Intel Atom Z3785 vs Intel Core i7-8559U

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CPU comparison with benchmarks


Intel Atom Z3785 CPU1 vs CPU2 Intel Core i7-8559U
Intel Atom Z3785 Intel Core i7-8559U

CPU comparison

Intel Atom Z3785 or Intel Core i7-8559U - 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 Intel Atom Z3785 has 4 cores with 4 threads and clocks with a maximum frequency of 2.41 GHz. Up to 4 GB of memory is supported in 2 memory channels. The Intel Atom Z3785 was released in Q2/2014.

The Intel Core i7-8559U has 4 cores with 8 threads and clocks with a maximum frequency of 4.50 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-8559U was released in Q2/2018.
Intel Atom (101) Family Intel Core i7 (293)
Intel Atom Z3700 (16) CPU group Intel Core i 8000U (8)
4 Generation 8
Bay Trail Architecture Coffee Lake U
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom Z3785 is a 4 core processor with a clock frequency of 1.49 GHz (2.41 GHz). The Intel Core i7-8559U has 4 CPU cores with a clock frequency of 2.70 GHz (4.50 GHz).

Intel Atom Z3785 Characteristic Intel Core i7-8559U
4 Cores 4
4 Threads 8
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.49 GHz Frequency 2.70 GHz
2.41 GHz Turbo Frequency (1 Core) 4.50 GHz
-- Turbo Frequency (All Cores) 3.20 GHz

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.

Intel Atom Z3785 Characteristic Intel Core i7-8559U
-- 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.

Intel HD Graphics (Bay Trail GT1) GPU Intel Iris Plus Graphics 655
0.31 GHz GPU frequency 0.30 GHz
0.83 GHz GPU (Turbo) 1.20 GHz
7 GPU Generation 9.5
22 nm Technology 14 nm
2 Max. displays 3
4 Compute units 48
32 Shader 384
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 32 GB
11.2 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.

Intel HD Graphics (Bay Trail GT1) GPU Intel Iris Plus Graphics 655
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Atom Z3785 supports a maximum of 4 GB of memory in 2 memory channels. The Intel Core i7-8559U can connect up to 32 GB of memory in 2 memory channels.

Intel Atom Z3785 Characteristic Intel Core i7-8559U
LPDDR3-1333 Memory DDR4-2400
4 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 38.4 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 6.00 MB
-- PCIe version 3.0
-- PCIe lanes 16
-- PCIe Bandwidth 15.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom Z3785 has a TDP of 4 W, that of the Intel Core i7-8559U is 28 W.

Intel Atom Z3785 Characteristic Intel Core i7-8559U
4 W TDP (PL1 / PBP) 28 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
90 °C Tjunction max. --

Technical details

The Intel Atom Z3785 has a 2.00 MB cache, while the Intel Core i7-8559U cache has a total of 6.00 MB.

Intel Atom Z3785 Characteristic Intel Core i7-8559U
22 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX2
BGA 1380 Socket BGA 1528
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Operating systems Windows 10, Windows 11, Linux
Q2/2014 Release date Q2/2018
-- 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.
Intel Atom Z3785 Intel Atom Z3785
Intel HD Graphics (Bay Trail GT1) @ 0.83 GHz
53 (6%)
Intel Core i7-8559U Intel Core i7-8559U
Intel Iris Plus Graphics 655 @ 1.20 GHz
922 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 2.41 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 4.50 GHz
1103 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 3.20 GHz
4288 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 2.41 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 4.50 GHz
1390 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 3.20 GHz
4682 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 2.41 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 4.50 GHz
431 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 3.20 GHz
1572 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 3.20 GHz
8665 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 2.70 GHz
2324 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 2.41 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 4.50 GHz
184 (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.
Intel Atom Z3785 Intel Atom Z3785
4C 4T @ 1.49 GHz
0 (0%)
Intel Core i7-8559U Intel Core i7-8559U
4C 8T @ 3.20 GHz
675 (100%)

Devices using this processor

Intel Atom Z3785 Intel Core i7-8559U
Unknown Unknown

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