mastrdrverI never said they were the same and neither did AMD. Though, you'll never be able to get a Jaguar APU with 8 cores and the GPU power of a 7850. AMD said that a "stripped down version" is coming. Of course there is, and for anyone that has seen AMD public road maps, this no surprise.

Kabini and Temash uses the same "Jaguar cores" (per an AMD slide) that the PS4 chip uses.

High end Kabini will be a little under 2Ghz. The PS4 chip is going to have a similar clock since it is based on the same architecture.

According to some leaks, Temash has similar performance to that of the current Intel i3 2367M.

theoneandonlymrkIm expecting amd powerstates and boost on it myself prob 1.6ghz stck boosting to 2.6per core and within tdp

mastrdrver2.6Ghz is not going to happen. The architecture is not built for speed but power.

cdawallIt might exceed the TDP, but I do not see it having any issues exceeding 2.6ghz. It still uses off the shelf silcone.

xenocea<snip>

mastrdrverIt's not a problem of TDP, it's not a problem of power, it's a problem of the architecture.

The architecture is not made for high clocks, unlike Bulldozer. It does not have enough gates to be able to clock that high.

AMD has already stated that the clocks for Jaguar will be 10% over Bobcat's normal/boost clocks and that is for the 25w Kabini part.

mastrdrverBobcat is not a speed monster like Bulldozer and P4 were designed to be. Thus it does not have the long gates required for high clock speeds.

As to what ARM has to do with an x86 processor, idk. Might as well compare the 1Ghz clock speed on a GK110 and say that nVidia doesn't know how to use power efficiently.

mastrdrverBobcat is not a speed monster like Bulldozer and P4 were designed to be. Thus it does not have the long gates required for high clock speeds.

As to what ARM has to do with an x86 processor, idk. Might as well compare the 1Ghz clock speed on a GK110 and say that nVidia doesn't know how to use power efficiently.

cdawallWhat are you referring to with gates? CPU's have ALU's and a processing pipeline. Bulldozer is a short/mid length pipeline like all other AMD/Intel CPU's outside of P4. Pipeline length doesn't have anything to do with clockspeed. IPC and many other design cues drop into the speed side of things. :laugh:

theoneandonlymrkArms relevance increases daily and 2.6 on a low power cpu using hurry to sleep and intelligent power gateing is a thing of the present, tried and improved on yearly one to four cores will boost to 2.6 imho but it Is just an opinion
Oh and winrt uses arm whereas Amd s Fx line emulates x86 no special hardware odd eh

mastrdrver:laugh: Oh yea, I meant pipeline length. I was thinking about gate delays.

Anyway, I've always been under the understanding that clock speed was related to pipeline length since clock speed is nothing more then the calculations per second (or some calculation like that) that the processor can do. To go higher (thus higher clock speeds) you need a long pipeline length which was why P4 for so long. Problem is, long pipelines also need more power and suffer more from cache misses.

In any case, AMD has already stated that the max turbo clock for Kabini in a PC will be just under 2Ghz (10%+ on top of what Bobcat already has). Adding more cores just ups the power usage so I can't see how they would reach 2.6Ghz.

Also I've read that consoles are limited to a max power usage of something less then 50w. How true this is, I don't know.

cdawallone at that it has the ability to scale to 5ghz if the TDP and bulk yields allow it.

cadavecaReally. BD core design made for 5 GHz. Like the song goes...You ain't seen nothing yet...b-b-b-b-b-aby...



or so I am hoping.:p

mastrdrver:laugh: Oh yea, I meant pipeline length. I was thinking about gate delays.

Anyway, I've always been under the understanding that clock speed was related to pipeline length since clock speed is nothing more then the calculations per second (or some calculation like that) that the processor can do. To go higher (thus higher clock speeds) you need a long pipeline length which was why P4 for so long. Problem is, long pipelines also need more power and suffer more from cache misses.

In any case, AMD has already stated that the max turbo clock for Kabini in a PC will be just under 2Ghz (10%+ on top of what Bobcat already has). Adding more cores just ups the power usage so I can't see how they would reach 2.6Ghz.

Also I've read that consoles are limited to a max power usage of something less then 50w. How true this is, I don't know.



What does the clock speed of an ARM processor have to do with the clock speed of the AMD chip inside the PS4?

theoneandonlymrkYou indicated arm was irelivant I was pointing out x86 is largely unimportant now and all these processors are made in the same way's so clock speeds dont vary that much on diff npdes and processes , the rich land apu at 2ghz is a lower bin obv but thats not to say they couldn't have been made quicker, Amd have a lot of sku's lingering in the lower price sector and have to be carefull not to diminish old stock saleability .
Ps4 will be top bin richland all 8 cores and features working and 2.6ghz it Will be.
The more I think about it though I too wouldn't be surprised by higher clocks. Efin phone

TheLaughingManWhy would you bee surprised by clocks higher than 2.6 GHz. Both current generation offerings from Microsoft and Sony are clocked at 3.2 GHz. While more cores will be a great boon since they can better utilize them, raw clock speed can be very helpful in single threaded applications such as Blu-ray playback, web browsing, system UI, their audio cloud player thingy, etc.

I personall don't see the cores being less than 3.6 GHz with Turbo up to 4.0 GHz easy.

mastrdrverPS4 is notin and Richland. Richland does not have Jaguar cores. Jaguar is an updated Bobcat core, not Bulldozer.



AMD has already stated what max clocks will be for a 4 core Jaguar with a 25w TDP. If high clocks with low TDP was possible, they would have already done it. PS3 is a Cell design which is totally different from the PS4 AMD design. When you drop a process node, with the same overall design, you either gain higher clocks with the same TDP or lower TDP with the same clocks. I don't know how much of a drop it is going from 40nm to 28nm, but if AMD is saying a 10% clock boost with a slight increase in TDP, I don't see how anyone can come to the conclusion that 3Ghz+ is easy. If it was, then they would have done it. It's not like the TDP of the APU is going to be like that of a desktop either since there are power limits to what a console system can pull from the wall.