Samsung Exynos 7 Octa 7420 vs MediaTek Helio X23 (MT6797D)

Comparisons   11-03-2021
   So, which processor or chip is better? Comprehensive compare data of benchmarks Samsung Exynos 7 Octa 7420 vs MediaTek Helio X23 (MT6797D), speed testing of GPUs Mali-T880 MP4 and Mali-T760 MP8.
   This performance comparison involves two processors: Exynos 7 Octa 7420 is octa-core (ARM Cortex-A57) and Helio X23 (MT6797D) is deca-core (ARM Cortex-A72). Both processors went through battery life test and power consumption test. A step-by-step analysis of all the technical characteristics, to make it easier to understand, is made by the table.
   From the video comparison, you can get the results of joint benchmarking in software tests like Quadrant, PassMark, Mozilla Kraken, WebXPRT 3, GeekBench 6, 5, GFXBench, Octane V2, PCMark, Vellamo, Neocore, 3DMark, AnTuTu, and how good the processors are in games Garena Free Fire - The Cobra, Mortal Kombat, Call of Duty: Mobile, Fortnite, PUBG, Sniper 3D, Minecraft Bedrock, Real Racing 3 etc.
   After reading the results of parallel benchmarks and videos, you can already make an briefed decision about which CPU is better to buy Exynos 7 Octa 7420 or Helio X23 (MT6797D) and which chip is better for gaming: Madout2, CSR Racing 2, Need for Speed No Limits, Asphalt 9.

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

Exynos 7 Octa 7420

Helio X23 (MT6797D)

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

Exynos 7 Octa 7420

52%

Helio X23 (MT6797D)

42%

Gaming performance
Which CPU is better for gaming

Exynos 7 Octa 7420

Helio X23 (MT6797D)

Antutu v10, 9

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

	Exynos 7 Octa 7420	Helio X23 (MT6797D)
Total score	79294	92331
CPU	22205	25856
GPU	30121	35085
MEM	12689	14776
UX	14262	16609

GeekBench 6, 5.2

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

	Exynos 7 Octa 7420	Helio X23 (MT6797D)
Single-Core	205	238
Multi-Core	923	1075

Comparison of specifications

CPU and Memory

	Exynos 7 Octa 7420	Helio X23 (MT6797D)
Frequency	2100 MHz	2300 MHz
Cores	8	10
Bit	64	64
Lithography	14 nm	20 nm
Transistors count
Core configuration	4x2.1 GHz ARM Cortex-A57 4x1.5 GHz ARM Cortex-A53	2x2.3 GHz ARM Cortex-A72 4x1.85 GHz ARM Cortex-A53 4x1.4 GHz ARM Cortex-A53
Power consumption (TDP)	7 W	5 W
Memory type	LPDDR4	LPDDR3 (Dual Channel)
Max. Memory	4 Gb	4 Gb
Memory Frequency	1866	800
Memory bandwidth	24.8	14
Neural Processor (NPU)	No	No
L1 cache		32 KB
L2 cache	512 KB	1 MB
L3 cache		1 MB
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. Here Helio X23 (MT6797D) is 8% better than Exynos 7 Octa 7420 in terms of CPU frequency. Another difference is that Exynos 7 Octa 7420 has 2 more core than Helio X23 (MT6797D). Also keep in mind that high CPU frequency affects battery life through power consumption.

GPU and Media

GPU	Mali-T760 MP8	Mali-T880 MP4
GPU Frequency	772 MHz	780 MHz
GFloPS	210	106
# of Cores	8	4
# of Shader Units
Display	3840 x 2400 pixels	2560 x 1600 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)	14.6	19.4
Garena Free Fire - The Cobra	27.3	33.3
Call of Duty: Mobile	15.1	21.6
Grand Theft Auto V (GTA 5 Mobile)	11.9	16.8
Minecraft: Pocket Edition	14.3	20.9
Real Racing 3	47.8	41.6
Sniper 3D	35.5	63.3
Need for Speed No Limits	32.8	53.3
Mortal Kombat X	35.5	53.3
CSR Racing 2	30	46.6

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

Networks and Navigation

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

Result:
The number of parameters for which Samsung Exynos 7 Octa 7420 is better: 11
The number of parameters for which MediaTek Helio X23 (MT6797D) is better: 25
Please note that you do not need to blindly trust the software comparison of the table. It is better to just watch the full benchmark video of parallel testing and hear what people think who really appreciated the capabilities of both chipsets Exynos 7 Octa 7420 and Helio X23 (MT6797D), and also read the test results on the links under the article.

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.

Helio X23 (MT6797D) SoC - all data

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

• Helio X23 (MT6797D) specs and review.