XBO has 204 GB/s from ESRAM+68 GB/s from DDR3=272 GB/s peak bandwidth vs 176 GB/s for PS4. So, 54% more peak bandwidth.
But since it has less flops, XBO has 272GB/s/1.31TF=~208 GB/s/TF.
PS4=176GB/s/1.84TF~96 GB/s/TF/
So XBO has ~117% more peak BW per FLOP. Much more of an edge than PS4 has in FLOPs.
I believe this is very underreported. Everybody is focusing on the big spec PS4 is better in (flops) and ignoring this.
Please dont even say the tired old YOU CANT JUST ADD THEM. The FACT is the XBO GPU can read from ESRAM and DDR simultaneously, so it's actual fact that YOU CAN JUST ADD THEM. Of course it wont always be that simple, but in general it will be. You will just load 32MB of critical, bandwidth consumption heavy data in the ESRAM and keep reading/writing to it taking a huge load off the main bus. Yes this will be more difficult to program.
This is the same as X360 had half the main bandwidth of PS3, but still often outperformed it in particle effects and resolution (bandwidth sensitive paramters) due to 10MB of EDRAM.
So yes, bottom line, One machine is a FLOP monster, the other machine is a BW monster.
