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Lagspike_exe · Feb 28, 2013

I'm not sure how credible PS4Daily is, but here's their rumor:

The AMD-made PlayStation 4 CPU will be clocked at 2 GHz and built on 28 nm process at GlobalFoundries in New York.

We’ve got an interesting bit of news regarding the PlayStation 4 CPU. The AMD-made processor will have a final clock speed of 2 GHz. So far the CPU has been underclocked at 1.6 GHz for development kits sent out to various developers.

Previous leaks put the clock speed at 1.6 GHz, but that was for development kits. The final clock speed for the 8-core AMD CPU will be bumped up 2 GHz according to our source. On top of that, the source reports that both the CPU and the GPU will be manufactured at 28nm at GlobalFoundries’ Fab 8 in New York — GlobalFoundries is co-owned by AMD. A desktop version of the “Jaguar” CPU will be available later this year.

The custom chip in the PlayStation 4 includes both the CPU and GPU — both components are made by AMD. The 8-core CPU is based on the upcoming “Jaguar” design, while the GPU is based on the Radeon 7000-series and is capable of 1.84 TFLOPS of processing power. That’s about 4.5x more powerful than the PS3 GPU.

http://ps4daily.com/2013/02/playstation-4-cpu-runs-at-2-ghz-rumor/

ComputerMKII · Feb 28, 2013

How much do Ghz matter in a computer's performance?

Lagspike_exe · Feb 28, 2013

Computer said:
How much do Ghz matter in a computer's performance?

Scales it almost linearly.

Dead Prince · Feb 28, 2013

what is that in GDDR5 ram?

Caboose · Feb 28, 2013

Sounds....awesome?

MikeE21286 · Feb 28, 2013

Yeah, I posted this in one of the numerous ps4 CPU threads a couple days ago.

I have never personally heard of ps4daily, which is why I shyed away from a thread.

More power = better, but man, I worry what all these "upgrades" do to the price...

zomgbbqftw · Feb 28, 2013

Oh man Deadmeat has commented on that article, Microsoft must be shitting themselves if they have sent him out again.

Also, AMD and GF are completely separate now. AMD paid their way out last year.

GavinGT · Feb 28, 2013

Would starting at 28nm potentially limit their ability to shrink the die in the future?

panty · Feb 28, 2013

A site registered like yesterday and now splurting rumours. Yeah highly credible.

Net_Wrecker · Feb 28, 2013

Will that allow developers to code to titanium and use the 8GB GDDR5 to achieve 120fps?

How many enthusiast PCs duct taped together is this?

Somnid · Feb 28, 2013

Computer said:
How much do Ghz matter in a computer's performance?

Across architectures not at all. Within an architecture like Lagspike said, it's fairly linear.

KennyLinder · Feb 28, 2013

How many GameCubes is it now?! It still run's Jaguar games, right?

StuBurns · Feb 28, 2013

So is this now as good as the Durango one if true?

Appollowexx · Feb 28, 2013

Does this make my Final Fantasy games prettier?

Hermii · Feb 28, 2013

How many Wii Us ducktaped together ?

Wishmaster92 · Feb 28, 2013

Great.

xenorevlis · Feb 28, 2013

StuBurns said:
So is this now as good as the Durango one if true?

Better, no? At least if that recent article about Durango's CPU being stock Jaguar.

coldfoot · Feb 28, 2013

DMPrince said:
what is that in GDDR5 ram?

Equivalent to an extra 2GB of GDDR5.

Ashler · Feb 28, 2013

Better clocks is always a plus.

If it doesn't reduce the lifespan of the console, nor does it make it sound like a jet plane, i'm all for it!

Persona86 · Feb 28, 2013

How many Kaz is that?

Arucardo · Feb 28, 2013

Lagspike_exe said:
Scales it almost linearly.

Uh, no.

Here's a good example: http://www.techspot.com/review/458-battlefield-3-performance/page7.html

In most cases it's not going to make a big difference.

Team Filler · Feb 28, 2013

zomgbbqftw said:
Oh man Deadmeat has commented on that article, Microsoft must be shitting themselves if they have sent him out again.

Holy shit, those comments. This deadmeat character seems unhinged.

Visualante2 · Feb 28, 2013

Somnid said:
Across architectures not at all. Within an architecture like Lagspike said, it's fairly linear.

Given that we know the processor is of x86 architecture, isn't that besides the point?

Corto · Feb 28, 2013

2 secret jizhertz.

Finaika · Feb 28, 2013

So in total PS4's CPU is like 16 GHz?

Holy shit!

Dictator93 · Feb 28, 2013

Arucardo said:
Uh, no.

Here's a good example: http://www.techspot.com/review/458-battlefield-3-performance/page7.html

In most cases it's not going to make a big difference.

There is a point to what you say, while at the same time being completely incorrect.

It depends completely on the application ustilizing said processor.
Some scale linearly... some dont.

Y2Kev · Feb 28, 2013

Lol! Deadmeat is around! It's like one of the post presidential debate spin rooms where you the crazy surrogates.

I don't believe this news.

coldfoot · Feb 28, 2013

Arucardo said:
Uh, no.

Here's a good example: http://www.techspot.com/review/458-battlefield-3-performance/page7.html

In most cases it's not going to make a big difference.

That's for a GPU-bottlenecked system with an already fast CPU.
A 1.6 GHz Jaguar is a far cry from 3-4 GHz Bulldozer so it will help a lot more.

ResidentDante · Feb 28, 2013

DMPrince said:
what is that in GDDR5 ram?

8 Kaz

Durante · Feb 28, 2013

Arucardo said:
Uh, no.

Here's a good example: http://www.techspot.com/review/458-battlefield-3-performance/page7.html

He's saying the CPU performance scales almost linearly with its clock speed, which is true. You are saying that game performance does not scale linearly with clock speed (particularly if the game is already bottlenecked elsewhere) which is also true.

Lagspike_exe · Feb 28, 2013

Arucardo said:
Uh, no.

Here's a good example: http://www.techspot.com/review/458-battlefield-3-performance/page7.html

In most cases it's not going to make a big difference.

It won't increase performance if the application/game isn't bottle necked by it. If you fully utilize the CPU, increasing the clock increases the performance.

Somnid · Feb 28, 2013

Visualante2 said:
Given that we know the processor is of x86 architecture, isn't that besides the point?

No, because the question was fairly broad and it's a common point of confusion like thinking multiple cores gives you linear scaling. For example, even within x86 the architectures differ so the fact that it's x86 doesn't mean 1Hz is equal to another, what you meant to say is that they are the same AMD "Jaguar" processor and this does make them comparable.

strata8 · Feb 28, 2013

Visualante2 said:
Given that we know the processor is of x86 architecture, isn't that besides the point?

Microarchitecture is the word he meant. PS4's CPU is based upon Jaguar while the 360 is PowerPC, etc.

edit: Uh, that was wrong. Better comparison is Jaguar vs Sandy Bridge or something. Both x86 architecture but different microarchitectures.

Hermii · Feb 28, 2013

Visualante2 said:
Given that we know the processor is of x86 architecture, isn't that besides the point?

I dont think he is talking about x86, I think he is talking about Jaguar.

You can compare a 1.5 ghz and 2 ghz jaguar and scale it linearly, but not a 1.5ghz jaguar with a 1.2ghz i5.

Durante · Feb 28, 2013

Y2Kev said:
I don't believe this news.

I only believe it if MS actually did upgrade their CPU.

zomgbbqftw · Feb 28, 2013

Y2Kev said:
Lol! Deadmeat is around! It's like one of the post presidential spin rooms where you the crazy surrogates.

Sometimes I think Deadmeat is a reverse troll, sent out by Sony Ninjas to make Microsoft look bad.

AlexM · Feb 28, 2013

It depends on what kind of coding you are doing. If the task isn't easily broken up jobs you can do in parallel then clock speed helps a lot. Games are relatively hard to break into parallel tasks so they will certainly benefit from a higher clock speed.

freezamite · Feb 28, 2013

Arucardo said:
Uh, no.

Here's a good example: http://www.techspot.com/review/458-battlefield-3-performance/page7.html

In most cases it's not going to make a big difference.

He is right. The performance of a CPU scales linearly with the clockspeed, unless there are other bottlenecks (lack of bandwidth, for example) that limit it from the outside.
Using a game which performance could be limited by thousands of factors aside from the CPU doesn't prove anything at all.

ghst · Feb 28, 2013

1.6ghz isn't underclocked for a jaguar core, it's stock. so that would be a 25% overclock while also doubling the standard number of cores on a chip.

unless there is also some liquid cooling solution being rumoured, i'm going to need a better source for this.

Xbudz · Feb 28, 2013

I'm sure it'll be the fastest damn 2GHz of all timeeee

SolidSnakex · Feb 28, 2013

zomgbbqftw said:
Sometimes I think Deadmeat is a reverse troll, sent out by Sony Ninjas to make Microsoft look bad.

Isn't that Mr. PowerVR?

Basileus777 · Feb 28, 2013

GavinGT said:
Would starting at 28nm potentially limit their ability to shrink the die in the future?

Yes. Die shrinks won't be happening as readily as they did this past generation.

Diablohead · Feb 28, 2013

Sony pulling all the stops, amazing.

Will be buying.

strata8 · Feb 28, 2013

ghst said:
1.6ghz isn't underclocked for a jaguar core, it's stock. so that would be a 25% overclock while also doubling the standard number of cores on a chip.

unless there is also some liquid cooling solution being rumoured, i'm going to need a better source for this.

A stock 4 core Jaguar APU has a TDP of 15W with the GPU included. That's literally passive cooling territory.

StuBurns · Feb 28, 2013

xenorevlis said:
Better, no? At least if that recent article about Durango's CPU being stock Jaguar.

I don't know, I've found it near impossible to keep up with all the rumours. The last 'layman' thread about it was saying the PS4 had the edge in GPU and RAM, but XB3 had it in CPU. No idea of anything beyond then.

Apoc29 · Feb 28, 2013

How much blast can it process?

Guerrillas in the Mist · Feb 28, 2013

I wonder if they haven't quite got the case nailed down with the addition of RAM and if this report it to be believed, an overclock. I'd imagine doing such things late in the day would cause a bit of a nightmare with keeping the heat level down in the hardware to an acceptable level?

GavinGT · Feb 28, 2013

Apoc29 said:
How much blast can it process?

All of it. It also has full access to Modes 1-7.

Projectjustice · Feb 28, 2013

Thats some good news about the cpu.

Elios83 · Feb 28, 2013

I don't believe a rumor from a random unknown site, but purely basing the discussion on what was announced during the Sony conference, the clock frequency for both the GPU and memory have been set while the same can't be said for the CPU.
Jaguar's working range is 1.6GHz-2Ghz as far as I know, so the reason why they haven't announced a clock frequency for the CPU might be either that it's not finalized and could be higher than 1.6Ghz or that simply they don't give much importance to the CPU considering that it does little to contribute to the whole raw power of the system.

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