for the price of a 55-inch sony a9tj master series oled you can buy a 65-inch sony atj with some
chains left over should you go for the 55-inch a90j's theoretically superior picture quality
or the 65-inch adjs bigger screen size let's find out in this comparison video
one of the reasons why the sony a90j is more expensive than the atj is because of the
additional metallic heatsink on the a90j now this has a few advantages mainly because it allows the
heat that is generated from the oled panel to be dissipated in a quicker fashion so this heatsink
empowers the a9dj to achieve a higher full screen brightness as you can see from this
luminance loading test pattern and when it comes to real world content i'm using miss peregrine's
home for peculiar children here you can see that the average picture level or apl on the a90j
can go slightly brighter than what the aadj was capable of and besides that you know the
specular highlight detail also sparkle a bit more on the a90j and if we switch to
pen in terms of the 4k blu-ray and this is a movie that has been graded to 4000 knits
you can see that the speckled highlight detail were also clearer on the netgear because of its
higher peak brightness if you pay attention to the clouds surrounding the sun you can just see more
highlight detail on the n90j versus the aatj and remember when i reviewed the energy i talked about
how sony's bravo xr processing managed to polish up the chrome grilles and also make the
flames from the electric guitar more saturated and this is very evident in this side-by-side
comparison between the anti-j and also the adj because you know the a 90j it looks punchier
and more three-dimensional in fact than the adj don't get me wrong the atg still looks
fantastic compared to all other oled tvs on the market that is not made by sony because of the
broadway xr processing that is being implemented by the company but the aa90j just takes it to the
next level really unleashing the full potential of the bravo xr processing making the whole hdr image
pop and looking three-dimensional with more depth to the picture and another advantage afforded by
this additional metallic heatsink is that the a90j can clear up image retention faster than the a80j
here i am displaying a 10 window at peak white in hdr for at least 10 seconds before switching to
a full field gray slide and you can see that the afterglow disappeared quicker on the a9j because
this heatsink really does work to dissipate the heat from the panel and therefore clear up any
image retention and when it came to day mode again the heatsink allowed the a90j to reach a higher
brightness full screen and therefore when you're watching an oled in a very bright room the a90j
will do a better job because of its more relaxed aabl or automatic brightness limiter circuitry
that allows for a brighter full screen picture next we will discuss another difference between
the a netij and the atg and that is in terms of the panel at least you know on the 55 inch and the
65 inch models which i have here so if you look at these comparisons of the viewing angles when
looked from the side because the netij is definitely equipped with lg display's latest and
more efficient oled panel from guangzhou or what is commonly known as the evo panel you can see
more of a pink tint of axis whereas with the aatj it is using a more conventional oled panel
and therefore off center the tint is more cyan or greenish bluish rather than pink and another thing
that we need to talk about is the anti-glare coating on the front of the adj and the a90j
as you can see in the side-by-side comparison when i actually shine a light on both tvs
the adja managed to suppress the reflections in a more effective manner because of the
semi-matte anti-glare coating on the tv whereas the a9j has a glossier coating and therefore
you know it will have more reflection but in the pressure ambient light the a90j actually preserved
more contrast compared with the atg which looked quite muted because of its semi-matte anti-glare
coating so this is just something that you have to bear in mind if you are wanting the highest
contrast possible when watching in a bright room during daytime then the a90j would be the better
choice after discussing those key differences i want to talk about video processing and because
both tvs are equipped with the mediatek mt5895 chipset you can expect that the video processing
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so for example when we talk about upscaling it is very difficult to judge upconversion when we
are comparing different sizes but from what i'm seeing you know they are equally good you know
dark scaling is class leading among tv brands and jackie's suppression was decent there
are still some jagged ages on the third bouncing bar in this hqv benchmark has pattern and
that is for video based interlacing and when it came to film based interlacing
with film mode engaged both tvs will correctly detect and process 3 2 and 2 2 cadences
and both tvs will also pass through chroma bandwidth with game or graphics mode engaged
and the native 10-bit radiation in the scene from the martian is the best we've seen among
oled tvs in 2021 and certainly i think you know sony has got its gradation nail even without the
help of the smoke edition decontouring filter and once both tvs are calibrated you can expect
the colors to look very similar as you can see in this scene from skyfall faithfully
reproducing the creator's intent when it came to all types of colors including skin tones
and motion was equally good on both tvs as well so without motion flow enabled both tvs will apply
for for pull down to present 24 frames per second films smoothly without any telesconic judder
and in terms of motion resolution you can engage smoothness which activates motion
interpolation and also clearness which activates blu-ray insertion simultaneously to elevate the
motion resolution to 1080 lines or even higher and sony's motion flow algorithm is less prone
to introducing artifacts of rainskipping than motion compensator free interpolation
methods that are used by other manufacturers and considering that both the sony adj and the energy
use the same soc naturally both their input like figures are very similar as well so
at 60 frames per second both the sony and rtj and also the adj will present an input lag of around
16 milliseconds and then with a 120 frames per second video signal the input lag will
be half to around 8 milliseconds and obviously these scenarios are calculated with game mode
engaged to achieve the lowest input lag following these i wanted to touch on a couple of attributes
which may be affected by panel to panel variation so if you look at this moving quantization test
pattern in hdr that was developed by stacy spears of spears and mansion fame all sony
oleds including the a90j and the adj generally feature brighter near black gamma and this is by
design by the company but between our 65-inch sony adj-review sample and our 55-inch a90j
to near review to a slightly brighter shade of gray whereas our atg review sample was
smoother in terms of the transition but overall it is still a bit brighter than reference and
you can see this harsher transition in this game of thrones clip this isn't really the
most pristine clip to start with and i think the harsher transition near black on the a90j just
shows true here but still you can see that because of the brighter nearby gamma on the
atg the shadow details still look compressed as well and we found that in the scene from arrival
in hdr we needed to drop the black level on the a9j to mitigate the brighter nearby gamma but
still you can see the harsher nearby transition coming through along the side of amy adams face
in terms of uniformity obviously this can vary from one panel to another but for what it's worth
both our sony adj and a90j review samples exhibited really
clean bright uniformity without any sign of the screen effect branding or color tinting
and in terms of that uniformity i would say that our sony a 90j was slightly cleaner near black but
maybe that's because of the slightly brighter nearby gamma but both will feature a very small
degree of vignetting or darkening along the size which wasn't really obvious in real world content
and in terms of the venetian blind effect this is my term to describe thin horizontal lines in
bright hdr elements i think you know because of the evo panel that is installed on the
a90j it is showing a bit more variation blind effect than the sony aatj and last but not least
let's talk about the sound quality and i think you know in this scenario it is actually affected by
the different screen size as well so in theory obviously the a90j should have the better sound
but i found myself preferring the sound on the 65 inch atj compared with the sound on the 55
inch a90j and i think that the larger screen size just allowed the acoustic surface audio
plus technology on the aatj to separate the sound better so i heard better stereo separation
a wider sound stage and on the a90j i felt that you know the sound sounded quite coned in
and muffled with slightly muddier dialogue but that may be because of the screen size
that i'm using in this side-by-side comparison and i really did try to you know mute one tv and then
listen to another to come to my conclusion here to sum up the combination of metallic heatsink an evo
panel allows the sony a90j to achieve higher peak brightness deliver more impactful hdr and brighter
day mode as well as clear up image retention quicker than the step down aatj given the choice
if i had the space and budget i would always go for the sony a90j over the adj for the best
picture quality but let's face it you know i'm probably the most anal video file that i know and
only the best will do for me some people may argue that a sensible money should go towards the adj
since the jumping picture quality from the adj to the antij is not enough to justify
the hefty price premium commanded by the antij these people may have a point but that's how
the high-end television market has always worked with the law of diminishing returns and all that
by the same logic if you really want to be sensible just get the cheapest oled
tv on the market and lga one a visio oled heck just hang on to your plasma from 10 years ago
now if the choice was strictly between the 55-inch a90j and the 65-inch a80j i'm going
to stick my neck out and say that i would choose the 65-inch aadj any day of the week
by now most of you know how i feel about size bigger is always better and a bigger screen
size will deliver greater immersion for all types of content you watch on the television
be it sdr or hdr day or night and the picture quality is close enough such that you're only
going to be missing out in some hdr scenes and during daytime viewing i would like to thank
richard sounds manchester for their help with this video if you are thinking about getting a new tv
please support this channel by considering buying from them if you like to watch some of our other
technical oled tv comparisons please click here for our playlist and i will see you in the next
video you