com.

With that said, the A90J does get brighter than the C1 in other testing scenarios.

Overall, we consider both to be pretty much the same when it comes to this category as these two OLEDs should provide a quality experience when playing HDR-enabled videogames.

You can find RTINGS’ HDR brightness level test results for the C1 and A90J below:

HDR Real Scene Highlight

  • C1: 611 nits
  • A90J: 609 nits

HDR Peak 2% Window

  • C1: 737 nits
  • A90J: 803 nits

HDR Peak 10% Window

  • C1: 743 nits
  • A90J: 770 nits

HDR Peak 25% Window

  • C1: 403 nits
  • A90J: 512 nits

HDR Peak 50% Window

  • C1: 285 nits
  • A90J: 294 nits

HDR Peak 100% Window

  • C1: 162 nits
  • A90J: 194 nits

HDR Sustained 2% Window

  • C1: 701 nits
  • A90J: 763 nits

HDR Sustained 10% Window

  • C1: 716 nits
  • A90J: 723 nits

HDR Sustained 25% Window

  • C1: 388 nits
  • A90J: 499 nits

HDR Sustained 50% Window

  • C1: 269 nits
  • A90J: 293 nits

HDR Sustained 100% Window

  • C1: 128 nits
  • A90J: 192 nits

HDR ABL

  • C1: 0.106
  • A90J: 0.086

Native Refresh Rate

The C1 and A90J are 120 Hz televisions.

With the PlayStation 5, you will be able to play videogames at 120 frames per second in 1080p and 4K with these TVs when using the HDMI 2.1 inputs.

With the Xbox Series X, you can play at 120 fps in 1080p, 1440p and 4K on the C1. With the A90J, you can play Series X games at 120 fps in 1080p and 4K.

With the Xbox Series X, you can play at 120 frames per second in 1080p and 1440p right out of the box with the C1 as well as 120 frames per second in 1080p with the A90J. For 120 fps in 4K for both of these televisions, you need to get a HDMI 2.1 cable as the Series X only comes with a HDMI 2.0 cable included in the box.

Adaptive Sync Support

Variable Refresh Rate is designed to help Xbox Series S and Xbox Series X games (as well as PS5 games in the future) run smoother in addition to getting rid of screen tearing.

Variable Refresh Rate is currently only being supported by the C1. However, Sony has stated that the A90J should be adding support for Variable Refresh Rate to the A90J via an upcoming firmware update for their television.

The C1 is also the only one of these two TVs to support FreeSync, which is made for AMD graphics cards, and GSYNC, which is made for NVIDIA graphics cards.

Input Lag

The LG C1 also has the advantage when it comes to input lag.

According to tests done by RTINGS.com, the C1 features lower latency than the A90J when you directly compare the same resolution and refresh rate combinations.

So, while we still consider the A90J to be quite responsive when it comes to playing games, the C1 should provide even quicker feedback to your button presses.

You can take a look at the results from RTINGS’ input lag tests for the C1 and A90J below:

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

  • C1: 10.1 ms
  • A90J: 17.5 ms

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

  • C1: 5.2 ms
  • A90J: 12.1 ms

1080p resolution with Variable Refresh Rate

  • C1: 5.3 ms
  • A90J: N/A

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

  • C1: 10.2 ms
  • A90J: 16.6 ms

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

  • C1: 5.3 ms
  • A90J: N/A

1440p resolution with Variable Refresh Rate

  • C1: 5.6 ms
  • A90J: N/A

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

  • C1: 10.0 ms
  • A90J: 16.6 ms

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

  • C1: 10.2 ms
  • A90J: 16.6 ms

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

  • C1: 10.3 ms
  • A90J: 16.7 ms

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

  • C1: 5.3 ms
  • A90J: 12.0 ms

4K resolution with Variable Refresh Rate

  • C1: 5.8 ms
  • A90J: N/A

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

  • C1: 88.9 ms
  • A90J: 168.6 ms

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

  • C1: 88.8 ms
  • A90J: 151.9 ms

4K resolution and 60 Hz refresh rate With Interpolation

  • C1: 84.4 ms
  • A90J: 143.7 ms