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Forums - Gaming - AMD’s Jaguar Architecture: The CPU Powering Xbone, PS4, Kabini & Temash (2GHz clock speed requires 66% TDP increase compared to 1.6GHz)

ethomaz on 23 May 2013
walsufnir said:

Yes, devkits will prevent using more cores aswell as the respective operating systems will lock out ressources.

I am so looking forward for hardware-breakdowns! I already did a little bit on my own given the picture above but it was too bad to identify every bit. But I can proove it's ddr3-ram :)

lol even with zoom I can't read the memory model nice job.



Around the Network
walsufnir on 23 May 2013
ethomaz said:
walsufnir said:

Yes, devkits will prevent using more cores aswell as the respective operating systems will lock out ressources.

I am so looking forward for hardware-breakdowns! I already did a little bit on my own given the picture above but it was too bad to identify every bit. But I can proove it's ddr3-ram :)

lol even with zoom I can't read the memory model nice job.


Take this one instead! http://gimbot.net/wp-content/uploads/2013/05/Xbox-one-mainboard-exposed.jpg



ethomaz on 23 May 2013
walsufnir said:

Take this one instead! http://gimbot.net/wp-content/uploads/2013/05/Xbox-one-mainboard-exposed.jpg

WOW that's helped a lot... thanks.



walsufnir on 23 May 2013
ethomaz said:
walsufnir said:

Take this one instead! http://gimbot.net/wp-content/uploads/2013/05/Xbox-one-mainboard-exposed.jpg

WOW that's helped a lot... thanks.


You are welcome! Interesting times for techies like us, isn't it? Damn that hand and its shadow! :)



SnesTea on 23 May 2013
disolitude said:

These are cool but are still very low end chips from AMD focused on power.

The most interesting part I found in this article is this:

"In both our Xbox One and PS4 articles I referred to the SoCs as using two Jaguar compute units - now you can understand why. Both designs incorporate two quad-core Jaguar modules, each with their own shared 2MB L2 cache. Communication between the modules isn’t ideal, so we’ll likely see both consoles prefer that related tasks run on the same module."

Looks like AMD just slapped 2 of these together on the same die and gave them a single more powerful GPU and shared cache.

ethomaz - here is what Xbox One mobo looks like.

Lol. What a joke. Essentially an FX processor using Bobcat 2.0 cores.



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disolitude on 23 May 2013
Snesboy said:
disolitude said:

These are cool but are still very low end chips from AMD focused on power.

The most interesting part I found in this article is this:

"In both our Xbox One and PS4 articles I referred to the SoCs as using two Jaguar compute units - now you can understand why. Both designs incorporate two quad-core Jaguar modules, each with their own shared 2MB L2 cache. Communication between the modules isn’t ideal, so we’ll likely see both consoles prefer that related tasks run on the same module."

Looks like AMD just slapped 2 of these together on the same die and gave them a single more powerful GPU and shared cache.

ethomaz - here is what Xbox One mobo looks like.

Lol. What a joke. Essentially an FX processor using Bobcat 2.0 cores.

It would be an FX processor using Richland cores technically...and this really isn't all that bad truth be told. Clock for clock, these cores are as good as those found on the FX CPU if not better. 

If Xbox One or PS4 come with somesort of a core task allocation program built in to the dev tools, and don't leave it to programmers to decide how cores are being used, this can easily match and even beat intels i3 ivy bridge CPU line.



drkohler on 23 May 2013
ethomaz said:
hinch said:

Dissapointing, but expected. A 66% increase in TDP is pretty crazy for a 20% increase in clock speed. I guess these are intended to be used as LP chips after all.

I think now both will use 1.6Ghz for the CPU or at maximum 1.8Ghz... neither Sony or MS will go close to 2.0Ghz.

The article is largely an "I think.." article. Say hello to AMD data sheets that tell a different story. For example, the GX418RA module is a SoC that burns 15W at 1.8GHz (this is a quad-core Jaguar with disabled gpu). The GX420GA is a 2GHz Soc that burns 25W - that would be 66% more heat than the 1.6GHz SoC the article mentions, completely forgetting the gpu part since this 25W part is a SoC with ENABLED gpu.

If we add two of the 2GHz (no gpu) parts, we would end up in the 40W region for an 8core Jaguar. This is VERY EASILY coolable (mind you that 40W max is 8 cores fully busy doing porn downloads...). Of course 2 GHz parts are a lot more expensive than the normal 1.6GHz parts, as this is simply a fishing question for the best chips.

So technically, absolutely nothing speaks against a 2GHz 8core Jaguar SoC. Monetary wise, probably suicide at the moment. But you never know, since that 8G gddr5 bomb...



SnesTea on 23 May 2013
disolitude said:
Snesboy said:
disolitude said:

These are cool but are still very low end chips from AMD focused on power.

The most interesting part I found in this article is this:

"In both our Xbox One and PS4 articles I referred to the SoCs as using two Jaguar compute units - now you can understand why. Both designs incorporate two quad-core Jaguar modules, each with their own shared 2MB L2 cache. Communication between the modules isn’t ideal, so we’ll likely see both consoles prefer that related tasks run on the same module."

Looks like AMD just slapped 2 of these together on the same die and gave them a single more powerful GPU and shared cache.

ethomaz - here is what Xbox One mobo looks like.

 

Lol. What a joke. Essentially an FX processor using Bobcat 2.0 cores.

It would be an FX processor using Richland cores technically...and this really isn't all that bad truth be told. Clock for clock, these cores are as good as those found on the FX CPU if not better. 

If Xbox One or PS4 come with somesort of a core task allocation program built in to the dev tools, and don't leave it to programmers to decide how cores are being used, this can easily match and even beat intels i3 ivy bridge CPU line.

It's still pretty bad though.



Scoobes on 23 May 2013
ethomaz said:
walsufnir said:

Take this one instead! http://gimbot.net/wp-content/uploads/2013/05/Xbox-one-mainboard-exposed.jpg

WOW that's helped a lot... thanks.

Who is it? With AMD announcing their 2133MHz DDR3 RAM I just assumed they were also supplying the RAM for Xbone.




Get your Portable ID!

drkohler on 23 May 2013
Scoobes said:
ethomaz said:
walsufnir said:

Take this one instead! http://gimbot.net/wp-content/uploads/2013/05/Xbox-one-mainboard-exposed.jpg

WOW that's helped a lot... thanks.

Who is it? With AMD announcing their 2133MHz DDR3 RAM I just assumed they were also supplying the RAM for Xbone.

AMD dram modules are rebranded chips. Why buy from the middle man?