8K X is great, in native mode, generally @SweViver said in some videos, that 8K X was a little better than Reverb G1 and 8K V slightly below Reverb G1, but at least my 8K X when I put it in “upscaled” mode is worse than my 5K +, is there any setting to do? The image also seems disturbed … any advice? (Graphics card I use Gigabyte RTX 3090 OC)
2 Likes
I seem to recall that there was a number of users who reported that the upscale mode doesn’t perform well on the 8KX, producing a inferior image quality as compared to e.g. the 8K+. Seems that the Upscaler chip has difficulties to do the job properly. I myself hoenstly have not tried once - why would I bother to get a headset with native feed to 2 x 4K screens to then go for an downscaling/upscaling mode. I can live with the 75 Hz refresh so I personally don’t see any good purpose for it. Games like Eleven Tabletennis are more fun with a less bulky, better attached headset (the 8KX doesn’t fit my head very well, it feels a slight bit loose no matter how I try to fix it - completely fine for seated VR though).
my first question: why you want to use the 8KX in upscale mode when you have a 3090OC?
1 Like
Some things works better at higher refresh rate and for some it is worth sacrificing a little visual fidelity for while still being able to enjoy the 8k x at higher quality in games where that is appropiate for them.
2 Likes
I would imagine that the upscale mode has only an advantage in that it takes less bandwidth from the GPU to the headset for one frame, so you can up the framerate. Otherwise, you can easily “upscale” the image on the GPU (with most likely far better quality), but then you need to feed full 4K (x2) to the headset and can only go with the framerate so far.
1 Like
Upscaled it currently running at 114 hz only, I’m not sure how much bandwidth or gpu is actually saved.
1 Like
Even with 3090, some native 4K gaming is heavy. Or on some 75Hz games they are few. But apart from that, why does a 5K + actually look GREAT better than an upscaled 8K X? And how did @swiviver say it looks better than the Reverb G1? With which drivers, which firmware? I would like to have slightly lower visual quality and have more resources on the PC, but the quality here is bad! I repeat the old 5K + is really superior, putting the same resolutions between 8K X and 5K + (supersampling). Is mine likely to be faulty?
1 Like
I only have a 2080 rented from a friend to test my 8kx in native mode. Need to wait until Christmas to use my 8kx again, when i have enough money to buy a 3070. or maybe I can win a 3090 here… Thats why I am doing the 8KX event.
Anyway… maybe there need to be a software update for a better upscaler? does someone have checked it if there is a huge difference between 5k+ and the 8kx upscale?
Yes I am pretty sure about this.
My 8k+ have a similar image sharpness as the Quest 2 which is miles away from the 5k+.
So the upscaled mode on the 8kX is broken, for sure.
1 Like
yes, don’t buy 8K X for upscaled. Go to 5K+ … at the moment don’t work well i have 8K X e 5K+ (u can find from someone, dont buy new).
Did you install the Pimax Experience so it makes all the Steam adjustments. For me it makes a massive difference in upscaled.
3 Likes
i use 086V7 and .70 (and firmware that i find on nextvr youtube video)
Was not 8K-X supposed to use the same upscale algorithm as 8K+? I mean 8K+ is also upscaled, so I would understand if the upscaled headsets (8k-X and 8k+) look worse than the native headsets (5k+) for the QHD signal, but having a difference between 8k-X and 8k+ does not make sense.
Worse?
No please, this is already what killed the 8k, it doesnt look worse, its smoother maybe (and I dont think any of you turn anti-aliasing off to get the native signal of a game in any case ), but no worse. This is how and why I was insulted because I enjoyed my 8k, like what I was stupid to like something “worse”…
Ask anyone if the Quest 2 look worse, it have pretty much the same image as my 8k+.
No sense for the X and + not looking the same…yeah but why not, the upscaled mode on 8kx could have been rushed or misshandled (since some people think “worse” about upscaler they didnt give it much attention maybe).
Or since I have a early 8k+ model, it is not the same as the Visions…
And same for my 8k, it was one of the firsts, I think I made the first review here about it.
Pimax 8k (original) was not a native headset. It used an abomination of 4K panel with effective half resolution. Pimax 5k+ is a native for what concerns QHD resolution and I believe that any non-native panel cannot look better (or in other words could look worse), simply because of the nature of scaling. It is not possible to scale an image 1.5x (in each direction) without losing precision. But I do not have 8k+ or 8k-X to compare, so this a hypothesis based on the math.
Now, I can imagine that the upscaled image on 4k panel may look “softer” or be more pleasing, but cannot have more detail.
With the right settings I lost my mind trying to explain it here this is how the 8k looks compared to the 5k+
Does this seems to come from an abomination panel?
No it dont, it’s just that the 8k didnt need the same settings as the 5k+.
And it looks better in the headset.
Even Tyriel said it, I discovered this a few weeks ago only, link is set to just at the moment he says he prefers the 8k to the 5k+.
Reading text is not everything and the 8k had a better visual for racing and flying and pretty much everything else but reading simulator.
But about the 8kX upscaled (downscaled actually) mode if people expect to get the same visuals as in native there is no way they gonna be happy, but unless it have some issue, no way it get worse than the 5k+.
Hello,
Maybe you should try the Pimax Experience to have an advance setting for the upscaled mode, and gonna ask @SweViver to share some tips while using upscaled mode.
Sincerely.
1 Like
If you feed different quality signals to the headsets then the discussion about the quality of the upscaling is no longer relevant. In other words, bad quality in 5k+ and good quality in 8k can make 8k look better. But it is totally different from what I am saying, which is:
If you feed the same signal into native QHD headset and upscale it to 4K you lose precision (or detail). You have to, because this is how the upscaling works. If the upscaling happens on 8K this has to be even worse, because 8K display has a half of subpixels what normal 4K should have.
It is possible that the loss of detail can be perceived as an advantage, I do not know, but this is highly subjective and depends on the settings, type of the image, etc. Maybe you prefer the diamond matrix over the full RGB square one, or you prefer color temperature better, or you render the image at higher resolution to get better antialiasing, etc, but this does not have anything to do with the upscaling.
I tried .086 v7 pitools … now it works better, you can see better, I can keep 90 Fps on Assetto Corsa Competizione, 10-11ms with a resolution of almost 4000pixel. The image is good, until recently I saw it worse, it almost looked like an old VHS! Now it is perceived that it is “upscaled” but the image is very good.
I detached pitools 0.86v7 and put it back. I have not touched any settings other than trying to put “upscaled” to 114Hz, yes the image is now good. Definitely improved.
1 Like