Intel Atom Z3745 vs AMD Ryzen 5 4680U

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CPU comparison with benchmarks


Intel Atom Z3745 CPU1 vs CPU2 AMD Ryzen 5 4680U
Intel Atom Z3745 AMD Ryzen 5 4680U

CPU comparison

Intel Atom Z3745 or AMD Ryzen 5 4680U - 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 Z3745 has 4 cores with 4 threads and clocks with a maximum frequency of 1.86 GHz. Up to 4 GB of memory is supported in 2 memory channels. The Intel Atom Z3745 was released in Q1/2014.

The AMD Ryzen 5 4680U has 6 cores with 12 threads and clocks with a maximum frequency of 4.00 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The AMD Ryzen 5 4680U was released in Q2/2021.
Intel Atom (108) Family AMD Ryzen 5 (86)
Intel Atom Z3700 (16) CPU group AMD Ryzen 4000U (11)
4 Generation 3
Bay Trail Architecture Renoir (Zen 2)
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom Z3745 is a 4 core processor with a clock frequency of 1.33 GHz (1.86 GHz). The AMD Ryzen 5 4680U has 6 CPU cores with a clock frequency of 2.20 GHz (4.00 GHz).

Intel Atom Z3745 Characteristic AMD Ryzen 5 4680U
4 Cores 6
4 Threads 12
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.33 GHz Frequency 2.20 GHz
1.86 GHz Turbo Frequency (1 Core) 4.00 GHz
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Atom Z3745 Characteristic AMD Ryzen 5 4680U
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

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 AMD Radeon RX Vega 7 (Renoir)
0.31 GHz GPU frequency 0.40 GHz
0.78 GHz GPU (Turbo) 1.50 GHz
7 GPU Generation 9
22 nm Technology 7 nm
2 Max. displays 3
4 Compute units 7
32 Shader 448
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 2 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 AMD Radeon RX Vega 7 (Renoir)
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 Z3745 supports a maximum of 4 GB of memory in 2 memory channels. The AMD Ryzen 5 4680U can connect up to 64 GB of memory in 2 memory channels.

Intel Atom Z3745 Characteristic AMD Ryzen 5 4680U
LPDDR3-1066 Memory LPDDR4-4266, DDR4-3200
4 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
17.1 GB/s Max. Bandwidth 51.2 GB/s
No ECC Yes
-- L2 Cache 3.00 MB
2.00 MB L3 Cache 8.00 MB
-- PCIe version 3.0
-- PCIe lanes 12
-- PCIe Bandwidth 11.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom Z3745 has a TDP of 4 W, that of the AMD Ryzen 5 4680U is 15 W.

Intel Atom Z3745 Characteristic AMD Ryzen 5 4680U
4 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up 25 W
-- TDP down 10 W
90 °C Tjunction max. 105 °C

Technical details

The Intel Atom Z3745 has a 2.00 MB cache, while the AMD Ryzen 5 4680U cache has a total of 11.00 MB.

Intel Atom Z3745 Characteristic AMD Ryzen 5 4680U
22 nm Technology 7 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
BGA 1380 Socket FP6
VT-x, VT-x EPT Virtualization AMD-V, SVM
Yes AES-NI Yes
Operating systems Windows 10, Windows 11, Linux
Q1/2014 Release date Q2/2021
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Atom Z3745 to help other visitors make their purchasing decisions. The average rating is 3.0 stars (2 ratings). Rate now:
Here you can rate the AMD Ryzen 5 4680U to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Atom Z3745 (17%)
AMD Ryzen 5 4680U (100%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Atom Z3745 (9%)
AMD Ryzen 5 4680U (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 Z3745 Intel Atom Z3745
4C 4T @ 1.86 GHz
182 (17%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 4.00 GHz
1082 (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 Z3745 Intel Atom Z3745
4C 4T @ 1.33 GHz
598 (12%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 2.20 GHz
4890 (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.
Intel Atom Z3745 Intel Atom Z3745
Intel HD Graphics (Bay Trail GT1) @ 0.78 GHz
50 (4%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
AMD Radeon RX Vega 7 (Renoir) @ 1.50 GHz
1343 (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 Z3745 Intel Atom Z3745
4C 4T @ 1.33 GHz
621 (5%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 2.20 GHz
13521 (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.
Intel Atom Z3745 Intel Atom Z3745
4C 4T @ 1.86 GHz
0 (0%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 4.00 GHz
1033 (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.
Intel Atom Z3745 Intel Atom Z3745
4C 4T @ 1.33 GHz
0 (0%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 2.20 GHz
6215 (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 Z3745 Intel Atom Z3745
4C 4T @ 1.86 GHz
0 (0%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 4.00 GHz
448 (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 Z3745 Intel Atom Z3745
4C 4T @ 1.33 GHz
0 (0%)
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 2.20 GHz
2554 (100%)

Devices using this processor

Intel Atom Z3745 AMD Ryzen 5 4680U
Unknown Microsoft Surface Laptop 4 13.5

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