MediaTek Dimensity 800U vs AMD Ryzen 7 3800X

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CPU comparison with benchmarks


MediaTek Dimensity 800U CPU1 vs CPU2 AMD Ryzen 7 3800X
MediaTek Dimensity 800U AMD Ryzen 7 3800X

CPU comparison

In this CPU comparison, we compare the MediaTek Dimensity 800U and the AMD Ryzen 7 3800X and use benchmarks to check which processor is faster.

We compare the MediaTek Dimensity 800U 8 core processor released in Q3/2020 with the AMD Ryzen 7 3800X which has 8 CPU cores and was introduced in Q3/2019.
Mediatek Dimensity (36) Family AMD Ryzen 7 (68)
MediaTek Dimensity 700/720/800 (4) CPU group AMD Ryzen 3000 (15)
1 Generation 3
Cortex-A76 / Cortex-A55 Architecture Matisse (Zen 2)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor AMD Ryzen 7 5800X

CPU Cores and Base Frequency

The MediaTek Dimensity 800U is a 8 core processor with a clock frequency of 2.40 GHz. The processor can compute 8 threads at the same time. The AMD Ryzen 7 3800X clocks with 3.90 GHz (4.50 GHz), has 8 CPU cores and can calculate 16 threads in parallel.

MediaTek Dimensity 800U Characteristic AMD Ryzen 7 3800X
8 Cores 8
8 Threads 16
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading Yes
No Overclocking ? Yes
2.40 GHz
2x Cortex-A76
A-Core 3.90 GHz (4.50 GHz)
2.00 GHz
6x Cortex-A55
B-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 800U Characteristic AMD Ryzen 7 3800X
-- 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-G57 MP3 GPU no iGPU
0.95 GHz GPU frequency --
-- GPU (Turbo) --
Vallhall 1 GPU Generation --
7 nm Technology
2 Max. displays
3 Compute units --
48 Shader --
No Hardware Raytracing No
No Frame Generation No
4 GB Max. GPU Memory --
12 DirectX Version --

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 MP3 GPU no iGPU
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

Up to 12 GB of memory in a maximum of 2 memory channels is supported by the MediaTek Dimensity 800U, while the AMD Ryzen 7 3800X supports a maximum of 128 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled.

MediaTek Dimensity 800U Characteristic AMD Ryzen 7 3800X
LPDDR4X-4266 Memory DDR4-3200
12 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
17.1 GB/s Max. Bandwidth 51.2 GB/s
No ECC Yes
-- L2 Cache --
-- L3 Cache 32.00 MB
-- PCIe version 4.0
-- PCIe lanes 20
-- PCIe Bandwidth 39.4 GB/s

Thermal Management

The MediaTek Dimensity 800U has a TDP of --. The TDP of the AMD Ryzen 7 3800X is 105 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

MediaTek Dimensity 800U Characteristic AMD Ryzen 7 3800X
-- TDP (PL1 / PBP) 105 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 95 °C

Technical details

The MediaTek Dimensity 800U has 0.00 MB cache and is manufactured in 7 nm. The cache of AMD Ryzen 7 3800X is at 32.00 MB. The processor is manufactured in 7 nm.

MediaTek Dimensity 800U Characteristic AMD Ryzen 7 3800X
7 nm Technology 7 nm
Chiplet Chip design Chiplet
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
-- Socket AM4 (PGA 1331)
None Virtualization AMD-V, SVM
No AES-NI Yes
Android Operating systems Windows 10, Windows 11, Linux
Q3/2020 Release date Q3/2019
-- Release price 385 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
MediaTek Dimensity 800U (45%)
AMD Ryzen 7 3800X (100%)
⌀ Multi core performance in 3 CPU benchmarks
MediaTek Dimensity 800U (20%)
AMD Ryzen 7 3800X (100%)

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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
593 (47%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
1271 (100%)

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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
1783 (20%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
9065 (100%)

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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
753 (43%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
1742 (100%)

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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
1882 (24%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
7965 (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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
3621 (16%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
23322 (100%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
76 (100%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
712 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
1325 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
12874 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
509 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
4960 (100%)

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 800U MediaTek Dimensity 800U
ARM Mali-G57 MP3 @ 0.95 GHz
365 (100%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
@ 0.00 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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
368465 (100%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 3.90 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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
334689 (100%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 3.90 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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
182 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
167.6 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
517 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 3.90 GHz
5544 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
209 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
2165 (100%)

Devices using this processor

MediaTek Dimensity 800U AMD Ryzen 7 3800X
Unknown dercomputerladen PC mit Ryzen 7 3800X
Memory PC mit Ryzen 7 3800X

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