LG C9 vs LG CX TV Comparison 2020/08


With the LG OLED CX released in 2020, the C9 has got a worthy successor. The two OLEDs are incredibly similar, which is already reflected in their design – because when switched off, the two OLEDs are almost indistinguishable.

We’ll find out if there really has been a change in performance or features between the 2020 CX and the 2019 C9 – or if it’s the same TV in a new box.

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LG C9 and LG CX compared
Which TV is better?

2019 LG OLED
  • Perfect blacks
  • Infinite contrast ratio
  • Very wide viewing angle
  • Alpha 9 Gen 2 processor
  • HDMI 2.1
  • Peak Brightness
  • Automatic Brightness Limiter (ABL)
  • Built-in speakers
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2020 LG OLED
  • Perfect blacks
  • Infinite contrast ratio
  • Very wide viewing angle
  • HDMI 2.1
  • Black Frame Insertion feature at 120Hz
  • Alpha 9 Gen 3 processor
  • Built-In speakers
  • Dolby Vision IQ
  • Automatic Brightness Limiter (ABL)
  • HDMI bandwidth 40 GBit/s.
  • No DTS
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Detailed comparison: LG C9 or LG CX

It is no secret that the LG C9 is one of the best TVs of 2019. The OLED panel provides perfect blacks, a theoretically infinite contrast ratio and a very wide viewing angle. The C9 gets a touch brighter than the CX and also the viewing angle is a slightly wider - but these two advantages will probably be very difficult or impossible to see in normal use. Both OLEDs are equipped with a HDMI 2.1 interface, but the CX has a lower bandwidth of 40 GBit/s instead of the 48 GBit/s that its predecessor has. This does not make any difference as no TV can use the whole bandwidth anyway. The LG C9 is available in 55, 65 and 77 inch.
The LG CX does not differ from its predecessor in terms of picture quality. Due to the OLED construction it has an equally excellent picture and there is no real difference. However, the CX has the Black Frame Insertion feature at 120Hz. This allows a reduction of the already very slight motion blur even at a refresh rate of 120Hz. The CX's built-in speakers are slightly better and the sound is a little rounder - but there's no DTS anymore. But besides the new Alpha 9 Gen 3 image processor, which is now also supposed to optimize the sound. The CX also supports Dolby Vision IQ, which allows the brightness of HDR content to be automatically adjusted to the ambient brightness. In addition to 55, 65 and 77 inches, the CX is also available in a 48 inch version.
Panel typeOLED PanelOLED Panel
Resolution3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p
Contrast ratioinfinitely :1infinitely :1
Local DimmingOLEDOLED
Frequency120 Hz120 Hz
Input Lag< 14 ms< 15 ms
Motion Handling
Ø brightness
Max brightness
Operating systemwebOS 4.5webOS 5.0
Dolby Vision
Dolby Atmos
HDMI 2.1
Improved viewing angle
* All prices are in USD incl. VAT, if necessary plus shipping. Interim changes of prices, ranking, delivery time and costs are possible.
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Our conclusion: LG C9 vs LG CX - Two very similar OLEDs with slightly different features

The two OLEDs are very similar . Thus similarly even that only small but fine differences can be weighed with the purchase. In any case it is clear that the CX and C9 are both high end models, which have an almost identical picture quality – just like most other 2020 OLEDs.

Hence, only the features differ slightly. The CX has the Black Frame Insertion feature at 120Hz, Dolby Vision IQ and better integrated speakers. In return, the HDMI 2.1 interface of the C9 has a wider bandwidth – which really does not make a difference until now. Whoever can do without the additional features of the CX, or already owns a sound system can also purchase the C9, because in the end you get excellent picture quality from both devices, which can hardly be criticized. Only in very bright rooms both TVs do not perform quite as well, but neither TV has a real advantage in this field. Whoever is looking for a TV which performs well in a very bright environment can also consider Samsung’s Q90T.
For a great gaming experience, both TVs are great and there is no way to really pick a winner. The Black Frame Insertion feature at 120Hz of the CX can reduce the motion blur a little more, but otherwise the two OLEDs are equal – and due to the wide viewing angle, sports games like FIFA or PES can be enjoyed superbly on both TVs. So both TVs are well prepared for the Playstation 5 and the Xbox Series X!

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