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[TechpowerupAMD "Jaguar" Micro-architecture Takes the Fight to Atom with AVX, SSE4, Quad-Core - Page 7

post #61 of 68
Isn't the particular haswell graphic unit found in i7s and the such? Not sure how relevant to Temash/Tegra that is.
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post #62 of 68
Quote:
Originally Posted by Blameless View Post

Honestly, I would not be terribly surprised if Silvermont was ~100% faster than Bonnell at the same power target, simply from knowing how outdated much of Atom currently is.

I agree that it's not hard to accomplish. But they have to. They have been rehashing the same foundations over, over, and over again.
   
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post #63 of 68
Looks nice, it will be interesting to see how PS4 performs compared to PS3 and current gen PCs.

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post #64 of 68
Thread Starter 
Quote:
Originally Posted by ThePath View Post

15% claim from AMD presentation have yet to be proven. Usually AMD claims are based on best case scenario, and not average.
Even if it is true, I don't see how 15% increase over bocat would make 1GHz Temach better than A15 @1.9GHz

The jaguar clocked at 2GHz are obviously not for tablets, and have much higher TDP
So ?

It was running on low settings
http://www.pcper.com/news/Mobile/CES-2013-Video-AMD-Temash-Prototype-plays-DiRT-Showdown-1080p

Haswell on the other hand can run the same game at 1080p on high quality settings
http://www.anandtech.com/show/6600/intel-haswell-gt3e-gpu-performance-compared-to-nvidias-geforce-gt-650m

Anyway, how does that prove that it is faster than Tegra 4 when there is no side by side comparison between the two ? I fail to see your point.

that haswell chip is laptop/desktop chip, Temash is under 5w ultra low power chip...bad comparison, temash will compete against clover trail chips.
Edited by Asy - 2/22/13 at 12:03pm
post #65 of 68
Quote:
Originally Posted by Asterox View Post

Bobcat APU CPU part is based on the AMD K8 architecture, Jaguar CPU is actually based on AMD's K10 architecture
proof.gif
 
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post #66 of 68
Quote:
Originally Posted by Nintendo Maniac 64 View Post

:gotproof:

After you read this article below, then go again see my previous message with two photos then there should be no doubt. wink.gif

http://www.hardwaresecrets.com/article/480
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post #67 of 68
Quote:
Originally Posted by Asterox View Post

Bobcat APU CPU part is based on the AMD K8 architecture, Jaguar CPU is actually based on AMD's K10 architecture.Jaguar CPU has almost all CPU instructions as Trinity APU, or FX Piledriver and this is a very important difference because old Bobcat APU has none of these new CPU instructions.If you look at this picture one of the major differences, in new Jaguar's Core is "128bit FPU Datapath" with everything else highlighted in blue. smile.gif




Quote:
Originally Posted by Asterox View Post

After you read this article below, then go again see my previous message with two photos then there should be no doubt. wink.gif

http://www.hardwaresecrets.com/article/480

I don't see this article as proving that this processor is based on K10.

All the instructions mentioned on the slide you showed above are NOT present in K10. Some of these instructions such as AVX force a complete redesign of the FPU which means that if K10 were the base, then the majority of the design would have to be reworked simply to allow the new instructions.

A much better case is the Bulldozer architecture, but even that would require so much modification to fit the needed TDP that it would hardly look similar.

OT: I didn't realized that Brazos didn't have hardware integer division. Adding that will have a large performance increase for quite a few applications. I do wonder about the IPC claims. If the numberss don't include the new instruction sets, then performance will see a much higher performance in some cases; however, if the numbers do include them, then there is likely far less of an increase in most applications due to few programs being compiled with optimizations for these instructions.
post #68 of 68
Quote:
Originally Posted by hajile View Post


I don't see this article as proving that this processor is based on K10.

All the instructions mentioned on the slide you showed above are NOT present in K10. Some of these instructions such as AVX force a complete redesign of the FPU which means that if K10 were the base, then the majority of the design would have to be reworked simply to allow the new instructions.

A much better case is the Bulldozer architecture, but even that would require so much modification to fit the needed TDP that it would hardly look similar.

OT: I didn't realized that Brazos didn't have hardware integer division. Adding that will have a large performance increase for quite a few applications. I do wonder about the IPC claims. If the numberss don't include the new instruction sets, then performance will see a much higher performance in some cases; however, if the numbers do include them, then there is likely far less of an increase in most applications due to few programs being compiled with optimizations for these instructions.

In practice Jaguar is not fully K10, but something on that the basis no doubt with some other new technical elements added.K8 has 64bit FPU Datapath, but K10 has 128bit FPU Datapath and yes there is the Hardware Integer Division in Jaguar. Either way Jaguar it certainly not K8, when it comes to performance it is very obvious It kinda looks like a K10 but with new ISA enechanementes and other improvments under the hood. smile.gif
Edited by Asterox - 2/23/13 at 6:26pm
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