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Samsung Q90T vs LG CX Review (QN55Q90T vs OLED55CX, QN65Q90T VS OLED65CX, QN75Q90T vs OLED77CX)

by on June 17, 2020
 



 

The Samsung Q90T is the top 2020 model of Samsung 4K QLED TV lineup or the newest model of Samsung Q90 Series. On the other hand, the LG CX or OLED CX is a part of LG’s 2020 OLED TV lineup, also the newest model of the LG OLED C Series. Both of them are great TVs for any usage. But of course, since they use different panel technology, the Q90T uses VA LED Panel Technology while the LG CX uses OLED Panel. As we have known, LED panel and OLED panel have advantages and disadvantages than the other. The major shortcoming of the OLED TV is vulnerable to permanent burn in while the VA LED panel is its side viewing angle that is poor. But even so, in its development, these issues can be minimized.

In the market, they both come in 4 screen sizes, but their smallest and the largest screen size is different. Meanwhile, the size that is same is 55 inches (QN55Q90T vs OLED55CX) and 65 inches (QN65Q90T vs OLED65CX). In addition to these sizes, the Samsung Q90T also comes in 75 inches model (QN75Q90T) and 85 inch model (QN85Q90T), while the OLED CX comes in 48 inches model (OLED48CX) and 77 inches model (OLED77CX). Meanwhile, with the same screen sizes (QN55Q90T vs OLED65CX, QN65Q90T vs OLED65CX), they have almost the same price. So, which is superior and a better choice between them?

Short Review of the LG OLED CX

LG OLED CX Review

As we have known, the LG OLED CX is the newest model of LG OLED TV C Series, the successor of the Last year’s model OLED C9. In this year, the LG CX also comes in 48 inches model OLED48CX we have not find in previous models.  The LG CX might not bring a big change in design, specifications, and features over its predecessor. But even so, it is already powered by the third generation of Alpha 9 processor that offers some improvement and clear-up any issues leftover from the second generation of alpha 9. The good news, its price is substantially cheaper than its predecessor has been at launch. Meanwhile, since all models of LG OLED TVs use the panels which has the same technical platform, of course, picture quality and performance of the LG OLED CX is not much different to higher models which sold hundreds even thousands dollars more expensive.

WRGB OLED

Come with OLED panel, the LG OLED CX offers outstanding performance in almost all aspects of picture quality. It has infinite contrast due to its self-lighting pixel, make it is able to produce nearly perfect black. Additionally, it also has great color gamut, allow it is able to show colorful HDR images with very accurate colors. OLED panel is also able to maintain great picture quality from side angle, so you don’t need to worry when you want to place it in a wide room with wide seating arrangement. And lastly, its nearly instantaneous pixel response time ensure motion look smoother when it is playing fast moving content like fast sports or fast movies. But there is no perfect. It still has some major shortcoming such as vulnerable to permanent burn-in, limited peak brightness, and cannot produce very bright saturated colors.

Just we have mentioned, the LG OLED CX is powered by the third generation of Alpha 9 image processor that offers some improvements and clear-up any issues leftover from the predecessor. Just like the predecessor, this processor also makes the LG CX have some AI-related features such as AI-Picture, AI-AI Picture, AI Sound, etc. Additionally, this processor also offer an improvement in its AI-based up-scaling engine that offer cleaner, more consistent, and more detailed look than HD content after the content has been converted to 4K resolution.

Meanwhile, in this year, the LG OLED CX comes with more new two picture modes than found on the predecessor OLED C9. The first is FilmMaker mode. This mode is designed to recreate on the TV the sort of settings creators use when mastering content. Meanwhile, the second is Dolby Vision IQ. It is not a new HDR format. But this mode is designed to improve Dolby Vision Images by combining an assessment of room conditions provided by a built-in light sensor and screen optimization elements of Dolby Vision. In this mode, the TV can automatically adjust the TV settings in real time based on these two factors. The result, Dolby Vision images displayed on their screen look consistently, regardless how much room conditions changes. But even so, this TV mode cannot work alone. To get the advantage of this mode, the LG’s AI Brightness and the Dolby Vision Cinema Home mode must be activated.

WebOS 4.5

As their smart TV platform, the LG OLED CX runs WebOS 5.0 version. This version continues to be slick and easy to use. In addition it has simple and easy to use layout, the interesting thing that offered by WebOS is its voice recognition. In addition to LG’s own ThinQ AI platform, it also already supports Amazon Alexa and Google Assistant. And the good news, all of them have been built-in. So, to take all advantage of these platforms, you don’t need to add external listening device. And in addition to usual streaming platform like Netflix, Amazon Videos, Hulu, etc, in this version, you will also find some new additions streaming platform such as Disney+ and Apple TV+, etc.

Shot Review of Samsung Q90T

Samsung Q90T Review

Just we have mentioned, the Samsung Q90T is the flagship of Samsung’s 2020 4K QLED TV lineup. It is the successor the90R, the flagship of last years’ Samsung 4K QLED TV. It is also a great TVs for mixed usage that offers strong performance in almost all aspects of picture quality. Just like LG OLED CX, the Samsung Q90T doesn’t also bring a big change over the predecessor. However, even though it is powered by the same image processor found on the predecessor, but its image processor has been improved. Just like the LG CX, the image processor of the Q90T or called Quantum 4K processor also allows it has some AI related features like Adaptive Brightness, Adaptive Sound, and Adaptive Volume. Additionally, the algorithm that used by its Up-scaling engine have been also based on AI, so the content that has been converted look more detail look, cleaner, and more consistent than that converted by conventional Up-scaling engine.

Come to their panel, the Samsung Q90T use VA (Vertical Alignment) panel technology that has been supported by Quantum Dot Technology. Just like the predecessor, its panel has been also supported by an antiglare optical panel called “Ultra Viewing Angle” that significantly improved is side viewing angle. Additionally, it also comes with a backlight control called Direct Full Array 16x that also found on the predecessor. But its algorithm has been improved that allows it is able redistributes power around the LEDs more intelligently. This allows it can produce exceptional deep dark and minimize blooming fairly well.

Tizen 2020 oS

As its smart TV platforms, the Samsung Q90T runs Tizen OS 2020 version. Just like WebOS, it also has intuitive and attractive layout that is easy to use. It also has built in voice recognition that supported by Samsung’s own Bixby voice assistant and Amazon Alexa. Additionally, with future firmware update, it is expected also support Google Assistant. But unfortunately, even though the Q90T will support Google Home in future, it still requires an external “listening devices”. Meanwhile, the streaming platform that provided by Tizen OS are also fairly complete, in addition YouTube, Netflix, Hulu, etc as usual suspect, the Q90T also already support Disney+ Apple TV+, etc.

Samsung Q90T vs LG OLED CX Key Specification

Specs and Features Samsung Q90T LG OLED CX
Resolution 4K (2160 x 3840) 4K (2160 x 3840)
Screen Type Flat Flat
Screen Sizes Available 55 inches (QN55Q90TAFXZA), 65 inches (QN65Q90TAFXZA), 75 inches (QN75Q90TAFXZA), and 85 inches (QN85Q90TAFXZA) 48 Inches (LG OLED48CXPUB) 55 Inches (OLED55CXPUA), 65 Inches (OLED65CXPUA), 77 inches (OLED77CXPUA)
Panel Type VA LED Panel with Quantum Dot technology and anti glare optical layer (Ultra Viewing Angle) OLED
Dimming Direct Full Array 16x (Full Array Local Dimming Pixel Level Dimming
Picture Engine Quantum Processor 4K Alpha 9 Gen 3 Processor
4K Up-scaling AI 4K Up-scaling AI Up scaling
HDR Format Supports HDR10+, HDR10, HLG Dolby Vision IQ, HDR10, HLG
HDR Enhancement - 4K Cinema HDR, HDR Dynamic Tone Mapping Pro, Dolby Vision IQ
Contrast Enhancement - Object Depth Enhancer, Ultra Luminance Pro, Face Enhancing
Color Enhancement - Intense Color, Billion Rich Colors, Advanced Color Enhancer, True Color Accuracy Pro, 4 Colors Sub Pixel
Clarity Enhancement - Quad Step Noise Reduction, Frequency Based Sharpness Enhancer
Motion Enhancement Motion Rate 240 OLED Motion Pro
Native Refresh Rate Panel Native 120 Hz Native 120 Hz
Variable Refresh Rate Support HDMI Forum VRR, FreeSync HDMI Forum VRR, G-Sync (NVidia Certified), FreeSync is on a future firmware update, HGiG
Platform Tizen 2020 WebOS 5
AI TV (Artificial Intelligence) SmartThing, Google Assistant, Amazon Alexa, Intelligence Voice Recognition, Adaptive Brightness, Adaptive Sound, Adaptive Volume, Apple AirPlay 2, etc LG ThinQ AI, Google Assistant, Google Home, Amazon Alexa, Intelligence Voice Recognition, AI Picture Pro, AI Sound Pro, AI Brightness, Apple AirPlay 2, Apple Home Kit, etc
Remote Samsung Smart Remote TM2050C LG Magic Remote 2020
HDMI 4 4
HDMI Supports HDMI 2.1 Full bandwidth (HDMI 4), HDMI 2.0 Full bandwidth (All), HDCP 2.2 (All), ARC (HDMI 3), eARC (HDMI 3) HDMI 2.1 Full bandwidth (All), HDMI 2.0 Full bandwidth (All), HDCP 2.2 (All), ARC (HDMI 2), eARC (HDMI 2)
USB 2 (USB 2.0) 3 (USB 2.0)
Ethernet 1 1
RF (Terrestrial Cable) 1 1
Composite In (AV) - 1
Component In No No
Channel 4.2 Channel 2.2
Total Audio Output 60 Watt(WF : 20 Watts) 40 Watt(WF : 20 Watts)
Dolby Atmos Support No Yes

Check the Latest Price
LG OLED CX Samsung Q90T
48 Inches LG OLED48CXPUB on Amazon
55 Inches LG OLED55CXPUA on Amazon QN55Q90TAFXZA on Amazon
65 Inches LG OLED65CXPUA on Amazon QN65Q90TAFXZA on Amazon
75 inches QN75Q90TAFXZA on Amazon
77 Inches LG OLED77CXPUA on Amazon
85 Inches QN85Q90TAFXZA on Amazon

LG OLED CX vs Samsung Q90T Performance

Black Level and Contrast

Just we have known, one of the major advantages of the OLED TV including the LG CX is their infinite contrast ratio and outstanding black uniformity. Since its OLED panel has self-lighting pixel, when showing black, there is no light at all emitted from black area. This makes black produced is nearly perfect. Additionally, its self-lighting pixel also allows the OLED CX has pixel dimming level. This is equivalent to the Full Array Local Dimming on the LED TV that has number of dimming zone is same to the number of pixel.  And for LED TV, it seems impossible for this time. Its pixel dimming level makes small highlight like subtitle in movie will look fairly focused without visible blooming around it. Talking about black level and Contrast ratio, the OLED TV including LG OLED CX is the best.

On the other hand, even though not as perfect as OLED CX, the Samsung Q90T also has outstanding contrast ratio. The use of “Ultra Viewing Angle” optical layer may reduce its native contrast ratio down to around 4000:1 where this tends to be lower than most of VA TVs. But it has great local dimming feature that can improve their contrast ratio to around 11.000:1, allow it can produce black deeper than 0.01 nits. Additionally, its local dimming also can do a good job in minimizing blooming around highlights. And combined to its excellent black uniformity, dark scene displayed on its screen looks excellent, even when it is set in a dark room. When coming to HDR, details in shadow can be revealed excellently the way they should in HDR.

Winner: LG CX

Peak Brightness

In term of black level, the LG CX may be winner, but in term of peak brightness, the Samsung Q90T is winner. With real SDR content, overall, the Q90T can hit around 600 nits while the OLED CX is around 325 nits. Additionally, the brightest peak brightness hit by the Q90T is around 1350 nits, which is on 10% window (10% of screen is bright while the rest is white). The LG CS also hits its brightest peak brightness at 2% and 10% window, which is around 450 nits. Meanwhile, the larger bright area, their peak brightness drops, and on 100% window (throughout screen is bright), they both hit their dimmest peak brightness. The dimmest peak brightness of the Q90T is around 500 nits while the LG OLED CX is around 150 nits. With this parameter, can be ascertained, in a bright room, the picture displayed on the screen of the Q90T will look more obviously than that displayed on the screen of LG CX. But even so, although not as bright as the Q90T, peak brightness of the LG CX is actually also still bright enough to fight the glare in most bright rooms. So, as long as you don’t set it in a very bright room with a lot of light or sunny window, the picture displayed on its screen will also look obviously.

Meanwhile, when coming to HDR, they both can hit much brighter peak brightness than when with SDR content. With real content, the Samsung Q90T can hit around 1150 nits that means it is great. On the other hand, although not as bright as the Q90T, LG OLED CX can still hit around 700 nits, which is also excellent for OLED TV. Just like with SDR content, both of them hit their brightest peak brightness on 10% window size where the Q90T hit around 1350 nits while the LG CX hit around 800 nits. But even so, on 100% window, their peak brightness significantly drops to around 150 nits for the OLED CX and around 600 nits for the Samsung Q90T. With peak brightness reached by them, can be ascertained that the Samsung Q90T can show much brighter HDR images than the LG OLED CX. It even can meet 1000 nits of the target. With around 1350 nits on 10% window and around 1050 nits on 2% window, small highlight can pop like that expected in HDR. On the other hand, although not as bright as the Q90T, for OLED TV, peak brightness of the LG CX is also great. It can show HDR images as bright they should be with small highlight that pops. But of course, it is not able to show HDR images at 1000 – 4000 nits of brightness range intended by content creator.

Winner: Q90T

Color Performance

Both Samsung Q90T and LG OLED CX already support wide color gamut. In DCI P3 xy color space, the LG CX can cover around 97% while the Q90T cover around 89%. Additionally, in DCI P3 uv color space, the LG CX can cover around 98% while the Q90T cover around 93%. Meanwhile in Rec.2020 xy and uv color space, the Q90T cover around 67% and 75% while the OLED CX cover around 72% and 76%. This means, the OLED CX can deliver wider color gamut than the Samsung Q90T that of course, in certain colors, the OLED CX can shown more accurate than the Q90T. Meanwhile, the underperforming of Q90T in delivering color gamut may be caused the use of “Ultra Viewing Angle” optical layer that reduces its color gamut. Nevertheless, although not as wide as the LG CX, color gamut delivered by the Q90T is also wide enough to show HDR images with vibrant color.

Color gamut of the Samsung Q90T may be not as wide as the LG CX but it has better color volume. Its deep dark allows it can produce deep dark colors fairly well. Meanwhile on the top, it can also produce saturated bright colors fairly well, except very bright blues. In general, the Q90T can produce its wide color gamut at its entire brightness range. On the other hand, the LG OLED CX may be able to produce deep dark colors excellently. Additionally, the additional white sub-pixel of its OLED panel also allows it can produce pure white. But unfortunately, its white sub-pixel also cause it cannot produce bright saturated colors.

While the LG CX is better in color gamut and Samsung Q90T is better in color volume, their color gradient is equally great and almost similar. On their screen, there are still some little bandings in most colors, particularly in dark greens and dark ray. But even so, with untrained eyes, this should not be noticeable and in general, color gradient of HDR images displayed on their screen looks very smooth. But even so, if you are still uncomfortable with banding that may be visible, both of them have a feature that can reduce the banding. On the Samsung Q90T, you just need to enable “Noise Reduction” while on the LG OLED CX, you just need to enable “Smooth Gradation”. But keep in mind, enabling these features may can reduce banding, but on the other hand, this will cause the image lose some fine details.

Winner: LG CX is better in color gradient, Samsung Q90T is better in color volume.

Side Viewing Angle

The other major advantage of the OLED TV including LG CX is its excellent side viewing angle coverage. It has wide viewing angle, even better than LED TVs that used IPS panel. It can maintain its black level and brightness level at up to around 70 degrees that means it is great. When viewed from the side, color of images may be still washed out, but it is still able to maintain color accuracy at up to around 50 degrees. The result, when viewed from the side, the picture displayed on its screen will look as well as when viewed from the side. Meanwhile, even though not as good as OLED panel or IPS TV, the Samsung Q90T also has good side viewing angle coverage due the anti glare optical panel called “Ultra Viewing Angle” that embedded on its panel. Just like the LG CX, the Samsung Q90T can also maintain black level at up to around 70 degrees. However, its performance in maintaining brightness level and color accuracy is not as wide as OLED TV. On its screen, brightness level will drop started at around 45 degrees while color will be look washed-out started at around 40 degrees. But even so, if compared to conventional VA panel, it is still much better.

Winner: LG CX

Motion Handling

Both Samsung Q90T and LG OLED CX also have excellent motion handling due to their extremely low pixel response time. The pixel response time of the Q90T is around 10 ms, low enough to make fast moving scene looks very smoothly with almost no visible motion blur. Behind fast moving object, there is only a short ghosting trail where this should not be noticeable for most people. On the other hand, the pixel response time of the LG CX is even more excellent, which is around 2 ms. This certainly makes fast moving images looks clear with almost no visible ghosting trail. But on the contrary, the nearly instantaneous pixel response time can cause image appear to stutter, particularly when it is playing low frame rate content. However, the stuttering can be minimized by enabling OLED Motion or Motion Interpolation.

Meanwhile, to minimize persistence blur, they both have an optional BFI (Black Frame Insertion) mode at both 60 Hz and 120 Hz. This is very effective to make motion smoother, particularly when they are playing 60 fps or 120 fps content. To enabling its 60 Hz BFI mode, on the Q90T, you just need to enable LED Clear Motion while on LG CX, you just need to set “Tru Motion” to “User” and “OLED Motion” to “high”. Meanwhile, to enable their 120 Hz mode, on the Q90T, you just need enable “Picture Clarity” without adjusting any of the sliders. Meanwhile on LG CX, you just need set “Tru Motion” to “User”. But a bit unfortunately, its 120 Hz BFI only works properly in Game mode.

When playing 24p movies, they both also can do a great job. This means, regardless the source of the movies, all of them will be displayed on their screen with judder-free. To remove the judder, on the LG CX, you just need to enable the “Real Cinema” from the “Picture Mode Setting”. But keep in mind, enabling real cinema while OLED Motion is still enabled will cause judder is always visible. Meanwhile, on the Q90T, you just need to set “Picture Clarity” to “Custom” and adjust the “Blur Reduction” to “10” for 60 fps and adjust the “Judder Reduction” to “10” for 30 fps content.

Winner: LG CX

Input Lags

Meanwhile, talking about their input lags in game mode, the Samsung Q90T has a bit lower input lags than the LG CX, particularly with 60 fps content.  Regardless the resolution, at 60 Hz, the input lags of the Q90T is around 10 ms while the LG CX is around 15 ms. Meanwhile, with 120 fps content, the input lags of the Q90T is also a bit lower, which is around 6 ms compared to the LG CX that has input lags of around 7 ms. And with VRR mode, their input lags is also depending on resolution. On 1080p and 1440p resolution, their input lags is almost similar, which is around 6.5 ms. Meanwhile, on 4K resolution, the input lag of the LG CX is a bit lower, which is around 11 ms compared to the Q90T that has input lag around 15 ms. Can be ascertained, when used for playing games, the Q90T is a bit more responsive than the LG CX, particularly for 60 fps games. But even so, ignoring their differences, their input lags is low enough to make any game feels responsively, even for fast paced games which require fast reflexes.

Winner: Q90T

Check the Latest Price
LG OLED CX Samsung Q90T
48 Inches LG OLED48CXPUB on Amazon
55 Inches LG OLED55CXPUA on Amazon QN55Q90TAFXZA on Amazon
65 Inches LG OLED65CXPUA on Amazon QN65Q90TAFXZA on Amazon
75 inches QN75Q90TAFXZA on Amazon
77 Inches LG OLED77CXPUA on Amazon
85 Inches QN85Q90TAFXZA on Amazon

Conclusion

For Watching Movies

Both Samsung Q90T and LG OLED CX are great TVs for watching movies in a dark room. They both have deep black level that make black of images look really black in a dark room. Additionally, they both are also able to handling 24p movies with judder-free. But even so, compare between them, the LG CX certainly is better than the Samsung Q90T. The Q90T may have extremely deep black, but the LG CX can produce nearly perfect black. Additionally, the local dimming feature of the Q90T may also well work to further improve its performance in a dark room by minimizing blooming and others. However, with pixel dimming level, blooming can be better minimized. Overall, their performance when used for watching movies in great, but LG CX is better than Samsung Q90T due to its infinite contrast ratio.

Winner: LG CX

For Watching Sports

When used for watching sports, their performance is also equally great. They both have good SDR peak brightness, allow you to watch sports in most bright rooms without any issues. Additionally, they both also have excellent pixel response time that makes fast sports appears clearly on their screen. Their BFI mode also make the image smoother when playing sports that usually has 60 Hz of frame rate. And lastly, they both have good side viewing angle coverage, ensures all of you can get the best viewing when watching a big game with a group of your family or friend. Compare between them, since the Q90T has brighter SDR peak brightness, the Q90T is better when it is used in a very bright room due the picture displayed on its screen looks more obviously than on the screen of OLED CX. On the other hand, the LG CX has better pixel response time, makes fast sports look clearer on its screen. Additionally, it also has wider viewing angle that makes the picture displayed on its screen look better than the Q90T when viewed from extremely side angle.

Winner: LG CX

Video Games

Both of the Samsung Q90T and LG OLED CX are also great TVs for playing games. In addition they both have excellent picture quality and good motion handling, they both also have low input lags in Game mode, makes them very responsive for any type of games. Additionally, both of them also already supports VRR mode where the VRR of Q90T is compatible to HDMI Forum and FreeSync while the OLED CX is compatible with HDMI Forum and G-Sync. Even with a future firmware update, the OLED CX will also support FreeSync. This allows you to play game with screen tearing-free. And their wide viewing angle ensure all of you to get the best viewing when you are playing multiplayer game with a group of your family or friend. Compare between them, the Samsung Q90T is more responsive than the LG CX, and this will be more pronounced when you are playing 60 fps games. On the other hand, with lower pixel response time, fast games will look clearer on the screen of the OLED CX than the Q90T. Special for the LG CX, since OLED panel has a risk to permanent burn in, particularly when showing static image, play the same games for over long time should be avoided.

Winner: Q90T

HDR Experience

Both of the LG OLED CX and Samsung Q90T also offer great HDR experience. Their deep black is able to reveal details in shadow of HDR images excellently, makes shadow details of HDR images can be shown the way they should in HDR. Additionally, combination of their wide color gamut, good color volume, and smooth color gradient makes HDR images can be shown color fully with vibrant color and smooth color gradient. And lastly, their peak brightness is bright enough to show HDR images fully as bright they should be with highlight that pop. Special of the Q90T, in certain scene, it is even able to show HDR images brighter than 1000 nits of the target intended by the content creator. Meanwhile, compare among them, the LG CX is better when showing shadow details while the Samsung Q90T is better when showing small highlight.

Winner: LG CX is better in shadow details while the Q90T is better in highlight

Summary

As we have discussed a lot above, both of Samsung Q90T and LG CX are great TVs for any usage. No matter they are used for watching movies, sports, HDR content, or playing games, they both have outstanding performance. But even so, since they have difference in panel technology, each of them surpasses each other. But even so, that is most pronounced, the LG CX is superior in producing black, side viewing angle, and pixel response time while the Q90T is superior in peak brightness and input lag. So, which is a better choice between them? The decision certainly comes back to you according to your own preferences.

Check the Latest Price
LG OLED CX Samsung Q90T
48 Inches LG OLED48CXPUB on Amazon
55 Inches LG OLED55CXPUA on Amazon QN55Q90TAFXZA on Amazon
65 Inches LG OLED65CXPUA on Amazon QN65Q90TAFXZA on Amazon
75 inches QN75Q90TAFXZA on Amazon
77 Inches LG OLED77CXPUA on Amazon
85 Inches QN85Q90TAFXZA on Amazon

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