MediaTek Helio X20 (MT6797) vs Samsung Exynos 7 Octa 7420

Comparisons   11-03-2021
   Well, which processor or chip is better? Detailed comparison data of benchmarks MediaTek Helio X20 (MT6797) vs Samsung Exynos 7 Octa 7420, speed testing of GPUs Mali-T880 MP4 and Mali-T760 MP8.
   This performance comparison includes two processors: Helio X20 (MT6797) is deca-core (ARM Cortex-A72) and Exynos 7 Octa 7420 is octa-core (ARM Cortex-A57). Both processors went throughpower consumption test and battery life test. A step-by-step analysis of all the technical characteristics of the CPUs, to make it easier to read, is presented in the form of the table.
   From the comparison video, you can get the results of parallel benchmarking in synthetic type tests like Neocore, 3DMark, Quadrant, Vellamo, PassMark, GeekBench 6, 5, AnTuTu 8, Octane V2, GFXBench, PCMark, Mozilla Kraken, WebXPRT 3, and how good the SoCs are in games Mortal Kombat, Minecraft Bedrock, Real Racing 3, PUBG, Fortnite, Call of Duty: Mobile, Garena Free Fire - The Cobra, Sniper 3D etc.
   After looking at the data of parallel benchmarks and videos, you can already make an briefed decision about which chipset is better to buy Helio X20 (MT6797) or Exynos 7 Octa 7420 and which chip is better for gaming: CSR Racing 2, Need for Speed No Limits, Asphalt 9, Madout2.

Summary benchmark results

As a percentage of the maximum value based on a sample from the entire base of all processors
CPU Benchmark
Based on Antutu and Geekbench score

Helio X20 (MT6797)

Exynos 7 Octa 7420

Battery life test
Power Consumption efficiency (how quickly the processor reduces the battery charge)

Helio X20 (MT6797)

42%

Exynos 7 Octa 7420

52%

Gaming performance
Which CPU is better for gaming

Helio X20 (MT6797)

Exynos 7 Octa 7420

Antutu v10, 9

Antutu benchmark separately tests the performance of the CPU, GPU, and memory speed

	Helio X20 (MT6797)	Exynos 7 Octa 7420
Total score	83288	79294
CPU	23311	22205
GPU	31649	30121
MEM	13320	12689
UX	14981	14262

GeekBench 6, 5.2

This benchmark shows Multi-threaded and Single-threaded processor performance

	Helio X20 (MT6797)	Exynos 7 Octa 7420
Single-Core	215	205
Multi-Core	970	923

Comparison of specifications

CPU and Memory

	Helio X20 (MT6797)	Exynos 7 Octa 7420
Frequency	2100 MHz	2100 MHz
Cores	10	8
Bit	64	64
Lithography	20 nm	14 nm
Transistors count
Core configuration	2x2.1 GHz ARM Cortex-A72 4x1.85 GHz ARM Cortex-A53 4x1.4 GHz ARM Cortex-A53	4x2.1 GHz ARM Cortex-A57 4x1.5 GHz ARM Cortex-A53
Power consumption (TDP)	5 W	7 W
Memory type	LPDDR3 (Dual Channel)	LPDDR4
Max. Memory	4 Gb	4 Gb
Memory Frequency	800	1866
Memory bandwidth	12.8	24.8
Neural Processor (NPU)	No	No
L1 cache
L2 cache		512 KB
L3 cache
Instruction set architecture (ISA)	ARMv8-A	ARMv8-A

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Another difference is that Helio X20 (MT6797) has -2 more core than Exynos 7 Octa 7420. Also keep in mind that high CPU frequency affects battery life through power consumption.

GPU and Media

GPU	Mali-T880 MP4	Mali-T760 MP8
GPU Frequency	780 MHz	772 MHz
GFloPS	106	210
# of Cores	4	8
# of Shader Units
Display	2560 x 1600 pixels	3840 x 2400 pixels

The frequency of the GPU does not always directly indicate its performance. To fully evaluate all the capabilities of a graphics chip, you should take into account the number of Shader Units and Cores, as well as how many GFlops it has.

Gaming benchmark

Fortnite Mobile
PlayerUnknown's Battlegrounds (PUBG Mobile)	16.4	14.6
Garena Free Fire - The Cobra	29.1	27.3
Call of Duty: Mobile	17.7	15.1
Grand Theft Auto V (GTA 5 Mobile)	13.1	11.9
Minecraft: Pocket Edition	16.7	14.3
Real Racing 3	36.4	47.8
Sniper 3D	46.6	35.5
Need for Speed No Limits	52.4	32.8
Mortal Kombat X	37.8	35.5
CSR Racing 2	40.7	30

The numbers in this table indicate the maximum FPS that was received on the device with the corresponding processor. Depending on the configuration of the gadget and graphics quality settings (Ultra, Medium, Normal), the results may differ quite significantly. We recommend that you better study the results of the Antutu v10, 9 and GeekBench 6, 5.2 becnmarks.

Cameras

Camera resolution	32 MP	20 MP
Image Signal Processor (ISP)
Video Encoding FPS	30	30
Video Encoding resolution	4K, 2K, FullHD	4K (Ultra HD), 2K, FullHD
Codec support	H.264, H.265	H.264, H.265/HEVC, VP9

Networks and Navigation

Modem
Download speed	150 MBit/s.	42 MBit/s.
Upload speed	50 MBit/s.	11 MBit/s.
Navigation	GPS, Galileo, Glonass, Beidou
NFC support	No	No
5G support	Yes	No

Result:
The number of parameters for which MediaTek Helio X20 (MT6797) is better: 23
The number of parameters for which Samsung Exynos 7 Octa 7420 is better: 10
You need to know that you should not blindly trust the automatic comparison of the table. You can watch benchmark video from beginning to end of parallel testing and hear what those who really appreciated the capabilities of both chipsets think, and also read the test results on the links under the article.

Helio X20 (MT6797) SoC - all data

• Devices lists
• Benchmarks
• PUBG mobile
• Fortnite Mobile
• GeekBench 6, 5 mobile
• Antutu v10
• 3DMark

• Helio X20 (MT6797) specs and review.

Exynos 7 Octa 7420 SoC - all data

• Devices lists
• Benchmarks
• PUBG mobile
• Fortnite Mobile
• GeekBench 6, 5 mobile
• Antutu v10
• 3DMark

• Exynos 7 Octa 7420 specs and review.