Digital Foundry: The Complete Xbox One architects Interview

[BHR-3]

drkohler said:

I still can't figure out their memory bandwidth numbers and data path layout by that interview.
A lot of extremely obfuscating descriptions and weird logic in that context (I could also say he is downwright lying at some points but maybe they have invented/implemented completely new technology). In my books, the maximum theoretical bandwidth is 149 (or 178?) GByte/s, but it's been 30 years or so since I designed memory controller circuitry...

xb1 can do more than ps4 140-150 from esram plus 50 55 from ddr3 equals 190-205 it has been confirmed from the last digital foundry XB1 artcle before this you can add both together

Digital Foundry: So 140-150GB/s is a realistic target and you can integrate DDR3 bandwidth simultaneously?

Nick Baker: Yes. That's been measured.

 

from other article

You can add that to the external memory and say that that probably achieves in similar conditions 50-55GB/s and add those two together you're getting in the order of 200GB/s across the main memory and internally."

So 140GB-150GB is a realistic target and DDR3 bandwidth can really be added on top?

"Yes."

۞ by AGBLeaks