I figure if you're going for two generations on with the microarchitecture, you probably wouldn't be too worried about the same bus. XSX gave no fucks about the X1 basic memory bus setup.
I think this is about a shrink and maybe a slight bump (think Xbox 1S) rather than a mid gen turbo machine!
How so?
320 x 14 / 8 = 560
256 x 18 / 8 = 576
What's your maths on this on? I think the 560 is a decimal figure, not binary. Same with Sony's 448.
320-bit was the
only way to get 560 (decimal, not binary) GB/s.
Big Navi will be interesting for sure! In its favour, it doesn't have to share with a fast Zen CPU. I also think they might push for 16 gHz / Gbpp memory on some models, and enthusiasts will try and overclock too. Think it will still be memory bound quite a bit though.
The 72 CU salvage parts might be a really good balance though. Kinda like with Vega 56.