In order to fulfill the basic functions of our service, the user hereby agrees to allow Xiaomi to collect, process and use personal information which shall include but not be limited to written threads, pictures, comments, replies in the Mi Community, and relevant data types listed in Xiaomi's Private Policy. By selecting "Agree", you agree to Xiaomi's Private Policy and Content Policy .


[Discussion] Snapdragon 660 VS Snapdragon 820 and SD 821

2017-05-09 08:38:22
32776 8

Hi Happy Mi Fans

World's Biggest Smartphone Chip Maker Qualcomm released two New Processor Snapdragon 660 and Snapdragon 630. Here Is a Quick Comparison Snapdragon 660 With Snapdragon 820 and Snapdragon 821.

Snapdragon 660

Starting with the Snapdragon 660, this mobile platform is the successor to Qualcomm’s existing 653 model. There are a couple of notable changes between these chipsets, the first of which is the move from a 28nm process down to a much more efficient 14nm node. Secondly, Qualcomm has introduced its Kryo 260 cores in its latest processor, switching things up for the octa-core ARM Cortex-A72 and A53 big.LITTLE combination seen in its predecessor.

Qualcomm hasn’t spilled the beans on exactly what makes up its Kryo 260 core, but it’s my suspicion that we’re looking at a similar Built on ARM Cortex Technology license that the company used for the Kryo 280, with some inhouse tweaks and a custom silicon layout. What we do know is that Kryo 260 comes in a familiar 4+4 octa-core arrangement, featuring four larger cores clocked at 2.2GHz with 1MB of L2 cache, while the little cores have their own 1MB L2 cache and are clocked at 1.8GHz.

Snapdragon 820
The new 14nm Snapdragon 820 has a completely different architecture to its predecessor, the 810. It’s comprised of the X12 LTE modem, Kryo CPU, Adreno 530 GPU, Hexagon DSP, and Spectra ISP.

The 64-bit Kryta CPU is one of the bigger changes and will reportedly offer twice the performance of the 810.

The CPU has a maximum 2.2GHz clock speed and is quad-core, not octa-core. Qualcomm claims the reduced number of cores won’t adversely affect performance, as Android, and the majority of its apps, still aren’t optimised, nor demanding enough to need octa-core muscle.
he Adreno 530 GPU is, on paper, similarly impressive and according to Qualcomm will offer “40 per cent better performance than the 810." As an added element of futureproofing, it’ll also include support for the recently unveiled Vulkan API as well as the more common OpenGL 3.1 used on most current Android games.

For those not in the know, Vulkan was previously known as the “Next Generation OpenGL Initiative” and is designed to make it easier for developers to make great-looking games. It already has massive support from big names in the games industry, including Valve.

Finally, the 820's X12 LTE modem will further boost performance by adding support for Cat.12 LTE speeds.

Snapdragon 821

The Snapdragon 821 is Qualcomm’s first HMP system using its own Kryo cores, however it has used HMP before in processors like the Snapdragon 810 which used four Cortex-A57 cores plus four Cortex-A53 cores. Qualcomm still uses ARM’s big.LITTLE system for other processors in its range including the Snapdragon 652 which uses four Cortex-A72 cores plus four Cortex-A53 cores.


Snapdragon 660
Snapdragon 821
Snapdragon 820
Process Technology
CPU cores
8 Kryo cores
4 Kryo cores
4 Kryo cores
High peformance core cluster
4x cores, up to 2.4GHz
2x cores, up to 2.4GHz
2x cores, up to 2.2GHz
Energy-saving cores cluster
4x Kryo 260 @ 1.8GHz
2x cores, up to 2.0GHz
2x cores, up to 1.6GHz
Adreno 512
Adreno 530
Adreno 530
GPU clock rate
Quick Charge version
X12 LTE - Cat. 12/13
3x 20MHz download (600Mbps)

2x 20MHz upload (150Mbps)
- LTE Advanced 3x20MHz Carrier , 2x20 MHZ in the uplink

- Cat 12/13 speeds up to 600 Mbps down/150 Mbps up

- Global Mode

RF360 support
-LTE Category 13 (uplink)
LTE Category 12 (downlink)
Downlink Features

3x20 MHz carrier aggregation
Up to 256-QAM
Uplink Features

Peak Download Speed
600 Mbps
Peak Upload Speed
150 Mbps

Thanks For Reading This Thread, Keep Using Mi Community For Interesting Articles.

2017-05-09 08:38:22
Favorites6 RateRate

News Reporter

Venk | from mobile


Good comparison Bro. Nice thread
2017-05-09 08:39:58

Pro Bunny

idhayabhanu | from app


thank you.
2017-05-09 09:41:17
Nice Thread. Thanks For Sharing
2017-05-09 09:50:15

Semi Pro Bunny

n@M$ | from Redmi 3S


Nice article
2017-05-09 10:54:40

Master Bunny

Prabh_hundal | from MI 4W


Great new processor
2017-05-09 10:59:34
carpe diem!

Grandmaster Bunny

Shubham Tripathi | from Redmi Note 3


very nice.....
2017-05-09 14:37:13
Something wonderful is about to happen...[url=]ht

Pro Bunny

idhayabhanu | from app


thank you.
2017-05-09 14:40:37
2017-09-12 07:11:04
please sign in to reply.
Sign In Sign Up

DiLshad Sys

Mi FC President

Beta Tester
100 threads in a Month
2016 Diwali with Mi
300K Members
3 Days Check-In
7 Days Check-In
21 Days Check-In
40 Days Check-In
70 Days Check-In
100 Days Check-In
Lucky Draw No.
Mi Explorers
June-100 replies in a month
July-100 replies in a month
Aug-100 replies in a month
Sep-100 replies in a month
Oct-100 replies in a month
1st Anniversary
My Poster My Life
MIUI 7th Anniversary
2 million registered members
Mi A1 Review Contest
Newbie Member
Android O Tester
Christmas 2017
Mi Community Updater
Color Your Planet
Color Our Planet Game
April Participation
Golden Mi Bunny
MIUI Subscriber
Eid Mubarak
10 Million Downloads
Throwback With Mi 2018
Xiaomi's 9th Birthday

Read moreGet new
Copyright©2016-2019, All Rights Reserved
Content Policy
Quick Reply To Top Return to the list