I think the PS4.5 wont run games at 4K but 3K

[HoloDust]

MortienGerrux said:
As a 4K TV owner and 4K gamer, I can tell you, anything else then full native 3840x2160 looks like somebody smeared vaseline over your TV. I've tried 2560x1440 and 3200x1800 and they still don't look remotely close to real 4K.

It would rather be smart to focus on 1920x1080 60FPS first.

I really don't expect to see native 2160p in 9th gen if they want the same kind of jump as in 7th to 8th gen (after the resolution bump) - best case scenario I see as viable solution is 1920x2160 anamorphic with some really good hardware upscaler.

MortienGerrux said:

HoloDust said:
Your math is correct, it's just that it doesn't work that way - real life benchmarks are showing that you need 3x GPU for 1080 to 4k UHD jump (which is 4x pixel count) with same settings.

Also, that resolution is way too weird, choices are 2560x1440 or 2880x1620.

3x is a little too much.

To be able to run games at 4K locked 30FPS with the same settings, the PS4.5 would need to atleast have a R9 380/R9 380X or prefereably a R9 390.

Actually, if you check Anandtech Bench, you mostly see 3x difference on the same card between 1080p and 2160p (it's much more obvious in nVidia cards, AMD GPUs tend to underperform in some of tests) - also, 390X tends to have somewhat lower framerate in 2160p then 7850 in 1080p, even with more then 3x TFLOPS (though not 3x MPixels/MTexels per second).

Ruler said:

HoloDust said:
Your math is correct, it's just that it doesn't work that way - real life benchmarks are showing that you need 3x GPU for 1080 to 4k UHD jump (which is 4x pixel count) with same settings.

Also, that resolution is way too weird, choices are 2560x1440 or 2880x1620.

thats because 4k takes 8 million pixels, 3k takes 4 million pixels which twice more than 1080p

Yeah, it's just that it's quite silly resolution, whereas 1440p to 2160p is 1.5x per axis and 1620p to 2160p is 1.33x per axis - both better for upscaling.