For one, I think the chance that Project Cafe isn't a unified memory architecture is basically zero.
For one, I think the chance that Project Cafe isn't a unified memory architecture is basically zero.
This specs are so badly fake, 512MB for the ram? 1024 for the Vram? And on top of it Edram?
It's a bad joke...
This specs are so badly fake, 512MB for the ram? 1024 for the Vram? And on top of it Edram?
It's a bad joke...
Yes, that's true, but do you really think Nintendo was able to completely re-implement the entire Direct X APIs with all of the nuances used by game engines?
For one, I think the chance that Project Cafe isn't a unified memory architecture is basically zero.
Well it doesn't look bad aside from the fact that they'd never go for a mechanical HDD. Wouldn't the ED-RAM be too small if they're targetting 1800 by 1000 est for the four screens in addition to up to 1920 by 1080 for the main TV screen?
GDDR itself already has quite a bit of added latency compared to regular DDR. In addition to that the memory controller will be out-of-(CPU)die sitting in GPU further increasing latency. IIRC XB360 has several times worse memory latency than P4 had.A new-gen FlexIO from Rambus could allow the CPU to access the GDDR5 without much latency
Again, the console was supposedly developed within close contact with X360 and PC developers. Even if the eDRAM doesn't make much sense if we're thinking about building a balanced system, that objective may not be Nintendo's main purpose for the new system.
If the purpose is to attract AAA developers from X360, then sticking some eDRAM in there could be a demand from those developers.
Besides, the RV770 has ~960M transistors. The additional 16MB eDRAM would be what? Another 80-100M?
And how many transistors would it lose for switching to a 128-bit memory controller? ~30M transistors?
At 32nm, a ~1000M trasistors custom RV770 with 16MB eDRAM and reduced memory channels to a 128bit bandwidth would still take less than half the die space of the original RV770 (<100mm^2?).
Again, the console was supposedly developed within close contact with X360 and PC developers. Even if the eDRAM doesn't make much sense if we're thinking about building a balanced system, that objective may not be Nintendo's main purpose for the new system.
If the purpose is to attract AAA developers from X360, then sticking some eDRAM in there could be a demand from those developers.
Besides, the RV770 has ~960M transistors. The additional 16MB eDRAM would be what? Another 80-100M?
And how many transistors would it lose for switching to a 128-bit memory controller? ~30M transistors?
At 32nm, a ~1000M trasistors custom RV770 with 16MB eDRAM and reduced memory channels to a 128bit bandwidth would still take less than half the die space of the original RV770 (<100mm^2?).
I think you're missing the point of ED-RAM here. It isn't specifically just about portability from the Xbox 360. The reason why ED-RAM makes sense is in a power efficiency and board cost/complexity for a given level of performance.
When it uses more power to move data than it does to actually do the calculations, anything which can localise that data better will either improve efficiency or improve performance or both.
So if they were going to go with a decent level of ED-RAM on their console they could follow Microsoft's lead for one and only use one memory bus for the whole system, just as we saw with the Xbox 360. They could even go with a relatively basic DDR3/4 memory interface with something paltry like ~30GB/S bandwidth. It'd scale with what the Xbox 360 has quite nicely given a slightly higher level of performance.
I'm not sure where you took the "1800*1000" for the controller screens. It's supposed to be 1920*1080 divided into 4 equal rectangles, so 960*540 for each of the 6" screens.
Regarding the HDD, it's a developer platform and not the home console itself. I wouldn't be surprised if these have a hard drive too, instead of the 512MB flash memory.
900 by 500 is a common resolution and form factor for a screen that size. I just went with that.
Anyone know a company that has started to manufacture XDR2 ? Rambus is fabless.
The GPU is really underwhelming if true.
I think you're missing the point of ED-RAM here. It isn't specifically just about portability from the Xbox 360. The reason why ED-RAM makes sense is in a power efficiency and board cost/complexity for a given level of performance.
When it uses more power to move data than it does to actually do the calculations, anything which can localise that data better will either improve efficiency or improve performance or both.
So if they were going to go with a decent level of ED-RAM on their console they could follow Microsoft's lead for one and only use one memory bus for the whole system, just as we saw with the Xbox 360. They could even go with a relatively basic DDR3/4 memory interface with something paltry like ~30GB/S bandwidth. It'd scale with what the Xbox 360 has quite nicely given a slightly higher level of performance.
900 by 500 is a common resolution and form factor for a screen that size. I just went with that.
A GPU 6->7x more powerful than the one in X360 is "underwhelming"?!Anyone know a company that has started to manufacture XDR2 ? Rambus is fabless.
The GPU is really underwhelming if true.
What kind of GPU are you expecting?!
The pic is pretty clearly fake, but IF it was real that would be a very powerful GPU, Radeon HD4890 level. Far more powerful then anyone expected until recently and still more powerful then most people are expecting now. In fact its the kind of performance you said you were hoping for earlier in this thread..
Agreed.If the stream feature is true then I'd only expect to see reasonably simple graphics (maps ect) being pushed to the controllers while the main TV is in use for gaming. With full quality graphics being usable on the controllers if the TV isn't in use for gaming. In that scenario that GPU would be more then enough to put 360/PS3 to shame.
If the system can do what you're suggesting, then I hope its only an option for developers. I'd hate to see every developer having to limit the graphics in their games just to allow for the possibility of 5 people all playing at once on their own screen in one room..
From what I understand edram doesn't really do much besides holding a (mostly) write-only render target with added "free" MSAA. With enough vram bandwidth those can be emulated trivially.ToTTenTranz;1555054I'm [B said:suggesting[/B] that in this case, eDRAM might be there just to achieve easier ports from X360
I guess with 4 controllers you will only ever need to render no more than 4 images. I doubt there will be a option for running a game on the main screen and stream a game to the other 3 controllers.
But assuming devs are forced to make a game playable on all 4 controllers at the same time, would that really be such a big issue? Would it be very different that lets say games that currently allow 4 player splitscreen? The screen is much smaller, resolution lower and you can lower image quality.
Than again I still wnder if Nintendo is really going to put so much time/effort/money in a feature that while sounding really cool in reality isn't going to be used that much. How many families are out there that only have 1 tv? I the case of families I'd wager that most consoles are probably hooked up to a second tv.
Also, who's going to buy a home console just to end up gaming on a small screen? might as well buy a handheld then.
Funny thing is: if the console were to really have a RV770 with dedicated 1GB GDDR5 using a 128-bit bus, it would still render two 1080p screens faster than a X360 could render one 720p screen.
How exactly can they emulate the 223GB/s bandwidth for framebuffer?From what I understand edram doesn't really do much besides holding a (mostly) write-only render target with added "free" MSAA. With enough vram bandwidth those can be emulated trivially.
What's the point of this? Are they releasing a console or a set of four handhelds?
Local coop may be a nice gimmick, but that screen makes the controller clumsy. If I were in the market for a *console* this would be a huge turn off.
The controller screen will be probably just a cheap low resolution display for mainly 2d inventory or map graphics. I cant imagine that they put a quarter HD display with a decent quality on the controllers. The 4 controllers will cost more than the console itself. Thats just silly.