MediaTek Dimensity 800U vs Intel Atom Z3785

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CPU comparison with benchmarks


MediaTek Dimensity 800U CPU1 vs CPU2 Intel Atom Z3785
MediaTek Dimensity 800U Intel Atom Z3785

CPU comparison

In this CPU comparison, we compare the MediaTek Dimensity 800U and the Intel Atom Z3785 and use benchmarks to check which processor is faster.

We compare the MediaTek Dimensity 800U 8 core processor released in Q3/2020 with the Intel Atom Z3785 which has 4 CPU cores and was introduced in Q2/2014.
Mediatek Dimensity (36) Family Intel Atom (108)
MediaTek Dimensity 700/720/800 (4) CPU group Intel Atom Z3700 (16)
1 Generation 4
Cortex-A76 / Cortex-A55 Architecture Bay Trail
Mobile Segment Mobile
-- Predecessor --
-- Successor --

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 Intel Atom Z3785 clocks with 1.49 GHz (2.41 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

MediaTek Dimensity 800U Characteristic Intel Atom Z3785
8 Cores 4
8 Threads 4
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading No
No Overclocking ? No
2.40 GHz
2x Cortex-A76
A-Core 1.49 GHz (2.41 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 Intel Atom Z3785
-- 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 Intel HD Graphics (Bay Trail GT1)
0.95 GHz GPU frequency 0.31 GHz
-- GPU (Turbo) 0.83 GHz
Vallhall 1 GPU Generation 7
7 nm Technology 22 nm
2 Max. displays 2
3 Compute units 4
48 Shader 32
No Hardware Raytracing No
No Frame Generation No
4 GB Max. GPU Memory 2 GB
12 DirectX Version 11.2

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 Intel HD Graphics (Bay Trail GT1)
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
Decode Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode / Encode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode

Memory & PCIe

Up to 12 GB of memory in a maximum of 2 memory channels is supported by the MediaTek Dimensity 800U, while the Intel Atom Z3785 supports a maximum of 4 GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled.

MediaTek Dimensity 800U Characteristic Intel Atom Z3785
LPDDR4X-4266 Memory LPDDR3-1333
12 GB Max. Memory 4 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
17.1 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache 2.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The MediaTek Dimensity 800U has a TDP of --. The TDP of the Intel Atom Z3785 is 4 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

MediaTek Dimensity 800U Characteristic Intel Atom Z3785
-- TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 90 °C

Technical details

The MediaTek Dimensity 800U has 0.00 MB cache and is manufactured in 7 nm. The cache of Intel Atom Z3785 is at 2.00 MB. The processor is manufactured in 22 nm.

MediaTek Dimensity 800U Characteristic Intel Atom Z3785
7 nm Technology 22 nm
Chiplet Chip design Monolithic
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4.1, SSE4.2
-- Socket BGA 1380
None Virtualization VT-x, VT-x EPT
No AES-NI Yes
Android Operating systems
Q3/2020 Release date Q2/2014
-- Release price --
show more data show more data


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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%)
Intel Atom Z3785 Intel Atom Z3785
Intel HD Graphics (Bay Trail GT1) @ 0.83 GHz
53 (15%)

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 (100%)
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 2.41 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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
1783 (100%)
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
753 (100%)
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 2.41 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 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
1882 (100%)
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 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%)
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 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%)
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)

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 (100%)
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)

Devices using this processor

MediaTek Dimensity 800U Intel Atom Z3785
Unknown Unknown

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