SvennoJ said:
Intrinsic said:
I am curious...... so all it took to support 4K mdeia playback was a 7% boost in GPU, a bump in EDram bandwidth and probably the inclusion of HDMI 2.0?
And all inclusions still putting it all round below the PS4 in performance. So does this mean that the only thing preventing the PS4 from doing HDR and 4k media playback in HDMI 2.0?
And another thing, there has been a lot of talk about the existence of the Neo or even the scorpio being due to an inability to shrink the APUs found in the PS4/XB1 down from 28nm to 14/16nm.
But here we see a 16nm APU in the XB1s? Interesting........ |
The 7% boost or higher clock speed and memory bandwidth was needed to absorb the extra cost of rendering to a HDR output buffer, 10 bit instead of 8 bit.
HMDI 1.4 also supports 10 bit (and 12 bit color) however not HDR 10, the new format used by 4K tvs for HDR. The ps4 and original XBox One could already output games in 10 bit (and 4K 30fps), yet without the extra brightness range that HDR allows. HDMI 2.0 is needed for HDR. (And HDCP 2.0 DRM for video content)
The 20nm planar die shrink failed. XBox One S is now using 16nm finfet which keeps the cost up for now. The release of the 500GB model is likely delayed due to very low to no profit margins, get the hardcore to buy the profitable 2GB model first. Perhaps the slight increase in clock speed is also to compensate for any low level differences between planar and finfet architecture, but that's pure speculation on my part.
Anyway it's good news for the price of the Neo. Without the esram its gpu shouldn't be much more expensive than the 16nm redesign in the XBox One S. Maybe even cheaper as it's a standard component. Neo is partly due to the die shrink problems, we should have cheaper slims already and the relatively higher cost of the delayed slims worked in favor of a mid gen refresh.
|
Oh ok thanks that makes much more sense now.
But this brings me to another question.....
If sony is going first with the Neo, does that mean they keep making the base PS4 at 28nm? and for how long? Cause I'm guessing they go with the Neo for now then eventually do a 16nm version of the core PS4 APU further down the road.
