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Dual Core Question

I did a search but couldn't come up with exactly the question I have. When they say a phone has a 1GHz dual core processor, does that mean it has 2, 1GHz processors, or is it 2 500MHz processors (adding up to 1GHz)? Can someone help me out here?

2 1ghz processors

Akulamenuri said:
2 1ghz processors
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Yh, what he said!
Sent from my GT-I9000 using XDA App

It has 2 1Ghz processors on one die but that doesn't make it a 2Ghz. I've seen when people sell computers they said something like 'it has a 12Ghz Processor!!!' and that's wrong.
Here is some knowledge: http://en.wikipedia.org/wiki/Multi-core_processor

Qualcomm's Dual-core cpu inferior to others?

So I visited www.phonearena.com yesterday and saw the news about the HTC Pyramid.At first I thought wow,Qualcomm and HTC won't only get left behind but will have about the same technology and will run at higher frequencies.
But then I remembered something that troubled me.I remember reading somewhere that Qualcomm's dual-core CPUs will be based on the current-gen Cortex-A8 by ARM,while others,like Samsung's Orion,will be using the next-gen Cortex-A9 that is superior in both perfrormance and consumption,while being designed especially for dual-core CPUs,unlike the A8.
What's your take on this guys?

No one?
Sent from my Desire HD using XDA App

Strongly agree

i hope this isn't true. tegra 2 outperformed old cpu's with only one core running! that's because it's Cortex-A9. now, if it was Cortex-A8, i don't think there would be much of a difference.

In fact i think it is superior to the tegra 2 or Orion plat form despite being an cortex A8 architecture, but it is not a long term solution point proven as Qualcomm is developing it A9 counterpart the MSM 89xx
How it is superior? Well between A8 and A9 architecture to my knowledge there isn't much of a difference, the major one is enhanced soc and the capability to use DDR3 ram instead of being limited to ddr2
But how these two doesn't matter in the short term, well the first one is obvious because Qualcomm doesn't use just a Normal Cortex A8 architecture ( was used on the first gen of snapdragon) as the second generation MSM8255 used on the desire HD for exemple has an enhanced soc and cach point proven when compared to a lets say Omap 3 or hummingbird in every cpu benchmark i believe the MSM comes on top(correct me if i m wrong).
The second point which is about Ram, i don't believe we will be seeing DDR3 ram on smartphone anytime soon so at this it is a kinda useless advantage.
Now add to that if the rumors are correct that one cpu can be switched off if the charge is low then while the on tegra 2 which use a dual core architecture and not a dual cpu architecture.
Edit: this is true + Asynchronis clocking for each core!
Also in terms of graphics, the MSM8x60 comes with adreno 220 which is definitly faster than the adreno 205 almost as fast as the SGX540 and which is rumored to be faster than the GPU in tegra 2, the geforce, as for the Orion is believed to get the SGX543mp2 but Orion is not coming anytime soon, and probably will hit the market once tegra3 and MSM89XX is almost there (which comes with Adreno 300)
Hopefully this does help you, i know that not everything i mentioned is accurate, but i ll invite you to watch this
http://www.youtube.com/watch?v=FdVw9uBIr5I

But how these two doesn't matter in the short term, well the first one is obvious because Qualcomm doesn't use just a Normal Cortex A8 architecture ( was used on the first gen of snapdragon) as the second generation MSM8255 used on the desire HD for exemple has an enhanced soc and cach point proven when compared to a lets say Omap 3 or hummingbird in every cpu benchmark i believe the MSM comes on top(correct me if i m wrong).
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Synthetic benchmarks like that though don't gauge real life performance though.

vbetts said:
Synthetic benchmarks like that though don't gauge real life performance though.
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I do agree with you, but they do give a scal for the performance especially when there are different types that relies on a different system to test the perfomance.
In real world you have to agree that MSM8255 is the fastest CPU out there atm just look at how the Desire HD is a screamer! or even the G2/Desire Z with the same CPU but clocked 800mhz does a pretty great job even compared to the latest omap3/hummingbird phones.

Definitely, the MSM8255 45nm matches the old MSM8250 65nm even when the stock clock in the Z/G2 is only 800 mhz, versus that extra 200 mhz. The gpu is lacking compared to others.

vbetts said:
Definitely, the MSM8255 45nm matches the old MSM8250 65nm even when the stock clock in the Z/G2 is only 800 mhz, versus that extra 200 mhz. The gpu is lacking compared to others.
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No,the GPU of the Desire Z/HD only lacks against the SGX540 of the Galaxy S!
Sent from my Desire HD using XDA App

kurolife said:
In fact i think it is superior to the tegra 2 or Orion plat form despite being an cortex A8 architecture, but it is not a long term solution point proven as Qualcomm is developing it A9 counterpart the MSM 89xx
How it is superior? Well between A8 and A9 architecture to my knowledge there isn't much of a difference, the major one is enhanced soc and the capability to use DDR3 ram instead of being limited to ddr2
But how these two doesn't matter in the short term, well the first one is obvious because Qualcomm doesn't use just a Normal Cortex A8 architecture ( was used on the first gen of snapdragon) as the second generation MSM8255 used on the desire HD for exemple has an enhanced soc and cach point proven when compared to a lets say Omap 3 or hummingbird in every cpu benchmark i believe the MSM comes on top(correct me if i m wrong).
The second point which is about Ram, i don't believe we will be seeing DDR3 ram on smartphone anytime soon so at this it is a kinda useless advantage.
Now add to that if the rumors are correct that one cpu can be switched off if the charge is low then while the on tegra 2 which use a dual core architecture and not a dual cpu architecture.
Edit: this is true + Asynchronis clocking for each core!
Also in terms of graphics, the MSM8x60 comes with adreno 220 which is definitly faster than the adreno 205 almost as fast as the SGX540 and which is rumored to be faster than the GPU in tegra 2, the geforce, as for the Orion is believed to get the SGX543mp2 but Orion is not coming anytime soon, and probably will hit the market once tegra3 and MSM89XX is almost there (which comes with Adreno 300)
Hopefully this does help you, i know that not everything i mentioned is accurate, but i ll invite you to watch this
http://www.youtube.com/watch?v=FdVw9uBIr5I
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Click to collapse
Ok,you convinced me!I'll be buyinh htc again!
Sent from my Desire HD using XDA App

vbetts said:
Definitely, the MSM8255 45nm matches the old MSM8250 65nm even when the stock clock in the Z/G2 is only 800 mhz, versus that extra 200 mhz. The gpu is lacking compared to others.
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As lotis said the only GPU that is faster than the Adreno 205 is the SGX540 and by a very slight marging in 3D while the Adreno wins in terms of 2D. The thing with Adreno GPUs is that they are clocked with the CPU and i believe the comparaisons were done with a G2 vs SGS + lagfix and froyo , i believe the GPU on the Desire HD does have a higher clock than the one on the G2 and thus perform better but again is this a fact or just another rumor if someone could confirm this..
But for a fact we all know that a stock G2 on pure android does 1600-1800 Quadrant score and a pure desire HD does a 1900-2100 on Android + sense out of the box

tolis626 said:
Ok,you convinced me!I'll be buyinh htc again!
Sent from my Desire HD using XDA App
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i m looking forward to the pyramid hopefully HTC will show it on the MWC (but im afraid there is a chance that they won't because they've just released the desire HD counter part in the US aka thunderbolt and inspire 4G) or else i might be tempted by the Motorola Atrix

whats up with all the fear and worries ? quandrant for tegra2 is a mere 1911 . it will get its a** kicked by anthing qcom makes in 2011 .
that said , there is a low possibility quandrant only runs single core enabled on quadrant , but what makes u sure that other apps will run dual core then ?

souljaboy said:
whats up with all the fear and worries ? quandrant for tegra2 is a mere 1911 . it will get its a** kicked by anthing qcom makes in 2011 .
that said , there is a low possibility quandrant only runs single core enabled on quadrant , but what makes u sure that other apps will run dual core then ?
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Nothing!That's the thing!
At the moment there is no software that takes advantage of both cores.I think that Gingerbread also has problems.So we have yet to see the performance gains by dual-cores.

kurolife said:
In fact i think it is superior to the tegra 2 or Orion plat form despite being an cortex A8 architecture, but it is not a long term solution point proven as Qualcomm is developing it A9 counterpart the MSM 89xx
How it is superior? Well between A8 and A9 architecture to my knowledge there isn't much of a difference, the major one is enhanced soc and the capability to use DDR3 ram instead of being limited to ddr2
But how these two doesn't matter in the short term, well the first one is obvious because Qualcomm doesn't use just a Normal Cortex A8 architecture ( was used on the first gen of snapdragon) as the second generation MSM8255 used on the desire HD for exemple has an enhanced soc and cach point proven when compared to a lets say Omap 3 or hummingbird in every cpu benchmark i believe the MSM comes on top(correct me if i m wrong).
The second point which is about Ram, i don't believe we will be seeing DDR3 ram on smartphone anytime soon so at this it is a kinda useless advantage.
Now add to that if the rumors are correct that one cpu can be switched off if the charge is low then while the on tegra 2 which use a dual core architecture and not a dual cpu architecture.
Edit: this is true + Asynchronis clocking for each core!
Also in terms of graphics, the MSM8x60 comes with adreno 220 which is definitly faster than the adreno 205 almost as fast as the SGX540 and which is rumored to be faster than the GPU in tegra 2, the geforce, as for the Orion is believed to get the SGX543mp2 but Orion is not coming anytime soon, and probably will hit the market once tegra3 and MSM89XX is almost there (which comes with Adreno 300)
Hopefully this does help you, i know that not everything i mentioned is accurate, but i ll invite you to watch this
http://www.youtube.com/watch?v=FdVw9uBIr5I
Click to expand...
Click to collapse
I hope you're right!!

I didn't think it was possible for an A8 to be dual core

The dual core cortex a8 qualcomm is building is a heavily customized version. It has features from a9 built into the cpu.
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hey what do you say about the net quad core processors from nvidia.. ? smart phones will become computers and our laptops will be just a notebook..for music and bigger games

alexandru.j91 said:
hey what do you say about the net quad core processors from nvidia.. ? smart phones will become computers and our laptops will be just a notebook..for music and bigger games
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My laptop already is for surfing the net only because I prefer the large keyboard(it's a 17 incher after all ).Everything else I do with my smartphone,which has a 25% share of my gaming time.I also have a ps3!
Now,quad-core CPUs will first be for tablets(August 2011) and then for smartphones(Fall 2011?Maybe).These will pack some things like 12-core GPUs etc.Tests have already shown that they beat many dual-core x86 CPUs.What's next?Dunno,but I surely wanna see!

The next computers is possible, but relatively weak computers per say. But can any of our phones run crysis or crysis 2? Are they even remotely capable of generating over 10fps of it? Even the MALI 400MP, Tegra 2, adreno 220 or power vr SGX543 can't manage that. I don't think we'll be seeing any SoC's with that sort of power until maybe two years?
Point being, phones will never hold the same amount of power a computer can output. So computers will stay. Who's to say computer SoC's haven't been improving? sandybridge, quantum processing, six cores core i9, 48 cores? No one cares for computer news anymore?
Anyways onto the topic, looking at the new gpu benchmarks posted of the dual core snapdragon, 1.5ghz. They're making the other cpu's look bad. So maybe the SoC isn't that bad after all. looks like it was a prototype also so the finished product could be even better. Source:
http://blog.gsmarena.com/the-new-1-...sm8660-got-benchmarked-meet-the-new-champion/

Dual core or quad core

Im thinking of a new phone but im perplexed. Should i get a dual core now like the Note or the Nexus or should i try and wait for a quad core? I dont usually game pn my phone, i have a Galaxy Tab for that.
Sent from my LG Optimus V using Tapatalk

people would tell you to get the quad, but personally I wouldn't cause
a : No app needs THAT much power yet, ( I might be wrong here. )
b : Battery life.

JunyuT. said:
people would tell you to get the quad, but personally I wouldn't cause
a : No app needs THAT much power yet, ( I might be wrong here. )
b : Battery life.
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I would tend to agree with you.
Especially if your not worried about games.
Sent from my G2X.
Rocking stock CM 7.2.0-RC1

While I agree with the guys above, but I'm also in the same boat as the TC. I'm currently upgrade eligible and I've thought about buying a dual-core phone as I currently have an Aria but I think I've decided to wait until the Galaxy S3. If any of the rumors are true about it, it wont be out of date by my next upgrade.

deleted

The only "announced" quad cores are the huwai whatever its called(sorry dont remember the name of the phone). And the htc one x. Unfortunatly the htc will not have a quad core in america yet because the tegra3 is not lte compatable so i think we all gonna have to settle for dual core this year. I could be wrong but it seems like we wont get a quad for a while yet.
Sent from my PG06100 using XDA

Luckily I just upgraded to the Samsung Glide in November but I know what you mean. Why go Dual core if you can get Quad core and be set for a good amount of time. The only thing I worry about quad core is will it eat up battery power?

My dual core is plenty and it doesn't even have dual core optimization ics OS yet... I can't think of any reason to need a quad core. It's like using a server to power notepad
Sent from my Energized HTC Ruby using Tapatalk 2 Beta 2 and WARP SPEED!

I'm using quad core. i feel ok
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What about Four+1?
What about 4-PLUS-1 technology? Any idea whether such systems actually make things run more efficiently using only 1 core (the "ninja" core) for low-end tasks? No idea about this, just floating it to see what news there is out there about this technology.

First of all based on ur bugdet
Second quad core rocks but if u don't need intensive processing with ur smartphone I would say go for the galaxy note its amazing
Sent from my HTC Vision using xda premium

Dual core most people will tell you quadcore is faster than dual core this is false. Just because you have two more of something doesn't mean anything if you can not use it properly. This is why tegra 3 as you see gets beat by Qualcomm krait (dual core) and Ti omap 5 (dual core). Its not about how many cores its about efficiency. Nvidia pretty much doesn't know what they are doing still in the phone market.

Quad core on a phone is not required imo.
I would stick with a dual core (My Galaxy SII has never given me any trouble) - quad core is pricy and no real need for it at present. But you can always do a future investment since you will eventually want a quad core.
I am personally waiting till my quad core phones drop in price and are required.

The note does look sweet but my luck sprint wont get it and htc said the one x will be the fagship phone for this year
Sent from my PG06100 using XDA

when android can fully utilize two cores, then we'll talk. Until then this is pointless. Quad core = less battery

Why no three cores?
I would like an upgrade as well lol, even if it means 1GHz Single core as I am currently surviving on 528MHz OC'ed to 692MHz (ofc single core) lol
It can handle everyday tasks all right but when you mention 3D games it dies (no gpu)

T__ said:
Quad core on a phone is not required imo.
I would stick with a dual core (My Galaxy SII has never given me any trouble) - quad core is pricy and no real need for it at present. But you can always do a future investment since you will eventually want a quad core.
I am personally waiting till my quad core phones drop in price and are required.
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The thing is, the HTC One X in the UK can be brought for £28.50 a month - I would have to pay more than that for the Galaxy Nexus. Quad core phones are no more expensive to buy than dual core - phone manufacturers realise that at present, they simply don't have a market for constant £41 on free prices.

For the people who say quad core means less battery are wrong. Nvidia is still using
A9 architecture and 40 mn. Ti omap5, exynos (5, something), Krait, all beat tegra 3 quad core technology. Ti omap 5 and krait are using 28mn and exynos supposedly using 32mn. All of these processors are a15 which pretty much destroys nvidia a9 architecture. They also use less power voltage and completing the same task. Compared to tegra 3.

Quad core is pointless if you don't have the battery to back it up. The Razr Maxx has a 3,300mAh battery. That should have been available a long time ago. Companies keep designing phones with bigger screens, more powerful processors, and energy-draining 4G LTE. This is all fun and well, but the battery is the most important part and need to be worked on more.

In some cases dual core processors can actually be faster than processors with quad core.

[Q] Dual-core clock queries?

This is a hardware question, I have a friend who owns a Desire HD, now he goes on and on about how Single core phones are just as powerful as Dual core phones because, and this is his theory, a Dual core phone that says it is clocked at 1 GHz actually has either core clocked at 500 MHz, whereas the core in a Single core phone is clocked at 1 Ghz flat.
This just honestly seems like a frankly rubbish argument that doesn't make much sense to me, however I want to know if he's right, is there any literature out there that proves either way. Is he right? Or is he just being a boner?

Kryptyle said:
This is a hardware question, I have a friend who owns a Desire HD, now he goes on and on about how Single core phones are just as powerful as Dual core phones because, and this is his theory, a Dual core phone that says it is clocked at 1 GHz actually has either core clocked at 500 MHz, whereas the core in a Single core phone is clocked at 1 Ghz flat.
This just honestly seems like a frankly rubbish argument that doesn't make much sense to me, however I want to know if he's right, is there any literature out there that proves either way. Is he right? Or is he just being a boner?
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long story short, he is wrong. keep in mind dual core s different from dual processor. the processor of a dual core simply allows 2 instructions to be carried out at onece adding performance to programs that have lots going on at the same time, but is still the same otherwise. They seriously help with multitasking so on android they would really help .

lkrasner said:
long story short, he is wrong. keep in mind dual core s different from dual processor. the processor of a dual core simply allows 2 instructions to be carried out at onece adding performance to programs that have lots going on at the same time, but is still the same otherwise. They seriously help with multitasking so on android they would really help .
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Correct! It allows 2 different "threads" to be computed at the same time. Your friend isn't all wrong though. Any app has to fully support dual threading. If it doesn't you will see the same performance from a 1ghz dual core phone and a 1ghz single core. Also remember the architecture of the CPU is important. In many cases a 1ghz phone may perform better than a 1.2ghz phone.
Sent from my MB865 using XDA

Well, almost.
Dual core means there are two independent processing units on the same chip. The chip itself operates at 1gigahertz, and that generally applies to anything on that die.
so your friend is wrong, as both cores run at 1 gig, but a lot more factors relate to actual performance.
In most cases, single core will not perform as well as a dual core at the same speed. (assuming they are the same arch)
Sent from my MB865 using XDA

Some dishonest Chinese sellers will do things like this.
Some places you'll see dual core NEC EV2 based tablets as "1ghz" even though it's two ~500mhz cores.
Other places you'll see a single core device deceitfully advertised as "dual core" as it includes a GPU in addition to the CPU.
They'll then add the GPU and CPU frequencies together and sell a 1.1ghz device as 1.5ghz.
(And don't get me started about seeing "Cortex A10" in the specs)
So long as we're discussing legitimate specifications, your friend is wrong

The most important thing is.... To tell your friend he is totally true.. When he revises his theory somedays later, then listen to him.
Sent from my ME865 using XDA

It really depends on the apps that you are running. Gingerbread does not fully support dual core processors but the Android (linux) kernel does. So if the apps you are running are written to take advantage of the extra core, they will run faster on a dual core phone. Where it does help to have an extra core is multitasking, with a dual core phone you will be able to smoothly run more apps at one time. But if you benchmark an app that only utilizes one core on both a single core and a dual core phone, the results will not automatically favor the dual core phone.

HTC One X+ Leaked (Again!)

http://www.youtube.com/watch?v=fI0iVowz2zA&feature=plcp
It sounds amazing!

theandroidrooter88 said:
http://www.youtube.com/watch?v=fI0iVowz2zA&feature=plcp
It sounds amazing!
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"The device will also pack in quite a punch with an Nvidia AP37 1.6GHz quad-core processor and a 1.7GHz single core, 32GB ROM and 1GB RAM. "
Between these two options, I'd prefer the 1.6GHz quad-core rather than a 1.7GHz single core...

francocm said:
"The device will also pack in quite a punch with an Nvidia AP37 1.6GHz quad-core processor and a 1.7GHz single core, 32GB ROM and 1GB RAM. "
Between these two options, I'd prefer the 1.6GHz quad-core rather than a 1.7GHz single core...
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Who wouldnt? It will have both. It is part of the Tegra 3's 4 + 1 core thingy.

Have you seen the LG Optimus G....might Rival this device
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