MediaTek Dimensity 8400 vs MediaTek Helio X20

VS

MediaTek Dimensity 8400

MediaTek Helio X20

We compared two versions of phone SoCs: 8 cores 3250MHz MediaTek Dimensity 8400 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

MediaTek Dimensity 8400 Advantages

Larger memory bandwidth (136GB/s vs 12.8GB/s)

Higher Frequency (3250MHz vs 2100MHz)

More modern manufacturing process (4nm vs 20nm)

Released 9 years and 7 months late

Score

MediaTek Dimensity 8400

VS

MediaTek Helio X20

CPU

1x 3.25 GHz – Cortex-A725
3x 3.0 GHz – Cortex-A725
4x 2.1 GHz – Cortex-A725

Architecture

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

3250 MHz

Frequency

2100 MHz

8

Cores

10

ARMv9-A

Instruction set

ARMv8-A

3.5 MB

L2 cache

-

6 MB

L3 cache

-

4 nm

Process

20 nm

-

Transistor count

3

-

TDP

5 W

TSMC

Manufacturing

TSMC

Graphics

Mali-G720 MC7

GPU name

Mali-T880 MP4

1400 MHz

GPU frequency

780 MHz

6

Execution units

4

-

Shading units

16

24

Max size

4

-

FLOPS

0.0998 TFLOPS

1.3

Vulkan version

1.0

2.0

OpenCL version

1.2

-

DirectX version

11.2

Memory

LPDDR5X

Memory type

LPDDR3

8533 MHz

Memory frequency

933 MHz

4x 16 Bit

Bus

2x 16 Bit

136 Gbit/s

Max bandwidth

12.8 Gbit/s

AI

MediaTek NPU 880

NPU

-

Multimedia (ISP)

MediaTek NPU 880

Neural processor (NPU)

No

UFS 4.0

Storage type

eMMC 5.1

2960 x 1440

Max display resolution

2560 x 1600

1x 320MP

Max camera resolution

1x 25MP

4K at 60FPS

Video capture

4K at 30FPS

4K at 60FPS

Video playback

4K at 30FPS

H.264, H.265, AV1, VP9

Video codecs

H.264, H.265, VP9

AAC LC, MP3, HE-AACv1, HE-AACv2, FLAC

Audio codecs

AIFF, CAF, MP3, MP4, WAV

Connectivity

-

4G support

LTE Cat. 6

Yes

5G support

No

Up to 7900 Mbps

Download speed

Up to 300 Mbps

Up to 4200 Mbps

Upload speed

Up to 50 Mbps

6

Wi-Fi

5

5.4

Bluetooth

4.1

GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC

Navigation

GPS, GLONASS, Beidou, Galileo

Info

Dec 2024

Announced

May 2015

Flagship

Class

Mid range

-

Model number

MT6797

MediaTek Dimensity 8400

Official page

MediaTek Helio X20

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