Rumor: PS5 announcement coming mid 2019 and more info at PSX 2019

[Pemalite]

Trumpstyle said:

256-bit bus would not be enough for native 4k resolution if we wanna have a decent graphic improvement. It's almost certain Sony and Microsoft will go for 14Gbps pins giving 448 GB/s memory bandwidth for 256-bit bus and shared with the CPU about 400 GB/s is left for the GPU. So that's why I was concerned.

512GB/s should be easily attainable on a 256bit bus by the time 2019 rolls around... Combine that with draw stream rasterization, improved delta colour compression and so on... And you can get allot of mileage out of that 512GB/s of bandwidth.

Keep in mind that the Geforce 1080Ti only has 484GB/s and is rather proficient at 4k. - That is the ballpark of next gen capability in my eyes.

Trumpstyle said:

About the performance, I don't know why you always yapping about TF performance, it's irrelevant unless Navi will be a major redesign which I seen you don't believe, we can guess that hopefully Navi will bring upwards 20% performance per/TF improvement compared to VEGA. And I expect Navi will be in both Sony and Microsoft consoles.

Because people like yourself cling to it.
It's like how "bits" was used to determine console capability once upon a time... And yet the Original Xbox being 32-bit was more capable than the Nintendo 64 being 64-bit.
But tomatoes, potatoes.

Navi is not a major redesign, well. No more than what Polaris or Vega was anyway. AMD have even stated as much as it's still Graphics Core Next based.

20% uplift whilst nothing to sneeze about, is not going to turn AMD's lacklusture GPU position around.

Trumpstyle said:

I don't know why you altered my last quote, but 4K is already happening on Xbox one X, take a look at far cry 5, red dead redemption 2 and Fallout 76 they all are native 4K, what PC does it won't matter.

It was a copy-paste.

4k happens sometimes on the Xbox One X. It's not guaranteed.
Many games employ reconstruction techniques to achieve 4k, other games don't hit it at all.. And some games employ a dynamic scaling algorithm where it's only 4k some of the time.
In short... It's not a true 4k console. It's not a native 4k console.
The fact it is capable of outputting some games at that resolution doesn't change that.

But if you don't believe that... Then you are contradicting your prior point in regards to bandwidth/resolution, the Xbox One X has significantly less bandwidth than you listed. (Though raw bandwidth numbers don't tell the whole story anyway.)