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Old 10th Jan 2013, 12:35   #1
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Samsung announces eight-core Exynos 5 Octa SoC

Prepare for dual-processor, eight-core smartphones.
http://www.bit-tech.net/news/hardwar...xynos-5-octa/1
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Old 10th Jan 2013, 13:03   #2
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Seriously why do you need 8 cores on your phone?
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Old 10th Jan 2013, 14:15   #3
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Oddly enough I think Nvidia have it right here, why does anyone need 4 low power cores to check emails and Facebook?
Save the die area and make the high power chip better.
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Old 10th Jan 2013, 15:14   #4
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Quote:
Originally Posted by damien c View Post
Seriously why do you need 8 cores on your phone?
Hurry up and go to sleep.
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Old 10th Jan 2013, 15:50   #5
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Quote:
Originally Posted by damien c
Seriously why do you need 8 cores on your phone?
You probably don't... a tablet on the other hand...
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Old 10th Jan 2013, 16:32   #6
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Same question is easily applied to tablets.

Very few of them have any usage for that proccessing power.

The screens require GPU grunt not cpu cores.

Also seems like Samsung intends to drop the tegra platform which is a bit of a shock. but not a huge surprise in the long term as they can develop there own chip to keep pace with the competition and not need to be at the mercy of nvidia and company.

Can not see samsung developing this chip then not using it so i guess Nvidia just lost a huge contract for chips. Tegra 4 looks like been left to fight for the lesser rivals who don't sell enough and are all struggling to stay in business.

Also a big loss for qualcomm who have developed there next gen chip. ( samsung used both qualcomm and nvidia chips in last gen phones )

Samsung and Apple together are showing the power of dominating the profits for so long they have both effectively removed the need for outsourcing there cpu designs. Which will give them another advantage above the competition.
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Old 10th Jan 2013, 16:39   #7
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Also a big loss for qualcomm who have developed there next gen chip. ( samsung used both qualcomm and nvidia chips in last gen phones )
The majority of Samsung devices use previous generations of Samsung Exynos SoC processors, not Nvidia Tegra or Qualcomm Snapdragon. Wikipedia has a list, although some phones used third-party processors - including Tegra and Snapdragon - in certain countries but Exynos in others. Go figure.

For those arguing that a smartphone doesn't need eight cores: did you see the bit of the article where Samsung claimed the Exynos 5 Octo offers 70 per cent better energy efficiency than the quad-core Exynos 4?
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Old 10th Jan 2013, 16:50   #8
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that better efficiency is what I'm after for... my S3 is great but sometimes the battery gets drained before the endof the day... I wouldn't mind selling this phone to get the S4 if it has those specs...
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Old 10th Jan 2013, 16:52   #9
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Funny thing is, that allmost no tablet or smartphone has any multi-thread capabilities, let alone having multiple apps running simultanously.

So imho it would be far better to concentrate on single-core performance and increase GPU-performance along with it.

More =! better in some cases.
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Old 10th Jan 2013, 18:00   #10
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Quote:
Originally Posted by jrs77
Funny thing is, that allmost no tablet or smartphone has any multi-thread capabilities, let alone having multiple apps running simultanously.

So imho it would be far better to concentrate on single-core performance and increase GPU-performance along with it.

More =! better in some cases.
If you read the article it says that there would be a 70% increase in efficiency. Sure, more cores doesn't always mean better performance, but a single core isn't enough, as it would have to take care of all background tasks and the more prominent ones like gaming.
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Old 10th Jan 2013, 19:14   #11
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These companies need to focus on the phones performance as a phone ie:reciever sensititivity how it handles signals and holds onto the signal from a mast and also transmit and recieve audio. All we seems to get in reviews of phones theese days is how it handles games and how good the camera is its a phone for god sake lets here how it performs in its main role if I get lost in the middle of nowhere amd my car stalls I need to know i can relie on my phone to get me out of trouble no good it being able to play games at fast fps if it cant hold onto the signal from a mast.
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Old 10th Jan 2013, 19:32   #12
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Quote:
Originally Posted by damien c
Seriously why do you need 8 cores on your phone?
The same reason my amp goes to 11, so I can lord it over everyone else who's amp only goes to 10
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Old 10th Jan 2013, 23:17   #13
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I'd be better if Samsung had developed better batteries instead, but I'll take it.
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Old 11th Jan 2013, 00:23   #14
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Quote:
Originally Posted by jrs77 View Post
Funny thing is, that allmost no tablet or smartphone has any multi-thread capabilities, let alone having multiple apps running simultanously.
Except that devices with multi window support happen to be from Samsung.

Besides, calling it an 8 core cpu is very misleading, just like we abandoned the concept of single core processors we will abandon the current approach to multiple cores, what Samsung is doing is creating 4 cores of one type and 4 of another, its the next big revolution in cpu design, have different cores so you can run each thread on the type of cpu ideally suited for it, in theory at least, because software will need to catch up.
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Old 11th Jan 2013, 00:43   #15
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Quote:
Originally Posted by jrs77
Funny thing is, that allmost no tablet or smartphone has any multi-thread capabilities, let alone having multiple apps running simultanously.
+1 from me - currently mobile OS's are not making the most of multicore processing.

Quote:
Originally Posted by jrs77
So imho it would be far better to concentrate on single-core performance and increase GPU-performance along with it
I'd counter that by saying that multicore is the future, it is, in fact the OS and software that needs to become multithread and core affinity friendly (use different cores for different apps intelligently and use all cores for one app when the demand requires it.... google/linux it's over to you, but if Microsoft do it first and do it right, they could win market share quite easily.
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Old 11th Jan 2013, 11:31   #16
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Geeks buy PC's and tend to make rational judgements about CPU performance.

EVERYBODY buys phones and if one trumps the other with 'MOAR CORES!' a lot will buy just for that.
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Old 11th Jan 2013, 12:00   #17
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For those of you who are saying why do you need that in a phone or tablet I agree completely.

However, I will direct you to the Google Chromebook which uses the old Samsung Exynos processor. Arm is actually making a little (read minute) headway in the notebook market. I am considering buying one and putting Arch on it because it outperforms an Atom extremely cheaply.
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Old 11th Jan 2013, 20:05   #18
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Quote:
Originally Posted by damien c View Post
Seriously why do you need 8 cores on your phone?
It only uses 4 of the cores at once. There are 4 really fast but less efficient cores, and 4 slower but *much* more efficient cores. Most of the time, the 4 fast cores are completely switched off, and everything runs on the slow cores. Then, when the OS notices that the slow cores are struggling to keep up, it moves the program to the faster cores in less than 20us. It's explained in the Samsung CES video, and there's a demo from 24:10 onwards

http://www.youtube.com/watch?v=GDJ67df0p6A#t=23m10
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