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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 2991

post #29901 of 67503
I know that this is little off-topic but i just dont know why AMD do not use Jaguar architecture as a big core!

i did two benchmarks between a6 5200 and FX 4300 both on 2.0GHz
Cinebench R11.5

Jaguar 2.0GHz - 1.99cb (4cores) 116%

Piledriver 2.0GHz - 1.71cb (4cores) 100%

i know that jaguar is for lower and piledriver for higher frequences .
Why is Jaguar beating Piledriver by 16%?

anyone?
Edited by Themisseble - 1/26/14 at 6:51am
post #29902 of 67503
They probably can't get Jaguar to scale properly. Maybe too much leakage once they clock it past a certain frequency.
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post #29903 of 67503
There is no L3 chache and still faster?
Yep jaguar is not design for higher clock but it can be...

http://www.extremetech.com/computing/174980-its-time-for-amd-to-take-a-page-from-intel-and-dump-steamroller/2
post #29904 of 67503
My guess is that 2 jaguar cores need more die area than 1 BD/PD/SR module. What the author of that extremetech article fails to understand is that without SMT or CMT , AMD couldn't compete with intel on fully multithreaded workloads. Of course now their focus has shifted towards APUs, HSA etc. so the whole discussion is perhaps moot.
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post #29905 of 67503
No, core is smaller everything is smaller.....
That why XO1/PS4 use Jaguar.... beating piledriver
post #29906 of 67503
Quote:
Originally Posted by Themisseble View Post

No, core is smaller everything is smaller.....
That why XO1/PS4 use Jaguar.... beating piledriver

Reason being is that Jaguar cores are not as efficient when multitasking. They are designed to be low power consumption and the architecture vastly show it. If you look at the architectures you will see that even though PD/SR cores use more power, they are better for general purpose.

Tha APUs are what will be replacing both however you will see that with HSA that it will make WAY more sense for Desktop and laptop computer that the SR APU will be much stronger. The Jaguar cores are more for lower end computing that does not need the performance buff for this you would see a purpose of low end tablets and so on.





The scaling is better with the BD/PD/SR line than Bobcat/Jaguar/Puma
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post #29907 of 67503
Quote:
Originally Posted by Themisseble View Post

No, core is smaller everything is smaller.....
That why XO1/PS4 use Jaguar.... beating piledriver

so your comparing a processor running full out to a processor running at 25%? and claiming it is beating it??

a super low power quad vs a 4ghz 8 core processor running as a quad @ 2ghz..

utterly irrelevant

next thing we will see next year is FT1 benchs VS fx benchs *eyeroll*
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post #29908 of 67503
Thread Starter 
Quote:
Originally Posted by Themisseble View Post

No, core is smaller everything is smaller.....
That why XO1/PS4 use Jaguar.... beating piledriver

Except that the 8350 has a 50-60% speed lead at stock, and double the cores, obliterating the poor little eco-chip.

Plus Jaguar is a 4-core, there is no native 8-core design of it.

It couldn't actually scale anywhere near as high as PD's speed, so get that out of your head.

It's missing L3, which frankly if PD was missing L3 it could probably be a 10-core, but in real life applications, L3 matters, it's why overclocking the northbridge on Ph II made a difference.

It's missing newer instruction sets and execution techniques, so again in the real world it'd be at a disadvantage.

It's also built with a much weaker memory controller.

XBone and PS4 use it because they need low power consumption to pack it that small. That's all. It's also a semi-custom design, not straight up Jaguar.
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post #29909 of 67503
Quote:
Originally Posted by F3ERS 2 ASH3S View Post

Reason being is that Jaguar cores are not as efficient when multitasking. They are designed to be low power consumption and the architecture vastly show it. If you look at the architectures you will see that even though PD/SR cores use more power, they are better for general purpose.

Tha APUs are what will be replacing both however you will see that with HSA that it will make WAY more sense for Desktop and laptop computer that the SR APU will be much stronger. The Jaguar cores are more for lower end computing that does not need the performance buff for this you would see a purpose of low end tablets and so on.





The scaling is better with the BD/PD/SR line than Bobcat/Jaguar/Puma


you made your point...
i did single core benchmark to and jaguar scale better than FX 4300...

single core performance is 0.5 cb whuile multi score 1.95-1.99 thats is more than 3.9x
post #29910 of 67503
Quote:
Originally Posted by Themisseble View Post

you made your point...
i did single core benchmark to and jaguar scale better than FX 4300...

single core performance is 0.5 cb whuile multi score 1.95-1.99 thats is more than 3.9x

So only one test to base the world of what a general compute processor does.. le sigh



Side not here guys, I just had a thought.. I know that HSA works with the iGPU and that it help a lot. My questions is.. Is it possible to turn the dCPU to HSA compatible and still have them be efficient enough to see a benefit?
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