AMD Carrizo Pre-release thread

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csbin

Senior member
Feb 4, 2013
858
412
136

:thumbsup:


Final Thoughts

Sometimes a name can inspire change. Carrizo isn’t one of those names, and when hearing the words ‘AMD’s notebook processor’, those words have not instilled much hope in the past, much to AMD’s chagrin no doubt. Despite this, we come away from Carrizo with a significantly positive impression because this feels more than just another Bulldozer-based update.
If you can say in a sentence ‘more performance, less power and less die area’, it almost sounds like a holy trifecta of goals a processor designer can only hope to accomplish. Normally a processor engineer is all about performance, so it takes an adjustment in thinking to focus more so on power, but AMD is promising this with Carrizo. Part of this will be down to the effectiveness of the high density libraries (which according to the slides should also mean less power or more performance for less die area) but also the implementation of the higher bandwidth encoder, new video playback pathway and optimization of power through the frequency planes. Doubling the L1 data cache for no loss in latency will have definite impacts to IPC, as well as the better prefetch and branch prediction.

Technically, on paper, all the blocks in play look exciting and every little margin can help AMD build a better APU. It merely requires validation of the results we have been presented along with a killer device to go along with it, something which AMD has lacked in the past and reviewers have had trouble getting their hands on. We are in discussions with AMD to get the sufficient tools to test independently a number of the claims, and to see if AMD’s Carrizo has potential.
 

Enigmoid

Platinum Member
Sep 27, 2012
2,907
31
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Looks nice. But like everything - I'll believe it when I see it.

I've been pleasantly surprised by a lot of things recently. Hope this is one of them.
 

Vesku

Diamond Member
Aug 25, 2005
3,743
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Glad to see Anandtech bringing up how much effort it can take to find decent AMD laptops.
 

monstercameron

Diamond Member
Feb 12, 2013
3,818
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Looks nice. But like everything - I'll believe it when I see it.

I've been pleasantly surprised by a lot of things recently. Hope this is one of them.

if it is anything like kaveri, then the chip won't be the issue. It is so difficult to choose between 5 or so ugly laptops or 3 really nice but way too expensive ones.
 
Aug 11, 2008
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Looks nice. But like everything - I'll believe it when I see it.

I've been pleasantly surprised by a lot of things recently. Hope this is one of them.

Yea, half the power usage with 1.5 times performance, without a node shrink (essentially 3x the performance per watt)? I will believe that when I see it. Maybe it is possible in some specific task such as the video playback that uses a new codec, but overall, seems highly unlikely. But then again, we had all the claims of Beema/Mullins giving 2x the performance per watt. Whatever happened to that?
 

Enigmoid

Platinum Member
Sep 27, 2012
2,907
31
91

. And when we quietly ran some benchmarks on the Carrizo chip at AMD’s event, the performance was rather lukewarm: 2,388 for 3DMark’s “Sky Diver” test, 959 for the Fire Strike test, and 282 for the Fire Strike Ultra test, using a processor 3DMark reported as the AMD K15 “Carrizo,” running at 2.1GHz (and at 3.3GHz “turbo” speeds), and with the integrated, 256MB of Radeon R7 graphics inside running at 800 MHz.

That would be 256 MB vram dedicated with probably ~1 GB dynamic.
 

maarten12100

Member
Jan 11, 2013
150
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Yea, half the power usage with 1.5 times performance, without a node shrink (essentially 3x the performance per watt)? I will believe that when I see it. Maybe it is possible in some specific task such as the video playback that uses a new codec, but overall, seems highly unlikely. But then again, we had all the claims of Beema/Mullins giving 2x the performance per watt. Whatever happened to that?
First of all core M doesn't perform as well as the 12W SKUs at all. It consumes 6-10W under load while the 12W SKUs consume 20-40W under load.
This chip will go head to head with the i3 4030u the i5 4210u and the i5 5200u.

Just Intel's creative TDP interpretation at work. Mullins has 2x the efficiency of Kabini that claim is pretty much true. But I don't know if that is what you're referring to.
 

AtenRa

Lifer
Feb 2, 2009
14,003
3,361
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How can you be sure 8800P is a 15W SKU? Isn't it a bit more logical to assume a TDP of 35W since AMD itself confirmed Carrizo TDP range will go up to 35W? 8800P will be the highest Carrizo SKU at launch, it is the first contender for a 35W SKU.

http://www.pcworld.com/article/2928...ng-the-most-popular-notebooks-run-longer.html

AMD looped the public “Big Buck Bunny” movie on a 15-watt FX-8800P and eked out 9.5 hours of HD video playback.

So it seams FX-8800P is 15W after all.

Edit: It can be configured from 12W up to 35W TDP.
 
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antihelten

Golden Member
Feb 2, 2012
1,764
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Glad to see Anandtech bringing up how much effort it can take to find decent AMD laptops.

Apparently Carrizo has gotten design wins with at least Asus, Acer, Dell, HP, Lenovo and Toshiba already so hopefully there will be something halfway decent to choose from here.
 

ZGR

Platinum Member
Oct 26, 2012
2,054
661
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Carrizo inside a laptop with proper build quality sounds like an excellent product. I hope to see it compete!
 

Enigmoid

Platinum Member
Sep 27, 2012
2,907
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First of all core M doesn't perform as well as the 12W SKUs at all. It consumes 6-10W under load while the 12W SKUs consume 20-40W under load.
This chip will go head to head with the i3 4030u the i5 4210u and the i5 5200u.

Just Intel's creative TDP interpretation at work. Mullins has 2x the efficiency of Kabini that claim is pretty much true. But I don't know if that is what you're referring to.

Unless you load the U level chips up with AVX2 Prime + Furmark you won't hit nearly those numbers.

On my 45W 3630qm @ 3.2 a CB 15 run uses about 36W package power.

Mullins has nowhere near 2x the efficiency of kabini. In reality kabini consumed far less than its TDP (TDP understated) while Beema/Mullins uses better turbo and a more accurate TDP. Perf/TDP is improved while perf/W barely budges.
 

Kallogan

Senior member
Aug 2, 2010
340
5
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battery life, decent perf and true h265 decoder

i would buy that in a nice 13-14" with decent display
 
Aug 11, 2008
10,451
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First of all core M doesn't perform as well as the 12W SKUs at all. It consumes 6-10W under load while the 12W SKUs consume 20-40W under load.
This chip will go head to head with the i3 4030u the i5 4210u and the i5 5200u.

Just Intel's creative TDP interpretation at work. Mullins has 2x the efficiency of Kabini that claim is pretty much true. But I don't know if that is what you're referring to.

What does core M and haswell U have to do with whether Carrizo can achieve 3x performance per watt gain, even if one does accept your undocumented figures?

And could you provide links to some real world tests from a reliable site that shows this mullins 2x performance per watt improvement with real power consumption tests, not just extrapolation based on AMD TDP figures? (which are undoubtedly as "creative" as those from intel.)
 

krumme

Diamond Member
Oct 9, 2009
5,956
1,595
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Looks good on paper. Imagine what zen & hbm can do on 14nm in dx12 games instead of this crappy cpu arch on 28nm in bloated dx11. Man - i will shut my eyes for that . We are in for some improvement the next 2 years.
 

mrmt

Diamond Member
Aug 18, 2012
3,974
0
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Looks good on paper. Imagine what zen & hbm can do on 14nm in dx12 games instead of this crappy cpu arch on 28nm in bloated dx11. Man - i will shut my eyes for that . We are in for some improvement the next 2 years.

AMD is the company of the future, and it will always be.
 

mrmt

Diamond Member
Aug 18, 2012
3,974
0
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so except amd bash nothing else to say?
its remarkable what amd is able to do withing their current state...

I'm waiting for the real numbers. AMD marketing department isn't exactly what I would call forthcoming, especially when hyping their new products. Where's Mullins btw?
 

Fjodor2001

Diamond Member
Feb 6, 2010
3,938
408
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That's pretty good, isn't it? About on par in MT with Intel Broadwell 5200U (CB 15 @ 263), and in ST with Intel Broadwell 5010U (CB 15 @ 86). For reference see this.

Also, the iGPU is much better on the AMD APU.

That they have been able to achieve this on 28 nm, when Intel is on 14 nm is pretty amazing. I think AMD's uArch engineers should be applauded for this.
 
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pablo87

Senior member
Nov 5, 2012
374
0
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I'm very impressed by what they've achieved considering what they have to work with:

no new core architecture, no new process, no new GPU architecture, no new memory.
 
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