1440p != 2k. 2k screens are very uncommon, FullHD is much closer to 2k than WQHD.
If you can't see a difference between 4k and FullHD source on a 4k screen, then: a) you are blind as a bat b) you're sitting way too far from the screen, no matter what size the screen is (to some extent). Btw. your "2k" sample is not even close to "2k" (3383 × 1440 pixels @ 100% quality and 4,3 MB file size, while the 4k sample is @ 90% and 1,1 MB file size)
D'oh!
Once again, it's an upscale. Why are you mixing and comparing two different things, details and resolution?
the fact you noticed plastic effect is interesting : it can depend on my noise-remover settings during the upscale process because I raised this settings a lot because of the original quality of the first renders. I used the same setting for this one too.
Maybe it wasn't optimal.
another zoom-in example :
View attachment 723576
In the original picture attached, the face looks focused.
You did a zoom in with my picture and compared with your beautiful picture , that's not fair dude
. Plus like someone else said, that's just an upscale not an original picture rendered in 4k. I'm not pretending doing miracles, just enhance renders a little bit as best as I can.
I'm confused, i thought you've got a 4k screen because of replying to my poll. If not , it's normal that your feedback are biased
(Me too with my 1440p screen)
That's why I said in my first post that the most people don't know that some TVs labeled as 4K don't give you a 4k image in full size, because of the TV size, it's a marketing strategy. 4K means 2160p, that is the double than 1080p. So, if I have a 1080p TV of 37", which gives me full 1080p definition, a 4K TV should be the double at least, 74".
Look, I have a 47" 4K curve Samsung TV. I observed there both sample images that I shared, the 4k one and the 1440p one, and I tell you both images look perfectly defined. There's no significant diferences, because none of the images lacks definition, both are completely nitid. I can watch 1440p with almos full definition in my 4k TV because the TV isn't that big. But, in a 75" 4K TV the 1440p will lose significant definition, and the 4K image will not lose anything, then you can perceive significant differences.
Something else, besides the resolution and definition, there's HDR, which is relative to colours. Something that my 4K TV has. I put it in this way, I perceive more differences between a 4k HDR image and a 4K image, than a 4k image and a 1440p image. The thing is that not all 4K movies or videos have HDR. But when you watch something in HDR the experience is marvellous, the image is richer in colour tones, the three dimensionality increases, the image has more depth. That's the principal quality of my 4K TV, but HDR (high dynamic range) has nothing to do with resolution or definition, it's about colours, lights and shadows.
I understand that you
F4iunyl3x are trying to upscale 720p to 4k, and you certainly increased the definition. But I'm being honest here, you didn't reach the definition of a 4K nor a 1440p in the first images you showed us, so you shouldn't call them 4K nor 1440p images, I think that you don't even reach the definition of a 1080p in none of those first images, despite of the resolutions they have. If you give us an image that hasn't the 1080p definition and sell us as a 4k image, it's like you were cheating. I understand that it could be very difficult, but you shoud go step by step, based in the first images that you shared, you are far away of achieving a 4k image. That's why I compared your upscaled images to those standard 4k images I found in the web. I used my 1080p TV and not the 4K one for that, because is the TV that I have connected to the PC, but it doesn't matter really.
Edit: In my previous post I didn't notice that the forum didn't allow me to upload the sample image in 4K, the original resolution is 5000x2160, and was converted automatically to a lower resolution. It seems that you can't surpass 3840 here. But still I did the test with the original images and there are not significant differences between the 1440p image and the 4K image in a 47" 4K TV.