The evidence that Xenon Block Diagram is a fake.

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Deadmeat5

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I am so shocked that people here take that Xenon diagram seriously, when it is so obviously a fakery. Let me point out what's wrong with this thing...

xbox2_scheme_bg.gif

1. CPU clockspeed : 3.5 Ghz?? So obvious it's a fake.
2. (7) 33.2+ GB/s read bandwidth : Since when the GPU core directly reads L2 cache from CPU???
3. (6) eDRAM bandwidth : 64 bit color and Z??? Why such an overkill for a console? ATI would have disabled this feature for XGPU2 even if R500 had one to save a few transistors.
4. (5) GPU performance overview : Max Throughputs Per Cycle : 1 vertex, 1 triangle, 2 pixelquads per cycle???? Is this supposed to be a R500 or Flipper Turbo???

I suggest others to look into it and find the hints of fakery....
 
I am not saying the picture is true, but your points are a bit weak.

2. (7) 33.2+ GB/s read bandwidth : Since when the GPU core directly reads L2 cache from CPU???
At the very least, ever since Nintendo Game Cube was released.

3. (6) eDRAM bandwidth : 64 bit color and Z??? Why such an overkill for a console?
You might want to read up a few graphical papers to see why high precision framebuffers are usefull. It's most certainly not overkill. (128bit color might be, although I am sure noone would complain if the option existed).

4. (5) GPU performance overview : Max Throughputs Per Cycle : 1 vertex, 1 triangle, 2 pixelquads per cycle???? Is this supposed to be a R500 or Flipper Turbo???
You just said it - this is a console. 4+ GPixels sounds like plenty to me (8+ for stencil operations) - given the rather high shader throughput also indicated by the diagram, it should really be plenty.
 
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At the very least since Nintendo Game Cube was released.
Flipper reads Gecko's L2 cache???

You might want to read up a few graphical papers to see why high precision framebuffers are usefull. It's most certainly not overkill. (128bit color might be, although I am sure noone would complain if the option existed).
Would you rather have a 64-bit color or 2X resolution???? You can't even tell GC's 24-bit pixels and Xbox's 32-bit poxels apart on NTSC TV set...

You just said it - this is a console. 4+ GPixels sounds like plenty to me (8+ for stencil operations)
Not if you are running cycle-burning pixel shaders. You certainly can't do XNA or nV40 demo stuffs with a spec like this...
 
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