MediaTek Helio X20 vs MediaTek Dimensity 8400

VS

MediaTek Helio X20

MediaTek Dimensity 8400

We compared two versions of phone SoCs: 10 cores 2100MHz MediaTek Helio X20 vs. 8 cores 3250MHz MediaTek Dimensity 8400 . 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 Helio X20

VS

MediaTek Dimensity 8400

CPU

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

Architecture

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

2100 MHz

Frequency

3250 MHz

10

Cores

8

ARMv8-A

Instruction set

ARMv9-A

-

L2 cache

3.5 MB

-

L3 cache

6 MB

20 nm

Process

4 nm

3

Transistor count

-

5 W

TDP

-

TSMC

Manufacturing

TSMC

Graphics

Mali-T880 MP4

GPU name

Mali-G720 MC7

780 MHz

GPU frequency

1400 MHz

4

Execution units

6

16

Shading units

-

4

Max size

24

0.0998 TFLOPS

FLOPS

-

1.0

Vulkan version

1.3

1.2

OpenCL version

2.0

11.2

DirectX version

-

Memory

LPDDR3

Memory type

LPDDR5X

933 MHz

Memory frequency

8533 MHz

2x 16 Bit

Bus

4x 16 Bit

12.8 Gbit/s

Max bandwidth

136 Gbit/s

AI

-

NPU

MediaTek NPU 880

Multimedia (ISP)

No

Neural processor (NPU)

MediaTek NPU 880

eMMC 5.1

Storage type

UFS 4.0

2560 x 1600

Max display resolution

2960 x 1440

1x 25MP

Max camera resolution

1x 320MP

4K at 30FPS

Video capture

4K at 60FPS

4K at 30FPS

Video playback

4K at 60FPS

H.264, H.265, VP9

Video codecs

H.264, H.265, AV1, VP9

AIFF, CAF, MP3, MP4, WAV

Audio codecs

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

Connectivity

LTE Cat. 6

4G support

-

No

5G support

Yes

Up to 300 Mbps

Download speed

Up to 7900 Mbps

Up to 50 Mbps

Upload speed

Up to 4200 Mbps

5

Wi-Fi

6

4.1

Bluetooth

5.4

GPS, GLONASS, Beidou, Galileo

Navigation

GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC

Info

May 2015

Announced

Dec 2024

Mid range

Class

Flagship

MT6797

Model number

-

MediaTek Helio X20

Official page

MediaTek Dimensity 8400

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