MediaTek Dimensity 820 vs MediaTek Helio G25

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CPU comparison with benchmarks


MediaTek Dimensity 820 CPU1 vs CPU2 MediaTek Helio G25
MediaTek Dimensity 820 MediaTek Helio G25

CPU comparison

MediaTek Dimensity 820 or MediaTek Helio G25 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The MediaTek Dimensity 820 has 8 cores with 8 threads and clocks with a maximum frequency of 2.60 GHz. Up to 16 GB of memory is supported in 2 memory channels. The MediaTek Dimensity 820 was released in Q2/2020.

The MediaTek Helio G25 has 8 cores with 8 threads and clocks with a maximum frequency of 2.00 GHz. The CPU supports up to 6 GB of memory in 4 memory channels. The MediaTek Helio G25 was released in Q2/2020.
Mediatek Dimensity (36) Family Mediatek Helio (37)
MediaTek Dimensity 820 (1) CPU group MediaTek Helio G20/G30 (4)
1 Generation 1
Cortex-A76 / Cortex-A55 Architecture Cortex-A53 / Cortex-A53
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The MediaTek Dimensity 820 is a 8 core processor with a clock frequency of 2.60 GHz. The MediaTek Helio G25 has 8 CPU cores with a clock frequency of 2.00 GHz.

MediaTek Dimensity 820 Characteristic MediaTek Helio G25
8 Cores 8
8 Threads 8
hybrid (big.LITTLE) Core architecture hybrid (big.LITTLE)
No Hyperthreading No
No Overclocking ? No
2.60 GHz
4x Cortex-A76
A-Core 2.00 GHz
4x Cortex-A53
2.00 GHz
4x Cortex-A55
B-Core 1.50 GHz
4x Cortex-A53

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

MediaTek Dimensity 820 Characteristic MediaTek Helio G25
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

ARM Mali-G57 MP5 GPU PowerVR GE8320
0.90 GHz GPU frequency 0.65 GHz
-- GPU (Turbo) --
Vallhall 1 GPU Generation --
7 nm Technology 20 nm
2 Max. displays 1
5 Compute units 1
80 Shader --
No Hardware Raytracing No
No Frame Generation No
4 GB Max. GPU Memory --
12 DirectX Version 10

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

ARM Mali-G57 MP5 GPU PowerVR GE8320
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
Decode Codec AV1 No
Decode / Encode Codec AVC No
Decode / Encode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The MediaTek Dimensity 820 supports a maximum of 16 GB of memory in 2 memory channels. The MediaTek Helio G25 can connect up to 6 GB of memory in 4 memory channels.

MediaTek Dimensity 820 Characteristic MediaTek Helio G25
LPDDR4X-4266 Memory LPDDR4X-1600, LPDDR3-933
16 GB Max. Memory 6 GB
2 (Dual Channel) Memory channels 4 (Quad Channel)
17.2 GB/s Max. Bandwidth 12.8 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache --
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The MediaTek Dimensity 820 has a TDP of --, that of the MediaTek Helio G25 is --.

MediaTek Dimensity 820 Characteristic MediaTek Helio G25
-- TDP (PL1 / PBP) --
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The MediaTek Dimensity 820 has a 0.00 MB cache, while the MediaTek Helio G25 cache has a total of 0.00 MB.

MediaTek Dimensity 820 Characteristic MediaTek Helio G25
7 nm Technology 12 nm
Chiplet Chip design Chiplet
Armv8-A (64 bit) Instruction set (ISA) Armv8-A (64 bit)
-- ISA extensions --
-- Socket --
None Virtualization None
No AES-NI No
Android Operating systems Android
Q2/2020 Release date Q2/2020
-- Release price --
show more data show more data


Rate these processors

Here you can rate the MediaTek Dimensity 820 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the MediaTek Helio G25 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
MediaTek Dimensity 820 MediaTek Dimensity 820
8C 8T @ 2.60 GHz
646 (100%)
MediaTek Helio G25 MediaTek Helio G25
8C 8T @ 2.00 GHz
139 (22%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
MediaTek Dimensity 820 MediaTek Dimensity 820
8C 8T @ 2.60 GHz
2432 (100%)
MediaTek Helio G25 MediaTek Helio G25
8C 8T @ 2.00 GHz
845 (35%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
MediaTek Dimensity 820 MediaTek Dimensity 820
ARM Mali-G57 MP5 @ 0.90 GHz
576 (100%)
MediaTek Helio G25 MediaTek Helio G25
PowerVR GE8320 @ 0.65 GHz
42 (7%)

AnTuTu 9 Benchmark

The AnTuTu 9 benchmark is very well suited to measuring the performance of a smartphone. AnTuTu 9 is quite heavy on 3D graphics and can now also use the "Metal" graphics interface. In AnTuTu, memory and UX (user experience) are also tested by simulating browser and app usage. AnTuTu version 9 can compare any ARM CPU running on Android or iOS. Devices may not be directly comparable when benchmarked on different operating systems.

In the AnTuTu 9 benchmark, the single-core performance of a processor is only slightly weighted. The rating is made up of the multi-core performance of the processor, the speed of the working memory, and the performance of the internal graphics.
MediaTek Dimensity 820 MediaTek Dimensity 820
8C 8T @ 2.60 GHz
447630 (100%)
MediaTek Helio G25 MediaTek Helio G25
8C 8T @ 2.00 GHz
109554 (24%)

AnTuTu 8 Benchmark

The AnTuTu 8 Benchmark measures the performance of a SoC. AnTuTu benchmarks the CPU, GPU, Memory as well as the UX (User Experience) by simulating browser and app usage. AnTuTu can benchmark any ARM CPU that runs under Android or iOS. Devices may not be directly compareable if the benchmark has been performed under different operating systems.

In the AnTuTu 8 benchmark, the single-core performance of a processor is only slightly weighted. The evaluation consists of the multi-core performance of the processor, the speed of the RAM and the performance of the internal graphics.
MediaTek Dimensity 820 MediaTek Dimensity 820
8C 8T @ 2.60 GHz
407964 (100%)
MediaTek Helio G25 MediaTek Helio G25
8C 8T @ 2.00 GHz
93586 (23%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
MediaTek Dimensity 820 MediaTek Dimensity 820
8C 8T @ 2.60 GHz
4401 (100%)
MediaTek Helio G25 MediaTek Helio G25
8C 8T @ 2.00 GHz
1186 (27%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
MediaTek Dimensity 820 MediaTek Dimensity 820
8C 8T @ 2.60 GHz
820 (100%)
MediaTek Helio G25 MediaTek Helio G25
8C 8T @ 2.00 GHz
0 (0%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
MediaTek Dimensity 820 MediaTek Dimensity 820
8C 8T @ 2.60 GHz
2512 (100%)
MediaTek Helio G25 MediaTek Helio G25
8C 8T @ 2.00 GHz
0 (0%)

Devices using this processor

MediaTek Dimensity 820 MediaTek Helio G25
Unknown Unknown

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