drkohler said:
30mm'2 for a three core 45nm PowerPC with all the cash ram etc.. that is VERY optimistic |
The PowerPC 476FP is 3.7mm2 in 45nm... the 30mm2 is because the eDRAM... eDRAM is small than normal cache RAM.
So it fits perfectly.
drkohler said:
30mm'2 for a three core 45nm PowerPC with all the cash ram etc.. that is VERY optimistic |
The PowerPC 476FP is 3.7mm2 in 45nm... the 30mm2 is because the eDRAM... eDRAM is small than normal cache RAM.
So it fits perfectly.
ethomaz said:
The performance showed for now is not E6760 equivalent... it's more RV730/RV740 with low clock. The RV740 fits in the power envelop... more like a Mobility Radeon HD 4860 (RV740). But can be a E6770 with really low clock (400Mhz). |
Where have you managed to find TDP for 4860? (not doubting, just wondering, since I had no luck)
And not sure what performance was shown you're mentioning....that latest rumour was putting e6760 (which is basically 6750m with embedded memory) as GPU - which is actually (more or less) comparable with Mobility 4860 / HD4770 @ 400/800 or Mobility 4830 (but with GDDR5) (comparable as in Pixel/Texture ratio, bandwith and GFLOPS). That's why I'm interested in 4860 TDP - that diagram just states RV740, so I'm wondering, if TDP allows for it, could it be fully clocked (650/1000) Mobility 4860...all this off course if RV740 is indeed inside.
superchunk said:
http://wiiudaily.com/wii-u-system-specs/ Its also talked about in neogaf by some devs. |
I'm not going to say that it's wrong or anything, but while that article has no date to know when it was posted, the first comment is from May 5th, 2012.
And also this:
Why does Nintendo need 512 MB for the OS? Which kind of OS are they using?
Sorry but it looks fishy.
Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.
JEMC said:
I'm not going to say that it's wrong or anything, but while that article has no date to know when it was posted, the first comment is from May 5th, 2012. And also this:
Why does Nintendo need 512 MB for the OS? Which kind of OS are they using? Sorry but it looks fishy. |
The article is not static. Its been changed over and over again, like my OP. The only reason I gave it any credibility was that neogaf devs have given in credibility, but its still a rumor.
Also, we know for a fact the Wii U OS has 1GB of RAM for its use only... why would having 512MB of storage be out of the question?
ethomaz said:
The PowerPC 476FP is 3.7mm2 in 45nm... the 30mm2 is because the eDRAM... eDRAM is small than normal cache RAM. So it fits perfectly. |
Why are you both arguing about eDRAM and the CPU? Its confirmed the eDRAM is on the GPU. The CPU is just the CPU in those pics. (referring to the pic with the heat spreader taken off and you can clearly see the GPU and CPU independently)
superchunk said: Why are you both arguing about eDRAM and the CPU? Its confirmed the eDRAM is on the GPU. The CPU is just the CPU in those pics. (referring to the pic with the heat spreader taken off and you can clearly see the GPU and CPU independently) |
Because most IBM Power 47x have eDRAM... and if there are no eDRAM then why the CPU is so huge... IBM Power 47x is a ~4mm^2 CPU and the picture shows a 30mm^2... if its normal cache RAM then the size for 2-3MB will be more than 30mm^2... so eDRAM with CPU fits.
But it's speculation.
superchunk said: The article is not static. Its been changed over and over again, like my OP. The only reason I gave it any credibility was that neogaf devs have given in credibility, but its still a rumor. |
Ok, thanks. I didn't know it has been updated like yours.
superchunk said: Also, we know for a fact the Wii U OS has 1GB of RAM for its use only... why would having 512MB of storage be out of the question? |
I just don't know. It's just that, to me, it seems a lot to have an OS for a console that weights 512MB. It seems to be too big.
Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.
ethomaz said:
Because most IBM Power 47x have eDRAM... and if there are no eDRAM then why the CPU is so huge... IBM Power 47x is a ~4mm^2 CPU and the picture shows a 30mm^2... if its normal cache RAM then the size for 2-3MB will be more than 30mm^2... so eDRAM with CPU fits. But it's speculation. |
WHat about a Power7 CPU with its normal cache?
ethomaz said:
The performance showed for now is not E6760 equivalent... it's more RV730/RV740 with low clock. The RV740 fits in the power envelop... more like a Mobility Radeon HD 4860 (RV740). But can be a E6770 with really low clock (400Mhz). |
superchunk said: WHat about a Power7 CPU with its normal cache? |
POWER7 L3 cache is eDRAM.
Each POWER7's core, with its associated cache, have 30mm^2.... I know a console based POWER7 could be smaller because it not need full four double-precision floating point units but an three core is to be bigger then 30mm^2 in 45nm.
The custom CPU on Wii U have to be small with eDRAM to fit in 30mm^2 and have three cores.
Edit - Thinking better a heavly customized tri-core POWER7 with eDRAM can fit in 30mm^2... you have to remove all things the console don't need and so you have a small POWER7... with normal DRAM cache I think is unlikely to reach the 30mm^2 in 45nm.