Adinnieken said:
Not to burst anyone's bubbles over this, but the Xbox One incorporates its own technology as was explained back at the architectural panel at the Xbox One reveal:
Archtectural Panel Video
"we have to invest a lot in coherency throughout the chip, so there's been io coherency for a while but we really wanted to get the software out of the mode of managing caches and put in hardware coherency for the first time on the mass scale in the living room on the gpu."
-->hUMA is AMD's definition of a unified memory implementation with certain features. It seems Xbox One has the same features implemented but they just don't call it hUMA due to the extent of customization of the chip.
The Verge:
"The AMD chips inside the PlayStation 4 and Xbox One take advantage of something called Heterogeneous Unified Memory Access (HUMA) "
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MS needed to create your own tech because I can't see the hUMA that AMD implemented working together with eSRAM and DataMoves... it's not only CPU and GPU accesing the same data pool in memory... it's CPU, GPU and DataMoves accesing the same data pool in memory or eSRAM.
The MS solution seems to be more complex to be implemented than the AMD hUMA.
