MediaTek Dimensity 1200 vs Intel Core i5-8400B

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CPU comparison with benchmarks


MediaTek Dimensity 1200 CPU1 vs CPU2 Intel Core i5-8400B
MediaTek Dimensity 1200 Intel Core i5-8400B

CPU comparison

In this CPU comparison, we compare the MediaTek Dimensity 1200 and the Intel Core i5-8400B and use benchmarks to check which processor is faster.

We compare the MediaTek Dimensity 1200 8 core processor released in Q1/2021 with the Intel Core i5-8400B which has 6 CPU cores and was introduced in Q2/2018.
Mediatek Dimensity (36) Family Intel Core i5 (331)
MediaTek Dimensity 1100/1200/1300 (3) CPU group Intel Core i 8000 (20)
2 Generation 8
Cortex-A78 / Cortex-A55 Architecture Coffee Lake S
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The MediaTek Dimensity 1200 is a 8 core processor with a clock frequency of 3.00 GHz. The processor can compute 8 threads at the same time. The Intel Core i5-8400B clocks with 2.80 GHz (3.80 GHz), has 6 CPU cores and can calculate 6 threads in parallel.

MediaTek Dimensity 1200 Characteristic Intel Core i5-8400B
8 Cores 6
8 Threads 6
hybrid (Prime / big.LITTLE) Core architecture normal
No Hyperthreading No
No Overclocking ? No
3.00 GHz
1x Cortex-A78
A-Core 2.80 GHz (3.80 GHz)
2.60 GHz
3x Cortex-A78
B-Core --
2.00 GHz
4x Cortex-A55
C-Core --

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 1200 Characteristic Intel Core i5-8400B
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

ARM Mali-G77 MP9 GPU Intel UHD Graphics 630
0.85 GHz GPU frequency 0.35 GHz
-- GPU (Turbo) 1.15 GHz
Vallhall 1 GPU Generation 9.5
7 nm Technology 14 nm
1 Max. displays 3
9 Compute units 24
144 Shader 192
No Hardware Raytracing No
No Frame Generation No
4 GB Max. GPU Memory 64 GB
12 DirectX Version 12

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-G77 MP9 GPU Intel UHD Graphics 630
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode / Encode Codec VP8 Decode / Encode
Decode Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode / Encode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 16 GB of memory in a maximum of 4 memory channels is supported by the MediaTek Dimensity 1200, while the Intel Core i5-8400B supports a maximum of 64 GB of memory with a maximum memory bandwidth of 42.7 GB/s enabled.

MediaTek Dimensity 1200 Characteristic Intel Core i5-8400B
LPDDR4X-4266 Memory DDR4-2666
16 GB Max. Memory 64 GB
4 (Quad Channel) Memory channels 2 (Dual Channel)
34.1 GB/s Max. Bandwidth 42.7 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache 9.00 MB
-- PCIe version 3.0
-- PCIe lanes 16
-- PCIe Bandwidth 15.8 GB/s

Thermal Management

The MediaTek Dimensity 1200 has a TDP of --. The TDP of the Intel Core i5-8400B is 65 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

MediaTek Dimensity 1200 Characteristic Intel Core i5-8400B
-- TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 100 °C

Technical details

The MediaTek Dimensity 1200 has 0.00 MB cache and is manufactured in 6 nm. The cache of Intel Core i5-8400B is at 9.00 MB. The processor is manufactured in 14 nm.

MediaTek Dimensity 1200 Characteristic Intel Core i5-8400B
6 nm Technology 14 nm
Chiplet Chip design Monolithic
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4.1, SSE4.2, AVX2
-- Socket BGA 1440
None Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Android Operating systems Windows 10, Windows 11, Linux
Q1/2021 Release date Q2/2018
-- Release price 260 $
show more data show more data


Rate these processors

Here you can rate the MediaTek Dimensity 1200 to help other visitors make their purchasing decisions. The average rating is 2.5 stars (2 ratings). Rate now:
Here you can rate the Intel Core i5-8400B to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


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 1200 MediaTek Dimensity 1200
ARM Mali-G77 MP9 @ 0.85 GHz
979 (100%)
Intel Core i5-8400B Intel Core i5-8400B
Intel UHD Graphics 630 @ 1.15 GHz
442 (45%)

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 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
868 (100%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 3.80 GHz
0 (0%)

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 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
3075 (100%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 4.00 GHz
0 (0%)

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 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
1114 (100%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 3.80 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 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
3165 (100%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 4.00 GHz
0 (0%)

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 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
669042 (100%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 2.80 GHz
0 (0%)

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 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
627817 (100%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 2.80 GHz
0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
MediaTek Dimensity 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
0 (0%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 4.00 GHz
76 (100%)

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 1200 MediaTek Dimensity 1200
8C 8T @ 3.00 GHz
5143 (100%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 4.00 GHz
0 (0%)

Devices using this processor

MediaTek Dimensity 1200 Intel Core i5-8400B
OnePlus Nord 2 Unknown

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