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[Info] Exynos Octa and why you need to stop the drama about the 8 cores [Upd 25/05]

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By AndreiLux, Senior Member on 15th March 2013, 04:42 PM
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9th June 2013, 06:58 PM |#231  
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Helped me a lot! Exynos woot!
12th June 2013, 02:03 PM |#232  
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So in the end, octa is kinda fail. Its still like a beta for me, working great but not working as it should be. And if the note 3 will get the snapdragon 800, the exynos 5 octa will leave in the shadows. Unless they release the source code, things will be different ^ ^
13th June 2013, 07:53 PM |#233  
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Quote:
Originally Posted by HAAAAAATIUUUU

So in the end, octa is kinda fail. Its still like a beta for me, working great but not working as it should be. And if the note 3 will get the snapdragon 800, the exynos 5 octa will leave in the shadows. Unless they release the source code, things will be different ^ ^

Your underestimating A15 cores. So what if it can't be as efficient. Its extremely powerful.

Benchmark pics from stock setup
http://db.tt/ojvxm7ew
Benchmark from overclock
http://db.tt/dajfCB7q
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14th June 2013, 02:38 PM |#234  
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Quote:
Originally Posted by mw86

Your underestimating A15 cores. So what if it can't be as efficient. Its extremely powerful.

Benchmark pics from stock setup
http://db.tt/ojvxm7ew
Benchmark from overclock
http://db.tt/dajfCB7q

Iknow the A15 in the exynos 5 octa are the most powerful as of now, what im just saying is that itsdoing a good job right nowbut not in the way they really should be working with the A7s
14th June 2013, 02:48 PM |#235  
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Quote:
Originally Posted by HAAAAAATIUUUU

Iknow the A15 in the exynos 5 octa are the most powerful as of now, what im just saying is that itsdoing a good job right nowbut not in the way they really should be working with the A7s

They never said how the A15s will work with the A7s. Actually, from what they said at CES, it works as intended. Cluster migration is what they talked about.
14th June 2013, 04:30 PM |#236  
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Originally Posted by noideaforusername

They never said how the A15s will work with the A7s. Actually, from what they said at CES, it works as intended. Cluster migration is what they talked about.

This is true as the exmple we saw on tablet with exynos using hmp etc was not the GS4 and was a sample of how bug little could work. The product delivered is what was planned for the GS4. The big little architecture was too new to properly integrate the hmp although all exynos supposedly support all three forms of processing these ones were cast on the silicon with only cluster migration mind, and is why Andrei pointed out it would never use anything but cluster migration due to the way the chip was put together lacking the proper interconnect between the two cpus.
14th June 2013, 05:58 PM |#237  
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Quote:
Originally Posted by mw86

Your underestimating A15 cores. So what if it can't be as efficient. Its extremely powerful.

Benchmark pics from stock setup
http://db.tt/ojvxm7ew
Benchmark from overclock
http://db.tt/dajfCB7q

As far as benchmarks tell, it's barely 10% faster than S600´s Krait core, sometimes not even that. 10% speed improvement does not justify so much more power consumption.

The new BMW M5 is about 10% faster than the old M5. But it is actually more fuel efficient than the old one. So that makes it a good deal. But 10% faster with lower (much lower) efficiency? Nah.
14th June 2013, 06:31 PM |#238  
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I have good battery life, and good performance. So what is the problem really?
It could have been a little or much better (we can't tell how much), but theoretical numbers are just that, we can't expect to get 50% (or whatever it is, I'm just making up that number) better battery life.

Fact is, A15 are incredibly powerful cores and the A7 perform very decently and efficiently (you can check these benchmarks for A7: http://forum.xda-developers.com/show...&postcount=539 ), and the SGS4 runs most of the time on the A7 anyway, so again, what's the big deal?
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14th June 2013, 07:25 PM |#239  
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Quote:
Originally Posted by richardbroder

As far as benchmarks tell, it's barely 10% faster than S600´s Krait core, sometimes not even that. 10% speed improvement does not justify so much more power consumption.

The new BMW M5 is about 10% faster than the old M5. But it is actually more fuel efficient than the old one. So that makes it a good deal. But 10% faster with lower (much lower) efficiency? Nah.

BTW from whay I have read so far, exynos has better battery life than snapdragon variant in day to day life..

Sent from my GT-I9500 using xda app-developers app
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14th June 2013, 08:06 PM |#240  
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Originally Posted by danveer

BTW from whay I have read so far, exynos has better battery life than snapdragon variant in day to day life..

Sent from my GT-I9500 using xda app-developers app

Tests comparing the two devices side by side indicate that the I9505 has better battery life:
http://www.gsmarena.com/samsung_gala...view-930p3.php

About "day to day life", with LTE disabled I have managed to keep my phone on for 2 days and 14 hours in a single charge, with 3hours of screen time. That included a 30minute drive with my g/f in which I used the phone to stream Internet music. Brightness set to auto, Wi-Fi and GPS on all the time. Power saving mode DISABLED.

If I hadn't streamed Internet music (very battery intensive) and had used power saving mode, I recon I could have reached 3+ days of battery time. Despite A7´s incredible power efficiency, I have yet to see users posting 3+ days of battery life with over 3hours of screen time in a single charge on their I9500´s.

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14th June 2013, 08:28 PM |#241  
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Quote:
Originally Posted by richardbroder

Tests comparing the two devices side by side indicate that the I9505 has better battery life:
http://www.gsmarena.com/samsung_gala...view-930p3.php

About "day to day life", with LTE disabled I have managed to keep my phone on for 2 days and 14 hours in a single charge, with 3hours of screen time. That included a 30minute drive with my g/f in which I used the phone to stream Internet music. Brightness set to auto, Wi-Fi and GPS on all the time. Power saving mode DISABLED.

If I hadn't streamed Internet music (very battery intensive) and had used power saving mode, I recon I could have reached 3+ days of battery time. Despite A7´s incredible power efficiency, I have yet to see users posting 3+ days of battery life with over 3hours of screen time in a single charge on their I9500´s.

Screenshots attached.

With 2.5 days on single charge and 3 hrs of screen time surely sounds great. .
I have never gotten higher than 17 to 18 hrs myself but even in those 18 hrs, I get a screen time of 5-6 hrs..
Here is how i use my phone in those 18 hrs.
40 to 50 mins real racing 3
30 to 50 mins fast and furious 6
About 1hr of csr racing
15 to 20 mins of temple run
25 mins of subway surfers
25 to 30 mins xda
30 mins opera
A few minutes of whats app and camera.

Air guesture, airview, sync and wifi on and never used power saving mode. .
If I stop these games which I play a lot even I might get that much of stand by but the use differs from user to user.

Besides the test from gsmarena cant be termed accurate..
First reason being they used older fimware for 9500 against updated version of 9505.
Besides there test just diminished the whole purpose of big little in web browsing test. In normal day to day use, loading of a webpage uses a15 and afterwards a7 for the time the person is reading the same page which can take couple of minutes.
In gsmarena test the webpage was refreshed every 10 sec never allowing a15 to shut down.
Also overall difference even with so much disadvantages, the diff is of just 4 hrs.



Sent from my GT-I9500 using xda app-developers app
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