Intel Atom Z3775 vs AMD A4-9120

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CPU comparison with benchmarks


Intel Atom Z3775 CPU1 vs CPU2 AMD A4-9120
Intel Atom Z3775 AMD A4-9120

CPU comparison

Intel Atom Z3775 or AMD A4-9120 - 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 Z3775 has 4 cores with 4 threads and clocks with a maximum frequency of 2.39 GHz. Up to 4 GB of memory is supported in 2 memory channels. The Intel Atom Z3775 was released in Q1/2014.

The AMD A4-9120 has 2 cores with 2 threads and clocks with a maximum frequency of 2.50 GHz. The CPU supports up to 8 GB of memory in 1 memory channels. The AMD A4-9120 was released in Q2/2017.
Intel Atom (108) Family AMD A (112)
Intel Atom Z3700 (16) CPU group AMD A4-9000 (2)
4 Generation 6
Bay Trail Architecture Stoney Ridge (Excavator)
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom Z3775 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Atom Z3775 is 1.46 GHz (2.39 GHz) while the AMD A4-9120 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD A4-9120 is at 2.20 GHz (2.50 GHz).
Intel Atom Z3775 Characteristic AMD A4-9120
4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
1.46 GHz Frequency 2.20 GHz
2.39 GHz Turbo Frequency (1 Core) 2.50 GHz
-- Turbo Frequency (All Cores) 2.20 GHz

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 Z3775 Characteristic AMD A4-9120
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Atom Z3775 or AMD A4-9120 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
Intel HD Graphics (Bay Trail GT1) GPU AMD Radeon R3 (Stoney Ridge)
0.31 GHz GPU frequency 0.66 GHz
0.78 GHz GPU (Turbo) --
7 GPU Generation 7
22 nm Technology 28 nm
2 Max. displays 3
4 Compute units 2
32 Shader 128
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 R3 (Stoney Ridge)
No Codec h265 / HEVC (8 bit) Decode
No Codec h265 / HEVC (10 bit) Decode
Decode / Encode Codec h264 Decode
No Codec VP9 Decode
No Codec VP8 Decode
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 Z3775 can use up to 4 GB of memory in 2 memory channels. The maximum memory bandwidth is 17.1 GB/s. The AMD A4-9120 supports up to 8 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 17.1 GB/s.
Intel Atom Z3775 Characteristic AMD A4-9120
LPDDR3-1066 Memory DDR4-2133
4 GB Max. Memory 8 GB
2 (Dual Channel) Memory channels 1 (Single Channel)
17.1 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 2.00 MB
-- PCIe version 3.0
-- PCIe lanes 8
-- PCIe Bandwidth 7.9 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Atom Z3775 is 3.5 W, while the AMD A4-9120 has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Atom Z3775 Characteristic AMD A4-9120
3.5 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 10 W
90 °C Tjunction max. 90 °C

Technical details

The Intel Atom Z3775 is manufactured in 22 nm and has 2.00 MB cache. The AMD A4-9120 is manufactured in 28 nm and has a 2.00 MB cache.
Intel Atom Z3775 Characteristic AMD A4-9120
22 nm Technology 28 nm
Monolithic Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
BGA 1380 Socket FP4
VT-x, VT-x EPT Virtualization AMD-V
Yes AES-NI Yes
Operating systems
Q1/2014 Release date Q2/2017
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Atom Z3775 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the AMD A4-9120 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 0 CPU benchmarks
Intel Atom Z3775 (0%)
AMD A4-9120 (0%)
⌀ Multi core performance in 1 CPU benchmarks
Intel Atom Z3775 (36%)
AMD A4-9120 (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 Z3775 Intel Atom Z3775
Intel HD Graphics (Bay Trail GT1) @ 0.78 GHz
50 (30%)
AMD A4-9120 AMD A4-9120
AMD Radeon R3 (Stoney Ridge) @ 0.66 GHz
168 (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 Z3775 Intel Atom Z3775
4C 4T @ 1.46 GHz
703 (36%)
AMD A4-9120 AMD A4-9120
2C 2T @ 2.20 GHz
1968 (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 Z3775 Intel Atom Z3775
4C 4T @ 2.39 GHz
235 (100%)
AMD A4-9120 AMD A4-9120
2C 2T @ 2.50 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.
Intel Atom Z3775 Intel Atom Z3775
4C 4T @ 1.46 GHz
803 (100%)
AMD A4-9120 AMD A4-9120
2C 2T @ 2.20 GHz
0 (0%)

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 Z3775 Intel Atom Z3775
4C 4T @ 1.46 GHz
0 (0%)
AMD A4-9120 AMD A4-9120
2C 2T @ 2.20 GHz
233 (100%)

Devices using this processor
Intel Atom Z3775 AMD A4-9120
Unknown Unknown

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