Helio X20 vs Snapdragon 820 comparison shows why the deca-core chip guns for the midrange

Helio X20 vs Snapdragon 820 comparison shows why the deca-core chip guns for the midrange
MediaTek's Helio X20 chipset, the industry's first deca-core endeavor, is fresh out of the oven, and with it comes the inevitable comparison with the elephant in the mobile chipsets factory - Qualcomm's Snapdragon 820. The Helio X20 was already compared once with the current king of the Qualcomm elite - Snapdragon 810 - but it's the 820 that everyone is now looking forward to.

MediaTek achieved this deca-core status with the so-called tri-cluster architecture - they bundled together two powerful Cortex-A72 units, clocked at 2.5 GHz, then four lowly Cortex-A53 pieces, running at 2 GHz maximums, then a quad pack of Cortex-A53s again, which had been clocked the lowest, at mere 1.4 GHz, for the unassuming tasks. Don't be fooled, though, the ten-core chipset is actually aimed at the upper midrange phones of the future, says MediaTek, as is suggested by the inclusion of only a pair of powerful Cortex-A72s, too.

Looking at the direct comparison with Snapdragon 820 in the table below, it becomes clear why. The 820 sports four custom Kryo cores that are at least as powerful as ARM's standard Cortex-A72 architecture, and also features DDR4 RAM tech support, while the Helio X20 maxes out at DDR3. Snapdragon 820 also has a custom GPU that supports screens with higher resolution than the X20, as well as 4K video encoding at double the framerate of MediaTek's deca-core champ. Last but not least, Helio X20 is built with the 20nm process, against 14nm for Snapdragon 820, and Qualcomm has bundled its upcoming juggernaut with LTE Cat. 10 modem, while the X20 sports a Cat. 6 radio only.

source: Techgadgtsz



28. kaikuheadhunterz

Posts: 1157; Member since: Jul 18, 2013

I have a strong feeling that only one cluster will be activated at a time, hence the midrange classification

25. alaw.14

Posts: 431; Member since: Sep 10, 2013

Don't forget that the snapdragon 820 supports Directx 12. I would like to see performance of this monster on dx12 vs a9x on metal.

22. dlsnhuff

Posts: 111; Member since: Aug 20, 2014

Yes it's a 14 nm. But, will it has hot issue ?

27. ibend

Posts: 6747; Member since: Sep 30, 2014

Ask samsung :P

16. jove39

Posts: 2153; Member since: Oct 18, 2011

S820 won't have dual cluster design...Qualcomm's CPU design are capable of async clock so no need to two clusters. Each core can be clocked separately based on load. While in ARM's design all active cores in cluster run at same clock.

31. alex3run

Posts: 715; Member since: May 18, 2014

async core mode is a stupid implementation that causes microlags.

11. janno

Posts: 144; Member since: Aug 19, 2014

What I care most about from Qualcomm is Sense ID. I hope we'll see that in upcoming phones more often than not.

7. livyatan

Posts: 867; Member since: Jun 19, 2013

I finally sense a worthy successor to the legendary Snapdragon 800!

6. Guaire

Posts: 900; Member since: Oct 15, 2014

Dual cluster quad core Kryo doesn't make sense. If it can be clocked async like Kraits, it shouln't be implemented in clusters and even then clusters' clock speed differences is marginal.

8. SmartNingen

Posts: 48; Member since: Apr 02, 2015

Unless Kyro is a modified Cortex design instead of full custom core.

10. vincelongman

Posts: 5836; Member since: Feb 10, 2013

IF Kyro is only a sightly modified Cortex design, it would be based on the A72s The A72s should be able to be clocked asynchronously, like the A57s, A15s and A7s (if I remember correctly) I suspect Qualcomm's 820 will be a quadcore with 4 Kryo cores, no more big.LITTLE from Qualcomm for now

12. may_czos

Posts: 958; Member since: Nov 22, 2014

Krait cores were only modified Cortex cores, yet they were brilliant. I think it's clear Quialcomm is ditching ARM's big.LITTLE architecture, they're switching to their own Zeroth platform. It doesn't mean that SD820 is going to have 4 cores, I wouldn't be suprised if it was octa-core.

24. SmartNingen

Posts: 48; Member since: Apr 02, 2015

I agree. big.LITTLE is quite stupid. It is needed only because Cortex A57 are made from mobiles to servers. Qualcomm on the other hand build Kyro only for mobiles so it's much more efficient in that scenario.

17. jove39

Posts: 2153; Member since: Oct 18, 2011

S820 will have 8 ts2 kryo cores. Regardless of their similarity with A72 kryo core will support async clock. That's how Qualcomm rolls.

3. ahomad

Posts: 175; Member since: May 15, 2012

are you sure SD820 is quad not octacore?

26. ibend

Posts: 6747; Member since: Sep 30, 2014

quad-core A72 is great enough to kill Octa-core exynos (big little A53+A57)

2. Predator1701

Posts: 130; Member since: Oct 28, 2014

Snapdragon 820 is going to ne a Beast, Qualcomm did mess things up in early 2015 but don't overestimate the Lion who is getting picked on.

4. Jobayer

Posts: 167; Member since: Feb 22, 2013

RIP English

5. ahomad

Posts: 175; Member since: May 15, 2012

didn't you understand what he said? if you did, then this is not an english exam (move on), if you didn't then YOUR english isn't good

13. Pulkit1990

Posts: 46; Member since: May 08, 2014

you can easily understand what he said.

19. tury694

Posts: 167; Member since: Aug 25, 2014

Yeah he made mistakes but obviously English is not his first language so leave him alone. If you did not understand hi then you are not too bright.

14. medicci37

Posts: 1361; Member since: Nov 19, 2011

Awww poor Qualcomm. Sucks that people don't just except their half assed products anymore

18. TechNeck

Posts: 658; Member since: Aug 29, 2014

It's a dragon actually..,.

1. TyrionLannister unregistered

it's competing with the 620. That was clear from the start. It can't even compete with the 7420, let alone 2016 chips.

9. medtxa

Posts: 1655; Member since: Jun 02, 2014

well no one said it would compete in high end territory.

20. tury694

Posts: 167; Member since: Aug 25, 2014

The GPU will kill the one in the 7420, not too sure about the cpu performance. I am sure that whatever is packed into the Galaxy Note 5 will outperform everything. I am tired of Exynos and their inability to release sources to developers. The M9 sucks so bad that I had to pick the S6 but this lack of dev support is scary

21. TyrionLannister unregistered

The GPU will kill the one in the 7420 LOL. It won't even come close. Even a T880 MP4 won't beat the T760 MP8, that too at higher frequency and 14 nm and twice the memory bandwidth.

29. alex3run

Posts: 715; Member since: May 18, 2014

It won't outperform in real games even E5430's one. Read about fillrate performance.

23. waddup121 unregistered

True sh*t.

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