It is so easy to understand...
- 63 GB/s to a 1.3TFs GPU is not enough = MS worked in that bottleneck adding a big and fast cache (eSRAM)... 1.3TFs GPU is not enough to reach 1080p in mid to high graphic quality.
So that's why games like GoW4 and FH3 run at ridicously high graphical settings in comparison to similar spec PC's? For example, Gears 4 and it's Ultra shadows.
- 320GB/s is more than enough to a 6TFs GPU... there is no RAM bottleneck here... no need cache... 6TFs GPU is not enough to 4k mid to high graphic quality.
Based on what? The only evidence you have is that the games which have been said to be running 4k (1st party) already run at comparitively high graphical settings to what a similar spec'd PC would do. Even in crazy maths land. The GPU alone has 4x the power, so in a high-level aspect it should be possible to run games like Gears and FH at 4K. Then you have the ability to upgrade the assets for 4k based on the extra RAM and BW.
If MS was smarter when projected XB1 they could chose a better RAM bandwidth (GDDR5?) and not use eSRAM... so make a chip with more GPU power, more ram bandwidth and optional mid to high 1080p power... ohhhh Sony did that.
Sony got very lucky with GDDR, this is a known thing. There was the fire in the production factory where DDR was mostly made which knocked back the entire supply for DDR. Sony nearly got lumped with 4GB of RAM compared to 8GB on X1. That would of made things a bit more interesting. They were lucky to even have the supply of GDDR to be able to put 8GB in there.
About your Titan comment... no console has a price and some drawn power limits... a bigger chip than ~320mm2 is really something Sony and MS wants to avoid at all costs at the point both put what they could in side this chip at launch and Sony put at could in the Pro chip right now.
Well that's funny, because both X1 and PS4 have chips over than 320mm2. The X1 had a stupidly over-sized heating solution and a absurdly large die space... all wasted by esRAM.
"Your GPU bottlenecks are often caused by not enough available throughput in RAM, especially at 4K" what you described here is RAM bootleneck and has nothing to do with GPU bottleneck... GPU bottleneck is when the GPU holds the render to reach a high level... in this case the 6TFs GPU holds the render to reach 4k in mid to high quality while there is RAM bandwidth enough for GPU and CPU (320GB/s... it is indeed overkill for 4k).
You're forgetting the exponential loss of RAM BW when the CPU is doing operation. Something people forget about with the PS4. A RAM bottleneck has nothing to-do with a GPU bottleneck? Ok then...
If I hate or not Scorpop won't change the actual delivery of it specs.
I'm surprise how your posts is full of crazy claims without any technical base.
Should be saying that to you pal.