2012 Archives

[fiocco]

U said all the time i5, i5, i5... but with a i3 it's the same probleme! <throttling

[gpgalanis]

OK. So i did the stress test again for the CPU and for about 30 seconds it remained at 2.49 before dropping to 2.10 - 2.20. How can I stress both CPU &GPU?

[OrionBG]

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gpgalanis wrote:

OK. So i did the stress test again for the CPU and for about 30 seconds it remained at 2.49 before dropping to 2.10 - 2.20. How can I stress both CPU &GPU?

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run Furrmark together with Prime95

[jason2234]

ive been looking at the surface pro a bit to see how they have fixed this issue.

looks to me like they have the same clamping restriction just at a higher heat but after the last firmware update the surface pro uses the clamping more intelligently and shares out the clamp to suit the need. i.e rather than just making it 10 on the cpu and 5 on the gpu it gives more to the gpu if its not needed on the cpu therefore balancing it out.

so for example when i play tomb raider a lot of the strain is on the gpu and not the cpu so in this case when the device clamps because of the strain the surface pro would give me extra power to the gpu taking from the cpu because it doesn't need the cpu power giving better visual performance in game. When the gpu isn't need the clamp can take from the power of the gpu to give the cpu a bit more power giving me more horsepower for something like video encoding.

some work is being done on another site to look into this more but it would make sense. If this limit is present by chip design as Acer say then microsft have found the answer or intel have given the answer and next weeks bios update from Acer will have this same update.

Maybe Acer could give a more detailed reply to why the w700 cant do this or if it can when do they plan on doing so. maybe we're just asking the wrong question? maybe the throttling is a chip design as Acer say which would lead us to be requesting them to follow the same steps as microsoft and configuring the w700 to run the better designed clamping to give better performance.

hopefully this makes sense and hopefully ive not just not understood how the surface pro is now configured 😃

sorry for the spelling and grammar. thoughts?

[gpgalanis]

I agree with you. And to be honest I am quite happy with my tablet because I bought this tablet as an all around device rather than a game machine. So if instead of 2.5 I get after 30 seconds 2.1 then I can live with that. For me the light bleeding and the limited connectivity issues are more important. Unfortunately all the people that I asked see some light bleeding in their devices so nothing much that I can do about this and the wifi issue seems to be solved. So eventhough it not perfect it is close enough.

[Mucchan]

I think it's more related to temperature instead of time and it seems like Acer has picked a value that it too low (~60C) for the CPU/GPU to start throttling.

I do agree that the clamping should have been done more intelligently. In my case with the i3, while both CPU and GPU are being utilized, the CPU is still able to run full speed at 1800MHz while the GPU is being severely throttled to 350MHz 

[victoram]

The problem is the CPU having wattage priority, for games it's much better have 1ghz cpu and 800mhz gpu than 1.7ghz and 350mhz, a intelligent power management could help a little, but the increase of clamp limit will be way better

[dezaxatul]

At CES 2013, Intel announced that a new version of Acer Iconia will be released "later this spring".

That version would be 20% thinner, 20% better weight and would have one of these processors:

Core i5-3439Y @ 1.5 GHz turbo to 2.3 GHz for the CPU, and 350 MHz turbo to 850 MHz for the GPU (13W TDP)

Core i7-3689Y @ 1.5 GHz turbo to 2.6 GHz for the CPU, and 350 MHz turbo to 850 MHz for the GPU (13W TDP)

Both would have intel HD 4000 graphics.

What do you think of the performace, related to this current version:

Core i5-3337U @ 1.8 GHz turbo to 2.7 GHz for the CPU, and 350 MHz turbo to 1100 MHz for the GPU (17W TDP)

Is it worth waiting for it's release, since there's no official confirmation from Acer?

Taking into consideration I would like to play titles like Diablo 3, World of Warcraft or League of Legends on it, which would be the better version? (not as a primary gaming machine ofc, but as something that can play certain titles decently, if required).

I know it's early to talk about this, since the current version has throttling issues and we know nothing about the next one, but I would like to hear your opinion.

[jason2234]

I think the trottling at the moment is down to the GPU control as this is what Microsoft changed and has worked.

In terms of the new models the tablet will be about the same speed overall. The way windows tablets seem to be going at the moment is maintaining speed which is way faster than other tablets (android and Apple) but reducing weight and increasing battery life.

I think the next generation will just be that same thing basically just thinner and longer battery

[sakuragi]

Hello,

Do you think that acer manage better runtime than the surface pro by limiting the tdp to 10w? if that is the case is it possible to reduce the tdp of the surface pro to the same tdp to achieve better battery life? I'm much more interested in having better battery life than having turbo boost or gaming.

Thanks.