Exynos 5 Octa demo

See the latest 8-core processor technology in action on common apps

Samsung announced yesterday that come Q4 it would have technology in its new Exynos 5 Octa processors to take advantage of all 8 cores simultaneously, and today ARM has released videos showing the processors in action. In a handful of technical demo videos (that are drastically more informative than Samsung's commercialized video), ARM shows off how the new technology can move processing between the four A15 cores, four A7 cores or the GPU as needed in any number of ways that are most efficient.

The demos show off the processor crunching along on QuickOffice documents and Angry Birds Rio, along with a demonstration of processing being handed over to the GPU when viewing images. As the demonstrator moves around through an app, you can see the processor dynamically switching between combinations of "big" and "little" cores as necessary, rarely kicking on the more power-hungry A15 cores even when playing a game. This is a drastically more efficient use of an 8-core processor, and a big improvement over Samsung's previous implementation.

This new technology is coming with the Exynos 5 Octa 5420 processor, which will be available in consumer-facing products starting in Q4 2013. You can see all three videos embedded after the break, which are quite interesting if you're into this sort of technical demonstration.

Via: Engadget


Reader comments

ARM demos Exynos 5 Octa distributing tasks over all 8 cores in new videos


I wonder if Qualcomm is working on something similar? I know the 800 is kind of like an all-in-one version of the X8 (GPU/Quad-core CPU/continual sensor monitoring/always-on keyphrase listening) (or the X8 is a decoupled version of the 800, depending on which company you like better), and this seems to be something akin to AMD's Fusion concept, where the SoC distributes a computing load to the best (here, most efficient) processing cluster at the hardware/kernel level, and the OS otherwise runs normally.

No matter what, mobile tech is definitely not slowing down anytime soon!

The S800 uses better cores than the x8.
It also has two more ARM cores.

The Snapdragon 800 is in a completely different class than the x8.
Anyway, mobile tech is heating up.
WIth Apple's 64bit ARM implementation, the race is on.

It makes me wonder why Apple went with x64 support. Mobile devices use less than 4GB of RAM, and data processing is typically going to be done in small chunks. I don't see the need for it, but I would love to know their thought process. Apple has largely stayed out of the spec wars until this generation of iPhones, so I can only assume they have a good reason.

If Samsung doesn't release an update for the S4 i9500 to allow for this, I will never buy a Samsung device again. Hell, I might even go back to Apple... :/

this processor is due next year, so why would you expect an "update" to a, by then, year old phone like the S4 ?

Seriously how would you like them to apply this "update"? Would you like them to pay for shipping, swap out your SOC and ship it back while also doing the same for the over 30 million devices that they would have sold by q4? But yeah please go back to Apple, they would simply send magical gnomes over and swap out that chip for you over night as you dreamt about their excellent customer service and do anything for the customer motto at rock bottom prices... I'm sure Apple is working on updating all iPhone 5 models to support 64 bit...

In the videos, the narrator made it sound like it was just a special multiprocessing kernel that enabled the feature.

In the videos, the narrator made it sound like it was just a special multiprocessing kernel that enabled the feature.

An update won't be coming from Samsung for your phone however it is possible to use all 8 cores if you root and flash a kernel that allows such a thing.

Posted via my Galaxy S4 Google Edition

What the videos show is what most of us already know... phones/tablets almost never use more than 2 cores worth of CPU. A user would never know the difference between this 4 + 4 and a 2 + 2.

It is more interesting to see the "big vs. little" core distribution.

What the third video showed is that even an average app like QuickOffice uses all 8 cores.

With so many apps running in the background today doing periodic actions and sending notifications or changing settings or whatever you configure them to do, multiple cores is a good thing.

You can argue that you won't see any performance difference between a 8-core (A15/A7) big little processor and one 4-core (A15) processor, but the whole point of this configuration is less power consumption.

But you can certainly see a difference between a dual-core and a quad-core CPU in today's Android with today's Android apps.

No, it didn't show that. It showed the load could be spread across them, but in no near instant was any more than two saturated; meaning that 2+2 would have worked just fine instead of 4+4.

I always thought that multiple-cpu or multiple-core utilization was always a software shortcoming. As tasks are thrown at the OS (ie: playing music, opening a picture, etc...), the operating system should be distributing the various tasks to the individual cores. That's how I understand it when it comes to desktops. Doesn't this also apply to tablets and phones?

Yes.. And the Linux kernel is fairly good at this. It doesn't always make sense for an app to use multiple threads though.. Depends on the task.

What I suspect they're doing here is distributing the load of a single thread over multiple cores. That requires some rather clever voodoo to make sure it all stays in sync.

Posted via Android Central App

Looks great, now do something about the terrible storage/emmc performance

Posted via Android Central App

It's amazing that we'll pay for all of these processors, yet most of them don't work. I'm really liking the new Exynos 5 octa.