Qualcomm Snapdragon 821 vs MediaTek Helio X20

VS

Qualcomm Snapdragon 821

MediaTek Helio X20

We compared two versions of phone SoCs: 4 cores 2342MHz Qualcomm Snapdragon 821 vs. 10 cores 2100MHz MediaTek Helio X20 . You will find out which processor performs better in benchmark tests, key specifications, power consumption, and more.

Main Differences

Qualcomm Snapdragon 821 Advantages

Better graphics card performance FLOPS (0.3343 TFLOPS vs 0.0998 TFLOPS )

Larger memory bandwidth (29.8GB/s vs 12.8GB/s)

Higher Frequency (2342MHz vs 2100MHz)

More modern manufacturing process (14nm vs 20nm)

Released 1 years and 3 months late

MediaTek Helio X20 Advantages

Lower TDP (5W vs 11W)

Score

Benchmark

FP32 (float)

Qualcomm Snapdragon 821 +237%

334

MediaTek Helio X20

99

Qualcomm Snapdragon 821

VS

MediaTek Helio X20

CPU

2x 2.342 GHz – Kryo
2x 1.6 GHz – Kryo

Architecture

2x 2.1 GHz – Cortex-A72
4x 1.85 GHz – Cortex-A53
4x 1.4 GHz – Cortex-A53

2342 MHz

Frequency

2100 MHz

4

Cores

10

ARMv8-A

Instruction set

ARMv8-A

1 MB

L2 cache

-

14 nm

Process

20 nm

2

Transistor count

3

11 W

TDP

5 W

Samsung

Manufacturing

TSMC

Graphics

Adreno 530

GPU name

Mali-T880 MP4

653 MHz

GPU frequency

780 MHz

1

Execution units

4

256

Shading units

16

8

Max size

4

0.3343 TFLOPS

FLOPS

0.0998 TFLOPS

1.0

Vulkan version

1.0

2.0

OpenCL version

1.2

11

DirectX version

11.2

Memory

LPDDR4

Memory type

LPDDR3

1866 MHz

Memory frequency

933 MHz

4x 16 Bit

Bus

2x 16 Bit

29.8 Gbit/s

Max bandwidth

12.8 Gbit/s

Multimedia (ISP)

Hexagon 680

Neural processor (NPU)

No

eMMC 5.1, UFS 2.0

Storage type

eMMC 5.1

3840 x 2160

Max display resolution

2560 x 1600

1x 28MP, 2x 13MP

Max camera resolution

1x 25MP

4K at 30FPS

Video capture

4K at 30FPS

Video playback

4K at 30FPS

H.264, H.265, VP8, VP9

Video codecs

H.264, H.265, VP9

AIFF, CAF, MP3, MP4, WAV

Audio codecs

AIFF, CAF, MP3, MP4, WAV

X12

Modem

-

Connectivity

LTE Cat. 12

4G support

LTE Cat. 6

No

5G support

No

Up to 600 Mbps

Download speed

Up to 300 Mbps

Up to 150 Mbps

Upload speed

Up to 50 Mbps

5

Wi-Fi

5

4.1

Bluetooth

4.1

GPS, GLONASS, Beidou, Galileo

Navigation

GPS, GLONASS, Beidou, Galileo

Info

Aug 2016

Announced

May 2015

Flagship

Class

Mid range

MSM8996 Pro-AC

Model number

MT6797

Qualcomm Snapdragon 821

Official page

MediaTek Helio X20

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