Samsung Exynos 5 Octa reference board demo

Samsung Exynos 5 Octa is the newest and baddest Exynos family chip, with four Cortex-A15 cores and four Cortex-A7 ones, arranged in an ARM big. LITTLE architecture to achieve the best power consumption/performance ratio.

We managed to get some hands-on time with the Exynos 5 Octa reference board at the MWC expo, and there is a bunch of tasty geeky lingo for you in the video below, explaining which core kicks up when to achieve that performance in that power and thermal envelope, as well as tidbits on the graphics prowess of the platform. Enjoy!

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15 Comments

1. VJo003

Posts: 365; Member since: Mar 11, 2012

Bring it to our pockets n not just to ur booths.

13. PhenomFaz

Posts: 1236; Member since: Sep 26, 2012

I second that! it was really disappointing to learn the Galaxy S4 will not come with this bad boy!

2. darkskoliro

Posts: 1092; Member since: May 07, 2012

Does instantly switching between CPUs waste battery? Seems like turning a whole CPU on then off is inefficient...

3. Berzerk000

Posts: 4275; Member since: Jun 26, 2011

The cores not in use don't completely turn off, they just run idle, not really doing any work so they use almost no power; but they're ready to ramp up when needed. Otherwise, yes, turning them completely on or off would be very inefficient.

10. PackMan

Posts: 277; Member since: Mar 09, 2012

The one part of big.LITLLE i.e either four A15 cores or four A7 cores are turned off at one moment, and they are switched if needed. All eight cores can be turned on through drivers but that would be pointless.

4. _Bone_

Posts: 2155; Member since: Oct 29, 2012

Computing has long been working like this, if you monitored your computer CPU you'd also see it switching between clocks, modes, cores. It's all one CPU divided to 4 A7 and 4 A15 cores, so it's always on, but only draining power of the actual cores in use, hence the power efficiency.

5. Berzerk000

Posts: 4275; Member since: Jun 26, 2011

I'm still curious about what GPU they chose. A lot of sites report the PowerVR SGX544MP3, but it was never really confirmed, at least to my knowledge. Is it the SGX544MP3? Mali-T678? SGX554MPx?

6. _Bone_

Posts: 2155; Member since: Oct 29, 2012

You mean for future Octa-core devices? No rumors on that one so far other than the SIV not being one. They are only demonstrating a pre-recorded video here so the Exynos5O it's still probably in pre-alpha stage.

9. Berzerk000

Posts: 4275; Member since: Jun 26, 2011

Anandtech said the Exynos 5 Octa would use PowerVR graphics, SGX544MP3 specifically, but it was never confirmed.

11. TylerGrunter

Posts: 1544; Member since: Feb 16, 2012

12. Berzerk000

Posts: 4275; Member since: Jun 26, 2011

Ah, thanks, I never saw the confirmation post. Kind of a bummer, I wanted to see what the Mali-T678 could do and how it stacks up against the SGX554MP4. The SGX544MP3 is very capable I'm sure, but I wanted to see a second gen Mali-600 in action.

7. tusshharish

Posts: 342; Member since: Oct 23, 2012

which tablet in which they show this??@??

8. Berzerk000

Posts: 4275; Member since: Jun 26, 2011

It's just reference hardware to demo it in.

14. ama3654

Posts: 295; Member since: Nov 27, 2012

Cant hide my excitement seeing Octa-core working at least, hopefully it'll come in GSIV, Please Samsung surprise everyone!

15. henrickrw

Posts: 408; Member since: Sep 16, 2011

Fingers crossed!!!

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