If there is a second CPU (I'm not suggesting there really is one because I am highly doubtful) I would expect that Nintendo could have included the Wii's CPU and GPU for backwards compatibility.
| superchunk said: Added the rumored 2nd CPU for Wii U that is ARM based and solely for the OS. Edited for clarity. |
This rumour contradicts pretty much everything I see on the pictures of the WiiU board. I give this rumour a 0.% chance of being true (unless the bottom of the board contains _a lot_ of stuff).
drkohler said:
This rumour contradicts pretty much everything I see on the pictures of the WiiU board. I give this rumour a 0.% chance of being true (unless the bottom of the board contains _a lot_ of stuff). |
Look at that board pic, can you tell me exactly why it contradicts the 2nd ARM cpu?
| HappySqurriel said: If there is a second CPU (I'm not suggesting there really is one because I am highly doubtful) I would expect that Nintendo could have included the Wii's CPU and GPU for backwards compatibility. |
This makes some sense assuming rumor is true.
If is is for the OS, perhaps the only reason its there is so the main CPU ansd GPU focus on gaming only, nothing to do with some hidden trick up their sleeve.
| HappySqurriel said: If there is a second CPU (I'm not suggesting there really is one because I am highly doubtful) I would expect that Nintendo could have included the Wii's CPU and GPU for backwards compatibility. |
WiiU already has full backwards compatibility. Why would they need to add Wii's actual hardware?
superchunk said:
Look at that board pic, can you tell me exactly why it contradicts the 2nd ARM cpu? |
Where is it? Where on board are the traces of the address bus/data bus leading to this mystical CPU? Notice that ALL traces go to the large chip labeled "GPU" on the images. There are problems in themselves with the two labels (there are no bus traces visible going to the chip labeled "CPU"), but unless we get better pictures, these we have are just not good enough.
Also remember that the WiiU uses an average 40W (as per Nintendo). That is pretty low for driving a 45nm 3GHz (I'd guess the real clock rate is lower) CPU, an advanced 45nm GPU, another (?nm ?multicores) Arm CPU, 2G Ram (and supposedly there is a DSP making the sound as per rumours). The power envelope currently does not fit the list at all.
| superchunk said: Added the rumored 2nd CPU for Wii U that is ARM based and solely for the OS. Edited for clarity. |
awesome if it is truth.
34 years playing games.
| drkohler said: Where is it? Where on board are the traces of the address bus/data bus leading to this mystical CPU? Notice that ALL traces go to the large chip labeled "GPU" on the images. There are problems in themselves with the two labels (there are no bus traces visible going to the chip labeled "CPU"), but unless we get better pictures, these we have are just not good enough. Also remember that the WiiU uses an average 40W (as per Nintendo). That is pretty low for driving a 45nm 3GHz (I'd guess the real clock rate is lower) CPU, an advanced 45nm GPU, another (?nm ?multicores) Arm CPU, 2G Ram (and supposedly there is a DSP making the sound as per rumours). The power envelope currently does not fit the list at all. |
Very good points. I'll still leave it as rumors considering the many neogaf devs that mentioned it. Though, you have to remember we have only seen one side of the board. (btw, the gpu and cpu are on the same large MCM substrate you see in the pics)
The 2nd CPU is probably impossible based in the pictures of the WiiU board... there are nothing in the picture to support a 2nd CPU but I will check more details.
Anyway I found that in B3D.
https://josepjroca.wordpress.com/2012/10/11/nintendo-revela-las-tripas-de-wii-u-ii/
https://josepjroca.wordpress.com/2012/10/12/nintendo-desvela-las-tripas-de-wii-u-iii/
The dude did the diagram based in the board pictures.
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