Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.



1306 posts

Uber Geek
+1 received by user: 35


Topic # 98705 5-Mar-2012 01:00 Send private message

Hi there. This might seem like a silly question but I was wondering what is Quad-Core in cellphones mainly used for/will it be used for?

I am more than likely going to choose the Sony Xperia S for my next smartphone, but im also considering the HTC One X. The Sony Xperia S looks as if it would be more than able to do everything I need (I dont push my smartphone to limits, root or any of that stuff), but I am also thinking about what the future will hold and obviously by this time next year Quad-Core will be in full swing (im guessing).

So I guess I have a few questions which all relate to the same thing. What is Quad-Core used for? Is there much of a difference between Quad-Core and Dual Core? What does Quad-Core do that Dual Core doesnt?

Cheers :D

View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2
3 posts

Wannabe Geek


  Reply # 590354 5-Mar-2012 01:34 Send private message

Interesting point, I always thought the only point of multi-core was fro multi-tasking, distributing threads over different cores. But who multitasks on a smartphone? That stuff got to be more about just playing one up on the competition/

1814 posts

Uber Geek
+1 received by user: 108

Subscriber

  Reply # 590366 5-Mar-2012 06:26 Send private message

Marketing?

1240 posts

Uber Geek
+1 received by user: 64

Trusted

  Reply # 590392 5-Mar-2012 08:31 Send private message

trig42: Marketing?

Don't forget: To ensure the battery goes flat quickly.

699 posts

Ultimate Geek
+1 received by user: 31


  Reply # 590395 5-Mar-2012 08:35 Send private message

I think it is mostly useful for multimedia, rich web and for a bit of one upmanship in the spec wars. Being able to play 1080p video and 720p games from your phone is impressive. I think the other idea is that the cores can also be divided up for graphics and cpu so games can be better and faster. As phones have more demands placed on them to be pocket computers, more cores doing more work makes sense.

Also as cpu's can now turn off cores to save power, quad core makes more sense because they are there if multi threading is required, but use little power if not. 
Heck, tegra 3 is a 5 core. 4 big ones and a little one for when not much processing is going on. 

237 posts

Master Geek


  Reply # 590413 5-Mar-2012 09:02 Send private message

muppet:
Don't forget: To ensure the battery goes flat quickly.


This, it is so that you have to charge your phone every 5-6 hours.




this is a slap in the face!

2260 posts

Uber Geek

Trusted

  Reply # 590422 5-Mar-2012 09:11 Send private message

shadybrothers:
muppet:
Don't forget: To ensure the battery goes flat quickly.


This, it is so that you have to charge your phone every 5-6 hours.


Actually, being a smaller chip, and also having 4 cores available, should mean the battery lasts longer.


Just as with the Transformer vs Transformer Prime

the 4 cores each run tasks, at lower clock speeds, than two cores at high clock speeds, if that makes sense?
(it might not, because I haven't had a coffee yet) 




I have moved across the ditch.  Now residing in Melbourne as a VOIP/Video Technical Trainer/Engineer. 

406 posts

Ultimate Geek
+1 received by user: 86

Subscriber

  Reply # 590436 5-Mar-2012 09:36 Send private message

+1 (for battery saving)

Also, you may only have 1 app open, but the phone itself is running several services in the background.

2603 posts

Uber Geek
+1 received by user: 50

Trusted
Subscriber

  Reply # 590479 5-Mar-2012 10:44 Send private message

bonker: Interesting point, I always thought the only point of multi-core was fro multi-tasking, distributing threads over different cores. But who multitasks on a smartphone? That stuff got to be more about just playing one up on the competition/


The phone multitasks all the time. Background sync while you're watching a video or playing MP3 tunes while someone is FTP-ing files from your phone (I've done it). 

Here is a video I made a while ago about multi-tasking on my old HTC Magic. 

You can do much more now on the more capable devices around now. 





____________________________________________________
If you're not curious, your brain is already dying...if not dead.



5844 posts

Uber Geek
+1 received by user: 282

Trusted
Subscriber

  Reply # 590482 5-Mar-2012 10:50 Send private message

Marketing, mostly. The Tegra 3 has 5 cores, one very low power, which is used when the thing isn't busy.

The screen takes most of the power on my tablet, not sure on phones. I find a phone with battery life of a day stupid and impractical, I still use an older design Nokia with a battery life of 3-5 days. I have computers everywhere I go, a tablet PC, the 30 minutes a day i'm away from a computer I can live without the internet.




Asus eee pad transformer
iPod 2G
Windows 7 PC
Lots and lots of Nikon camera gear

n4

684 posts

Ultimate Geek
+1 received by user: 2


  Reply # 590513 5-Mar-2012 11:18 Send private message

Having a core dedicated to the UI would have to be a good thing for smooth lag free performance.




Huawei P6, on 2degrees

gzt

3735 posts

Uber Geek
+1 received by user: 104

Subscriber

  Reply # 590523 5-Mar-2012 11:22 Send private message

n4: Having a core dedicated to the UI would have to be a good thing for smooth lag free performance.

Lol. Don't forget to tell Microsoft, Windows.

Watchmaker Wizard
2378 posts

Uber Geek
+1 received by user: 52

Subscriber

  Reply # 590540 5-Mar-2012 11:43 Send private message

muppet:
trig42: Marketing?

Don't forget: To ensure the battery goes flat quickly.


MultiCore CPUs will shutdown individual cores if they are not in use to save power. As mentioned elsewhere, all cores will fire up to get a job done quickly and then shutdown again when no longer required.


Multicore will help to some extent with video decoding, less so when the native GPU supports hardware assisted decoding.

To a large extent it is marketing, but if/when they get Ubuntu working as a Docked OS, that CPU power will be a welcome advantage.
       




136 posts

Master Geek


  Reply # 590857 5-Mar-2012 19:49 Send private message

Bragging rights, my phone has more cores than yours

1647 posts

Uber Geek
+1 received by user: 32


  Reply # 590915 5-Mar-2012 21:54 Send private message

Ramboss: Bragging rights, my phone has more cores than yours

Why stop there
My phone has more cores than your laptop!! 

pc

60 posts

Master Geek
+1 received by user: 2

Trusted

  Reply # 590972 5-Mar-2012 23:48 Send private message

nvidias speil: http://www.nvidia.com/content/PDF/tegra_white_papers/tegra-whitepaper-0911a.pdf

 1 | 2
View this topic in a long page with up to 500 replies per page Create new topic








Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when new jobs are posted to our jobs board:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:




News »

Trending now »
Hot discussions in our forums right now:

Forms of government for New Zealand
Created by charsleysa, last reply by KiwiNZ on 17-Apr-2014 13:46 (75 replies)
Pages... 3 4 5


Business vs Residential UFB, why the huge difference in cost??
Created by dman, last reply by dman on 16-Apr-2014 23:45 (22 replies)
Pages... 2


why does the tax payer have to pay for the prince and princess' 6 star holiday?
Created by joker97, last reply by Lazarui on 16-Apr-2014 12:56 (66 replies)
Pages... 3 4 5


Problem with NDSCam
Created by haydenmarsh, last reply by Benoire on 14-Apr-2014 21:28 (21 replies)
Pages... 2


MH370 - Call for Search & Rescue Help
Created by DS248, last reply by Sideface on 15-Apr-2014 16:40 (734 replies)
Pages... 47 48 49


Weather - Auckland
Created by networkn, last reply by DarthKermit on 17-Apr-2014 12:17 (17 replies)
Pages... 2


True cost of driving ..
Created by rayonline, last reply by alasta on 14-Apr-2014 20:43 (52 replies)
Pages... 2 3 4


galaxy s4 now on 4.4.2
Created by nzrock, last reply by Yabanize on 17-Apr-2014 13:39 (16 replies)
Pages... 2



Geekzone Live »
Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.