AMD Carrizo Pre-release thread

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DrMrLordX

Lifer
Apr 27, 2000
22,031
11,616
136
Right, Carrizo can adjust clockspeeds for iGPU and CPU dynamically to shift loads and stay within cTDP target. What it won't do is stay still for very long in changing workloads. It's quite a bit more sophisticated than Kaveri in that respect.
 

cbn

Lifer
Mar 27, 2009
12,968
221
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Now if only we could get some A8-8600P and A10-8700P testing as well.

I would just love to see what those APUs (35W/42W cTDP) could do at 1080p low for Valve games in Linux Mint 17.2, Ubuntu or SteamOS.

It could potentially work pretty nice due to Valve games traditionally good quad core scaling. And at 1080p low Valve games aren't that demanding on memory bandwidth so dual channel DDR3 1600 (with the iGPU running lower clocks) should work.
 
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cbn

Lifer
Mar 27, 2009
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What would be truly interesting is if of these assh...oems built a carrizo ultra slim with 8gb of ddr4. That might create some buzz.

They dont want to upset Intel :whiste:

If the OEMs thought they could make the same or even more money by building AMD-based systems with the characteristics that monstercameron described, then why would they care about "upsetting" Intel?

Quite a few reasons top among them:

* Intel could reduce their advertising contribution for that OEMs products, i.e. no cash/rebate/discount for including "Intel Inside" + Intel audio trademark in their OEM advertising.

* Lower on the list for Intel allocation of products, other OEMs getting the in demand SKUs first and in larger quantities.

* Lose discounts and have rebates lowered or eliminated.

So OEMs would need to be confident AMD could keep delivering to make up for above business changes.

If this is true then we would need an OEM that has less to lose than the other OEMs?

Maybe even a Whitebox style notebook (with an option for a low cost "OEM volume price" MS license already built in for those that want to use Windows)?

Maybe a ECS notebook? With a ECS branded Phison controller SSD? (This laptop sold on Newegg and Amazon). I would probably take 35W A8-8600P (with no dGPU) if they got the price right.
 
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cbn

Lifer
Mar 27, 2009
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221
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Most of the 8700P products seem to be configured for a 15W TDP, sadly.

I would say all of them.

Whether the Carrizo chip is 15W or 35W it costs the same.

So I wonder how much more a 35W laptop costs to make compared to a 15W laptop?

Or maybe with Intel using 28W for its processors these days it would be cheaper for an AMD OEM to step up to a modern 45W chassis (and use 42W cTDP for Carrizo)?
 

NTMBK

Lifer
Nov 14, 2011
10,322
5,352
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Whether the Carrizo chip is 15W or 35W it costs the same.

So I wonder how much more a 35W laptop costs to make compared to a 15W laptop?

Or maybe with Intel using 28W for its processors these days it would be cheaper for an AMD OEM to step up to a modern 45W chassis (and use 42W cTDP for Carrizo)?

A 15W laptop is thinner, lighter and more attractive, and more likely to sell for a good price than the 35W laptop.
 

dark zero

Platinum Member
Jun 2, 2015
2,655
140
106
A 15W laptop is thinner, lighter and more attractive, and more likely to sell for a good price than the 35W laptop.
For that is better the new lower priced Core M.... Even with Pentium M is enough (if it had HT) or even a Core m3 is OK
 

Maxima1

Diamond Member
Jan 15, 2013
3,538
759
146
A 15W laptop is thinner, lighter and more attractive, and more likely to sell for a good price than the 35W laptop.

A 35W laptop can be thin. Look at Razor laptops. That's much more TDP. What it really is is that it ****s up the segmentation OEMs have carved out, though in Carrizo's case, it's not as efficient by a long shot. Customers are stupid and ignorant. Why would I buy a gimped GPU that's hardly better than the iGPU? Why would i pay a premium to have the U core i7? Why would I keep paying the same price for the battery to get smaller and smaller, etc.?
 
Aug 11, 2008
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A 35W laptop can be thin. Look at Razor laptops. That's much more TDP. What it really is is that it ****s up the segmentation OEMs have carved out, though in Carrizo's case, it's not as efficient by a long shot. Customers are stupid and ignorant. Why would I buy a gimped GPU that's hardly better than the iGPU? Why would i pay a premium to have the U core i7? Why would I keep paying the same price for the battery to get smaller and smaller, etc.?

Yes, but the Razor is a premium product, what 2000.00 or thereabouts? So they can afford to put in a robust cooling system. Carizzo is not, so OEMs want the cheapest, easiest to produce device possible.

On top of that, even at 35 watts, carizzo would be a compromised solution for gaming, with more gpu than a non-gamer needs and modest cpu performance. Granted most older games and a fair number of less intensive newer games would be playable, but for a really robust gaming solution you still need something on the order of a GTX 960m. So there would be a market for it-- those who want to play games, but not all of them, and at modest settings. How big is that market?
 

Maxima1

Diamond Member
Jan 15, 2013
3,538
759
146
Yes, but the Razor is a premium product, what 2000.00 or thereabouts?

Well, of course it is, but that's what segmentation is about. A 1080p panel that's not IPS, for example, hardly cost more than the 768p penels, yet we see those still. It's obvious why. Same goes for other features.

So they can afford to put in a robust cooling system. Carizzo is not, so OEMs want the cheapest, easiest to produce device possible.
i hardly think it would cost much more. The Razer isn't even liquid cooling then factor in that it's a much higher TDP than a 35W APU.

On top of that, even at 35 watts, carizzo would be a compromised solution for gaming, with more gpu than a non-gamer needs and modest cpu performance.
I'm not referring to that. Of course there are much more non-gamers who who would rather have a more efficient processor. However, there's still a market obviously otherwise I wouldn't see all these stupid weak GPU setups. They put mostly only stupid weak GPUs in the non-gaming segment because again, segmentation.
 

cbn

Lifer
Mar 27, 2009
12,968
221
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Whether the Carrizo chip is 15W or 35W it costs the same.

So I wonder how much more a 35W laptop costs to make compared to a 15W laptop?

Or maybe with Intel using 28W for its processors these days it would be cheaper for an AMD OEM to step up to a modern 45W chassis (and use 42W cTDP for Carrizo)?

So I found out Intel does make a 35W mobile processor, the i3 6100H:

http://ark.intel.com/products/89063/Intel-Core-i3-6100H-Processor-3M-Cache-2_70-GHz

And the 45W H processors have a 35W cTDP down option (though I suspect many of them will be used a the full 45W spec with dGPU. The exception to dGPU would be the 45W GT4e model which would be used as a standalone).

In any event, I do hope we see some good modern 35W and 45W non-dGPU chassis from Quanta, Compal, etc that could be used by a Carrizo OEM. I personally would like to have my Carrizo optimized for 42W while on AC power (so I am hoping some good 45W non-dGPU chassis exist).

P.S. I also noticed that Elitegroup (OEM) is also a notebook ODM:

https://en.wikipedia.org/wiki/List_...rers#Original_design_manufacturers_.28ODMs.29

(Apparently this happened after the company purchases Uniwill back in 2006 --> https://en.wikipedia.org/wiki/Elitegroup_Computer_Systems )

After ECS's purchase of laptop manufacturer Uniwill in 2006, the company has also been making its mark in the design and manufacture of laptops, desktop replacement computers and multimedia products.
 
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cbn

Lifer
Mar 27, 2009
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So maybe ECS would be a good laptop manufacturer for 35W/42W Carrizo.

They could even use some of the chips for Mini-ITX boards.
 
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cbn

Lifer
Mar 27, 2009
12,968
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Yes, but the Razor is a premium product, what 2000.00 or thereabouts? So they can afford to put in a robust cooling system. Carizzo is not, so OEMs want the cheapest, easiest to produce device possible.

I did some research on the Razor laptop:

http://www.razerzone.com/gaming-systems/razer-blade

It has 47W CPU plus a 81W dGPU (970M GDDR5 3GB) in a 14" chassis that is .7" thick.

Pretty amazing dimensions for 128W worth of CPU and dGPU.

So that got me wondering how large a 35W APU laptop (that can be configured for 42W boost on AC power) without dGPU could be?

Obviously a tightly packed motherboard (that I'm sure the Razor has) is going to cost more than a budget one with the components spaced out more, but even on a budget level I'll bet someone could make a 35W/42W Carrizo laptop reasonably small (Carrizo is a SoC, so that is going to help).
 
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DrMrLordX

Lifer
Apr 27, 2000
22,031
11,616
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OEMs can do an acceptable job of cooling processors in the 35W range within a fairly small package. It costs them extra money to do so, and yes, adding more copper in favor of less aluminum will make it weigh more overall.

Sometimes OEMs do a pretty questionable job of figuring out where to cut corners. In the case of Carrizo, it really does need a cooling solution suitable for a 35W TDP rating, so that's one area where they should not be cutting corners, unless they just want it to be stuck in the 2.1 GHz range with 400-500 MHz iGPU clocks most of the time.
 

monstercameron

Diamond Member
Feb 12, 2013
3,818
1
0
interesting testing so far:
league of legends spectating
kaveri ~20-25fps @~35W
carrizo ~25-30fps @~30W

more performance less power.

note the kaveri machine has a ssd and a larger display


In the 3dmark icestorm test, I believe that carrizo is staying clocked a bit higher because the physics score had a ~20% increase while the gpu score slightly lower.
 
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Dresdenboy

Golden Member
Jul 28, 2003
1,730
554
136
citavia.blog.de
When I chose the bios setting it runs at a fixed 1.4ghz with no fluctuation. I will run some games and check the cpu clock soon. interestingly the cpu does clock higher with the bios setting.
As the the power setting, I tried the option in catalyst which you can choose a range of clock speeds. With the bios setting on dynamic clocking it will ignore the setting in catalyst and clock even upto 3+ghz. Maybe if I could modify the lowest p-state and static clock mode this could work but there are no tools I know of that can do this.

If you find some practical fixed frequency setting you could rerun the AIDA64 test overnight. The instruction where it "hangs" is the random number generator.

This is Haswell:
1971 RDRAND : RDRAND r16 L: [no true dep.] T: 88.41ns=300.50c
1972 RDRAND : RDRAND r32 L: [no true dep.] T: 88.46ns=300.67c
1973 RDRAND : RDRAND r64 L: [no true dep.] T: 88.46ns=300.67c

Which means a throughput of one instruction per 300 cycles.

Your Carrizo needs >2k cycles per instruction, making the throughput of each of these 3 loops about 2000 times slower than average fp instructions. This means minutes or even more than an hour. Yes, it's silly.
 

cbn

Lifer
Mar 27, 2009
12,968
221
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As an example of different cooling gear for different TDPs I thought these teardowns of the 13.3" and 15" Apple Mac Pro Retina (late 2013) models were interesting:

https://www.ifixit.com/Teardown/MacBook+Pro+13-Inch+Retina+Display+Late+2013+Teardown/18695



https://www.ifixit.com/Teardown/MacBook+Pro+15-Inch+Retina+Display+Late+2013+Teardown/18696



The first laptop is the 13.3" model with a 28W Haswell dual core.

The second laptop is the 15" model with a 47W Haswell quad core with Iris Pro graphics.

Copper heatsink size is about the same for both, but the 47W model uses two fans (each with blowing air into a very small aluminum finned area). This compared to the 28W model which only uses one fan, but notice the aluminum finned area is much larger.

So overall, I would say both 28W and 47W set-ups have the following amount of material:

Copper heatsink material: About the same for both the 47W and 28W
heatpipe: twice as much for the 47W
fans: twice as much for the 47W
aluminum finned material (this is the part next to the fan): About the ~same total weight for both, the 47W has less of it for each fan.

So it appears the amount of metal used for cooling isn't really that different between the two TDPS, but difference in ventilation is much in favor of the 47W.
 
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cbn

Lifer
Mar 27, 2009
12,968
221
106
Sometimes OEMs do a pretty questionable job of figuring out where to cut corners. In the case of Carrizo, it really does need a cooling solution suitable for a 35W TDP rating, so that's one area where they should not be cutting corners, unless they just want it to be stuck in the 2.1 GHz range with 400-500 MHz iGPU clocks most of the time.

For 35W, maybe having a better fan design (with standard low profile copper heatsink and aluminum finned area) would help immensely.

Or maybe an OEM could even use two smaller netbook size fans side by side instead of one medium size fan for a 35W set-up with single aluminum finned area. Then when temperatures increase the second netbook size fan (further along the length of the heatpipe) kicks in.

Then for 42W boost (on AC power), perhaps provisions could be made for removing the battery so the chassis could receive extra ventilation.
 
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cbn

Lifer
Mar 27, 2009
12,968
221
106
Sometimes OEMs do a pretty questionable job of figuring out where to cut corners. In the case of Carrizo, it really does need a cooling solution suitable for a 35W TDP rating, so that's one area where they should not be cutting corners, unless they just want it to be stuck in the 2.1 GHz range with 400-500 MHz iGPU clocks most of the time.

For 35W, maybe having a better fan design (with standard low profile copper heatsink and aluminum finned area) would help immensely.

Or maybe an OEM could even use two smaller netbook size fans side by side instead of one medium size fan for a 35W set-up with single aluminum finned area. Then when temperatures increase the second netbook size fan (further along the length of the heatpipe) kicks in.

Then for 42W boost (on AC power), perhaps provisions could be made for removing the battery so the chassis could receive extra ventilation.

So I wonder how much two netbook size fans cost compared to one medium size fan?

Or with a ODM/OEM like ECS is this less of a issue since all they appear to make are Netbook level devices:

http://www.ecs.com.tw/ECSWebSite/Pr...D=3&TypeID=145&MenuID=225&childid=M_9&LanID=9

http://www.ecs.com.tw/ECSWebSite/Pr...yID=3&TypeID=48&MenuID=27&childid=M_9&LanID=9

Also, I wonder how much area two small fans side by side takes up compared to one medium size fan?

Power efficiency (and acoustics) of the two small fans vs. one medium fan at low TDP? medium TDP? high TDP?

Maybe one small fan could be spinning at very low rpm, with the second small fan kicking in at very low rpm at a certain temperature. Then as TDP rises both small fans spin up to higher rpm together?

P.S. Another possibility I think exists would be to design the 35W/42W Carrizo laptop as a 15w chassis when used for mobile. Then when the device is connected to AC power (and the battery removed) the BIOS automatically configures to 42W with the two small fans spinning up higher (with less restriction).
 
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alexruiz

Platinum Member
Sep 21, 2001
2,836
556
126
Well, I think we have a winner!

http://www.anandtech.com/show/9674/hp-announces-new-elitebook-with-amd-pro-aseries-apus

This ones have almost everything I wanted:
- M.2 slot for SSD
- 1080p screens (no IPS though, but SVA should suffice)
- backlit keyboard? probably

The only ting missing is eSATA, and I would have gladly traded the VGA for eSATA/USB combo (eSATAp) but oh well, you cannot win all of them.
Hope HP doesn't go bonkers on the pricing, keep it decent and they should sell a few
 
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