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Forums - Microsoft Discussion - Hot Chips: Xbone Silicon (5b transistors, 363mm2, 8GB Flash, 1.31TFlops, 204GB/s peak BW)

ethomaz on 26 August 2013

Adinnieken said:

As originally stated, there is coherency between the CPU AND GPU.  So, it is a hetrogenus unified memory architecture.

Uniform... hUMA means Heterogeneous Uniform Memory Access.

MS says it uses coherence shared memory... Non-Uniform Memory Access (NUMA) is coherence shared memory too... you can't say it is hUMA.

You can be right but nothing says that for now.



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walsufnir on 26 August 2013
ethomaz said:

Adinnieken said:

As originally stated, there is coherency between the CPU AND GPU.  So, it is a hetrogenus unified memory architecture.

Uniform... hUMA means Heterogeneous Uniform Memory Access.

MS says it uses coherence shared memory... Non-Uniform Memory Access (NUMA) is coherence shared memory too... you can't say it is hUMA.

You can be right but nothing says that for now.

 

We won't know for a long time perhaps but MS really put a lot of brainpower in this design, for sure. No matter what you call it, both seem to do mostly the same.



ethomaz on 26 August 2013

Looking at the slides you can say the CPU didn't have direct access to eSRAM... you have two memory pools in Xbone where one of them the CPU can't reach (needs to ask to GPU).

But I think that was expected, not? The eSRAM liked just to GPU?



ethomaz on 26 August 2013

walsufnir said:

We won't know for a long time perhaps but MS really put a lot of brainpower in this design, for sure. No matter what you call it, both seem to do mostly the same.

The chip is really complex... a lot of co-aux processors... MS will have to do a maginal job in development software to make easy the use of all of them.



walsufnir on 26 August 2013
ethomaz said:

walsufnir said:

We won't know for a long time perhaps but MS really put a lot of brainpower in this design, for sure. No matter what you call it, both seem to do mostly the same.

The chip is really complex... a lot of co-aux processors... MS will have to do a maginal job in development software to make easy the use of all of them.


Yes! Their compiler-team will have to do a lot of work!



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riderz13371 on 26 August 2013

I don't understand what any of this means lol...



Azerth on 26 August 2013
riderz13371 said:
I don't understand what any of this means lol...


welcome to the club lol



walsufnir on 26 August 2013

Details will come soon. By now it's hard to judge :)



Adinnieken on 26 August 2013

Basically, he's saying that the Xbox One is capable of 5TFlops. It's performance is actually on par with a high-end PC, and will be beyond 2015. The SoC in the Xbox One is a W2W design, with the Move processors on the base layer, the APU on another layer, and the ESRAM on top. There is apparently some significant importance to being layered vs. being laid out on one wafer.

EDIT: Corrected the TeraFlop info.

Conversely the PS4 is 3.2TF



NYCrysis on 26 August 2013
realgamer said:
More information

Insider Daily: Xbox is w2w APU + discrete hi-end GPU + future proof tech from 2014-2015 PCs

misterxmedia
August 25th, 18:03
Insider: Congratulations on getting married....m

Well I guess you realise the unjustified hate sony has spread throughout the industry, has had a huge impact on Microsoft and its xbox brand. It has seen ms hardened up on nda and even resigned some of the bosses in control of xbox. The last 4 months has been to risky to contact you.. with the stricken rules... I would have risked way to much. But the best way to let you know the truth was to work harder then I ever have. The people behind the xbox brand stand buy the truth we do not play media games with sony... the pudding is in the mix with regards to how powerful said box really is. And credibility is out the window with sony. The games and devotion that xbox has with the one. Is even more a driving force then with windows. .. the games will speak for them selves. The xbox one is extremely powerful and it really does pack the graphics raw performance of the high end pc markets.... And it is more powerful then 1.85tf .. the people why think it is
1.2/3 are fooling the selves. I expect a few well known forums to start putting out the trash.... Hotchips will show enough to prove that sony have lied...

w2wapu + dgpu 680gtx level gains...:) and a new designed ddr3 hsa+ gcn2.0 + :)


/end of chat so far/

Misterx: In other words Xbox One specs have not changed since Febrary 2013(APU is a system SoC that VGleaked and dGPU is application SoC - 2x8950 level GPUs tapped together) and Xbox One is a 5TF paper beast with optimisation and other new tech will equal to PCs 5TFx2=10TF. Here is a link about what w2w is about http://misterxmedia.livejournal.com/114613.html?thread=1524661. Some pictures from the link:


Is that why forza has baked lighting and no weather effects? ◔_◔