AMD Zambezi news, info, fans !

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02-25-2011, 08:57 PM
undone

Quote:

Originally Posted by mAJORD

Well, Been playing around with pictures and numbers

now i'm out of :coffee:

Hopefully to scale! (Bulldozer is interesting to scale given the quoted size.. I don't think it is supposed to include the wasted space (and small amt of logic) around the L2 Cache, which what i've run with (not doing so leaves large discrepency in L2 cache density when you look at it next to Llano...

http://img543.imageshack.us/img543/6...isoncrp7cr.png

Well Done:up:

BTW I'm not surprise to see the single integer core in bulldozer(exclude L1 cache) are 2 times as large as which Barcelona & Shanghai have.
02-25-2011, 09:02 PM
Johnny87au

Quote:

Originally Posted by informal

OK guys,now that we have almost all the details of the design with rumored clock speeds,IPC jumps,frontend penalties,Turbo clock information, I'm pretty sure the Donanimhaber slide is genuine :). I have no idea if it was AMD who actually made the slide,but the speedups are matching almost exactly the numbers derived by various other sources on the net(rumorpedia's,scarletwh*re,server speed up slides for MT workloads).
Summary by me ,purely hypothetical of course (for a hypothetical 3.5Ghz Zambezi with 4.2Ghz integer turbo mode : ) ):

Single thread pure integer desktop workloads :
-around 12 to 15% IPC improvement -too complicated to explain how I got to this particular range :) ,
-around 13% effective clock improvement-4.2Ghz BD Turbo Vs 3.7Ghz Thuban Turbo,
-cumulative speed up of 30% versus Thuban in this type of workload,on average(can be higher or lower ,depends on application and whether it's ALU bound or memory latency sensitive)

Single thread fp workload(this covers in my opinion integer SEE too):
- around 40%-50% better per clock performance than one Thuban core;this is one 128bit FMAC/IMAC Vs one Thuban FP part of the core
-around 13% effective clock improvement-4.2Ghz BD Turbo Vs 3.7Ghz Thuban Turbo <-Turbo should kick in when single threaded workload is detected ,even if it is a floating point(power draw intensive)
-cumulative speed up of ~60% versus Thuban in this type of workload,on average.

Multi threaded integer workloads(SSE in MMX/IMAC pipelines):
-50-80% faster than Thuban 1100T

Multi threaded floating point workloads(fp ops in FMAC pipelines)
-50-80% faster than Thuban 1100T

All of this equates to a total of around 40-50% faster than Thuban 1100T @ 3.3Ghz. Or around 15-20% on average faster than Westmere 3.33Ghz 6C in client workloads.
I also think that the leaked AMD Terminator slide (FX,"I wil be back") is not without merit :).

Sounds bit off, to good to be true..
02-26-2011, 02:00 AM
FlanK3r

if will really true, will be more than awesome! I hope for so too :). Im really sure about Cinebenchr11.5 score about 9.5-10 points. But I have not idea about single threaded performance.
02-26-2011, 08:03 AM
demonkevy666

Quote:

Originally Posted by mAJORD

Well, Been playing around with pictures and numbers

now i'm out of :coffee:

Hopefully to scale! (Bulldozer is interesting to scale given the quoted size.. I don't think it is supposed to include the wasted space (and small amt of logic) around the L2 Cache, which what i've run with (not doing so leaves large discrepency in L2 cache density when you look at it next to Llano...

http://img543.imageshack.us/img543/6...isoncrp7cr.png

A single module was said to have 213 million transistors, not 67.
02-26-2011, 08:04 AM
demonkevy666

Quote:

Originally Posted by mAJORD

Well, Been playing around with pictures and numbers

now i'm out of :coffee:

Hopefully to scale! (Bulldozer is interesting to scale given the quoted size.. I don't think it is supposed to include the wasted space (and small amt of logic) around the L2 Cache, which what i've run with (not doing so leaves large discrepency in L2 cache density when you look at it next to Llano...

http://img543.imageshack.us/img543/6...isoncrp7cr.png

A single module was said to have 213 million transistors, not 67.
that's two cores not one.
02-26-2011, 04:41 PM
mAJORD

That 213M figure was including L2

module logic transistor count could be + - 10M!
02-26-2011, 04:43 PM
Apokalipse

Quote:

Originally Posted by demonkevy666

A single module was said to have 213 million transistors, not 67.
that's two cores not one.

Is that including the L2 cache?
02-28-2011, 12:50 PM
FlanK3r

Interlagos 2P in video http://www.youtube.com/watch?v=4v07kzah91A
02-28-2011, 03:33 PM
charged3800z24

Quote:

Originally Posted by FlanK3r

Interlagos 2P in video http://www.youtube.com/watch?v=4v07kzah91A

Thats just awsome. 32 corse in a 2P.
02-28-2011, 06:51 PM
stangracin3

Quote:

Originally Posted by charged3800z24

Thats just awsome. 32 corse in a 2P.

what a :banana::banana::banana::banana:ing dumbass, he didnt even use new TIM
02-28-2011, 06:56 PM
slaveondope

Quote:

Originally Posted by stangracin3

what a :banana::banana::banana::banana:ing dumbass, he didnt even use new TIM

They run so cool you dont need to change it:rolleyes:
02-28-2011, 10:59 PM
JF-AMD

that guy installs and swaps processors for a living, pretty sure he knows what he is doing
02-28-2011, 11:03 PM
xVeinx

Quote:

Originally Posted by slaveondope

They run so cool you dont need to change it:rolleyes:

They are still rated at 125 watt TDP. They're going to give off heat. Run those puppies at full load and I guarantee you'll want new TIM ;).
02-28-2011, 11:21 PM
Daveburt714

Quote:

Originally Posted by stangracin3

what a :banana::banana::banana::banana:ing dumbass, he didnt even use new TIM

C'mon guys.... The dude was just doing a quick swap to show the number of cores running. :shakes:

It's not like he was setting up a permanant system he was intending to OC.
There was still paste on the HSF and the chips. I'm sure it was sufficient for a quick test.

OT: Pretty sweet to at least see some 16 core action! :up:
03-01-2011, 02:31 AM
FlanK3r

yes, video was about qucikly swap CPUs. Not as we making it with love :)
03-01-2011, 02:37 AM
informal

That guy probably swaps a dozen of CPUs in a day. This was just a demo show about how easy it is to upgrade a G34 system with Interlagos.
03-01-2011, 02:56 AM
Apokalipse

Quote:

Originally Posted by informal

That guy probably swaps a dozen of CPUs in a day.

I think it would be more than a dozen.
03-01-2011, 03:41 AM
Smartidiot89

I've switched CPU's many times in my own system and not switching TIM :shrug: For example when my short patience runs out as I can't find my tube I just don't give a damn. Sure I gain like 3-4 degree's C when I use new TIM but it's not the end of the world.

Quote:

Originally Posted by FlanK3r

yes, video was about qucikly swap CPUs. Not like us making love with it :)

Fixed :ROTF:
03-01-2011, 07:17 PM
slaveondope

Quote:

Originally Posted by xVeinx

They are still rated at 125 watt TDP. They're going to give off heat. Run those puppies at full load and I guarantee you'll want new TIM ;).

No seriously they do run that cool.......

Quote:

Originally Posted by JF-AMD

that guy installs and swaps processors for a living, pretty sure he knows what he is doing

Quote:

Originally Posted by Daveburt714

C'mon guys.... The dude was just doing a quick swap to show the number of cores running. :shakes:

It's not like he was setting up a permanant system he was intending to OC.
There was still paste on the HSF and the chips. I'm sure it was sufficient for a quick test.

OT: Pretty sweet to at least see some 16 core action! :up:

Quote:

Originally Posted by FlanK3r

yes, video was about qucikly swap CPUs. Not as we making it with love :)

Quote:

Originally Posted by informal

That guy probably swaps a dozen of CPUs in a day. This was just a demo show about how easy it is to upgrade a G34 system with Interlagos.

Quote:

Originally Posted by Apokalipse

I think it would be more than a dozen.

Quote:

Originally Posted by Smartidiot89

I've switched CPU's many times in my own system and not switching TIM :shrug: For example when my short patience runs out as I can't find my tube I just don't give a damn. Sure I gain like 3-4 degree's C when I use new TIM but it's not the end of the world.

Fixed :ROTF:

Got ya:p:
:D
03-01-2011, 08:13 PM
ChanceCoats123

That's some sweet stuff right there. Also, those processors are huge! I mean, there is not really a good way to make 16 cores "small," but damn! Nice chips for sure though. I wonder, from a many-chip computing stand point, what kind of performance increase you see going from 2x12 to 2x16.
03-01-2011, 09:04 PM
Hawkeye4077

My 4184s Idle at around 22c at 2800mhz

Edit: Using Thermalright 120s
03-01-2011, 11:12 PM
Apokalipse

Quote:

Originally Posted by ChanceCoats123

That's some sweet stuff right there. Also, those processors are huge! I mean, there is not really a good way to make 16 cores "small," but damn! Nice chips for sure though. I wonder, from a many-chip computing stand point, what kind of performance increase you see going from 2x12 to 2x16.

I've heard 8 core bulldozer die is smaller than Thuban.
03-02-2011, 12:27 AM
imamage

Quote:

Originally Posted by mAJORD

Well, Been playing around with pictures and numbers

now i'm out of :coffee:

Hopefully to scale! (Bulldozer is interesting to scale given the quoted size.. I don't think it is supposed to include the wasted space (and small amt of logic) around the L2 Cache, which what i've run with (not doing so leaves large discrepency in L2 cache density when you look at it next to Llano...

http://img543.imageshack.us/img543/6...isoncrp7cr.png

Awesome Graphic :up::up:
03-02-2011, 05:44 AM
zalbard

Quote:

Originally Posted by Apokalipse

I've heard 8 core bulldozer die is smaller than Thuban.

Makes sense, new node and only 2 more cores.
03-02-2011, 06:02 AM
Manicdan

Quote:

Originally Posted by zalbard

Makes sense, new node and only 2 more cores.

its actually not even 2 more cores. since the module is used because its 90% as good as a core with less space, in reality if Thuban is 6 cores, then BD is just 7.2 more complex cores.

if it wasnt for all that "blank" space between cores, BD should have been able to fit in like 280mm2, but i think is coming out closer to 340mm2

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