So basically, we can safe guess this much at current:
CPU
IBM Power7 TriCore Processor with "large" eDRAM pool. Comments from old sources linked to GAF (wsippel can help with this) stated these dev kits were working with a 3.6GHz Xenos part or something similar. Unknowns include clockspeeds, exact eDRAM amounts, and solid confirmation on whether or not the cores will increase (previous configurations of this chip have core arrangements in multiples of 2, potential increases for the chip to have 4 cores at final specs) or the eDRAM will be substituted for something with equal function from another source.
RAM
1GB - 1.5GB. Unknowns: Type (GDDR3/5... XDR/2 lol), Clocks, Setup (discrete memory pools versus unified memory pool), and chances of Nintendo pulling a Nintendo and throwing some RAM on that bitch to make it a rounded 2GB. (Logically, potential for this increases due to Nextbox coming around the same timeframe if rumor holds and Nintendo aiming more for parity with upcoming systems. This
is Nintendo however...)
GPU
AMD RV700 (specifically RV770) Baseline; Mentioned numerous times intially to be a Radeon HD4830 (640SPU part) potentially used to emulate the baseline featureset of the final silicon. Was the cause for initial overheating and crashing/freezing of alpha/beta/"I don't have an actual fuck what number model this one was" dev kits and the source for many "headlines" stating Wii U was facing issues in development.
Unknowns: Tweaks to the baseline that make it more suitable for console space (this also includes tweaks that may come from later series cards, a smaller fabrication process - 28nm or 40nm versus the 55nm that the OG 4830 was created upon), clocks, memory amount and type (should discrete memory pools be used)
General Pondering
- Chances are higher for a single unified memory pool that discrete pools due to both benefits on overall system performance and ease of development with. Chances also strengthened due to earlier reports of the dev kits being Xbox360 like to facilitate fast and optimal development with an easy architecture to use and understand from the get go.
- GDDR3 vs. GDDR5 boils down to issues with memory latency versus efficiency. Nintendo likes their parts to work for a given performance and depending on their priorities with regards to keeping the system efficient as a whole or allowing it to work with more, they can swing one way or another. Other issues that can be pondered regard heat generated by the two types of memory versus dissipation methods & bus sizes (128bit GDDR5 clocked at the same speed as 256bit GDDR3 yields the same result assuming similar clock speeds between the two).
- More Than Rumor: There was a smaller memory providing company being backed entirely by Nintendo's contract for their specific type of memory. Note that this might not be applicable to main type as the detective work shows the memory could be the 1T-SRAM Nintendo has been fond of from the Dolphin days but said RAM is STUPIDLY expensive for the purpose of main RAM in a system. (What function would it serve?)
Question(s):
- I take your word for it that at current Wii U doesn't have 2GB of memory in kits lherre, but just for the sake of keeping the mind active, have the kits been receiving increasing amounts of memory or modifications to the memory type in between revisions?
- There was a strong hint earlier in all the speculation at the system being a CPU/GPU on a chip/die (the exact specifics here elude me) in a vein similar to 360 Slim's revision of the 360's CPU/GPU and RAM. Is there anything now still hinting at a customized silicon foundation like this being the core of what makes Wii U tick?
I got bored and tried to make a easy to digest catch all detailing as much as I could understand on Wii U as I could for newbie's sake, mostly because of a lot of the stuff getting thrown around in the Xbox 3 threads. Some of the more knowledgeable members can take it and roll with it or point out where I'm wrong, but as I'm interested in seeing Wii U for what it is, I hope I'm not too far off with my post and thought processes.