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disolitude said: All this is fine and correct when it comes to PC GPUs but not how things are set up to work on Xbox One. The Xbox One will have 68GB/sec of bandwidth between the CPU/GPU and RAM. Also the GPU will have 102GB/s of bandwidth to a local 32MB SRAM cache, and another 30GB/s of bandwidth to gamepads, Kinect, and other peripherals. Even PS4 isn't as simple since on the PS4 side, you have 176 GB/s between CPU/GPU and everythign else. 7850/7870 have around 150 GB/s if I remember correctly, but that is only for the GPU. PS4 has to share that bandwidth between everything. Here is an example of how Xbox 1 will work at maximum load (1080p@60 fps) - http://www.vgleaks.com/durango-memory-system-example/ There is way more shit going on here that... RAM speed + Bandwidth + GPU cores |
What did you are talking?
You can't sum bandwidth dude... and 176GB/s is for GPU and CPU in PS4... they use the same memory controller... they share the bandwidth and memory... CPU didn't use 10GB/s bandwidth... 90% of the PS4 bandwidth is for GPU.
The bus for gamepads, EyeToy, peripherals is other in PS4 too... in every other consoles or PC... we are talking about Memory bus and not peripherical/gamepad/kinect bus lol... theses guys didn't access the memory... they do requests to CPU via NorthBridge... they don't have direct access to memory or the memory controller.
And you are not reading the VGLeaks diagram in the wrong way... the PS4 diagram is similar to that too.
And stop with bullshit 102GB/s... only 32MB of eSRAM can be access in 102GB/s... the main bus is 68GB/s shared for all.
