HappySqurriel said:
| Aielyn said:
What am I talking about? Look back at the RV770 chip for a moment. The centre of the chip has all of the main GPU stuff, and then there's some stuff around the edges, most of which is easily identified.
Now look at the Wii U's chip. Yes, there's the eDRAM, etc, on the left. And they've identified a heap of things on the right... but the odd part is all of the unmarked area. About a quarter of the entire chip is entirely unaccounted for, including a huge gap near the centre. There are visible details, so we can be fairly confident that it's not just empty space. So what is it? What hasn't been identified, and what impact does it have on the system?
I don't suppose anyone knows if there's an equivalent die image for the Wii's GPU, for comparison?
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I'm not much of a hardware guy but I suspect what is marked as "ARM(?)" and "DSP(?)" is likely the Wii's CPU/GPU ...
Knowing Nintendo, if I was to guess what the unmarked sections were I would expect them to be instructions designed to increase the over-all efficiency of the system. I don't want to speculate too much, but I would expect Nintendo to do something like increase the number of tessellation units on the GPU (or something of that nature) which wouldn't increase theoritical performance but could result in better real-world results if used well.
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Nope, they're interfaces.
The CPU is in another die. This is the GPU alone.
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