Qualcomm Snapdragon 427 vs Intel Atom Z3795

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CPU comparison with benchmarks


Qualcomm Snapdragon 427 CPU1 vs CPU2 Intel Atom Z3795
Qualcomm Snapdragon 427 Intel Atom Z3795

CPU comparison

Qualcomm Snapdragon 427 or Intel Atom Z3795 - 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 Qualcomm Snapdragon 427 has 4 cores with 4 threads and clocks with a maximum frequency of 1.40 GHz. Up to 4 GB of memory is supported in 1 memory channels. The Qualcomm Snapdragon 427 was released in Q1/2017.

The Intel Atom Z3795 has 4 cores with 4 threads and clocks with a maximum frequency of 2.39 GHz. The CPU supports up to 4 GB of memory in 2 memory channels. The Intel Atom Z3795 was released in Q1/2014.
Qualcomm Snapdragon (102) Family Intel Atom (108)
Qualcomm Snapdragon 425/427 (2) CPU group Intel Atom Z3700 (16)
3 Generation 4
Cortex-A53 Architecture Bay Trail
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Qualcomm Snapdragon 427 is a 4 core processor with a clock frequency of 1.40 GHz. The Intel Atom Z3795 has 4 CPU cores with a clock frequency of 1.59 GHz (2.39 GHz).

Qualcomm Snapdragon 427 Characteristic Intel Atom Z3795
4 Cores 4
4 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
1.40 GHz Frequency 1.59 GHz
-- Turbo Frequency (1 Core) 2.39 GHz
-- Turbo Frequency (All Cores) --

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.

Qualcomm Snapdragon 427 Characteristic Intel Atom Z3795
Qualcomm AI engine AI hardware --
Hexagon 536 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.

Qualcomm Adreno 308 GPU Intel HD Graphics (Bay Trail GT1)
0.50 GHz GPU frequency 0.31 GHz
0.50 GHz GPU (Turbo) 0.78 GHz
3 GPU Generation 7
28 nm Technology 22 nm
0 Max. displays 2
-- Compute units 4
24 Shader 32
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
11 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.

Qualcomm Adreno 308 GPU Intel HD Graphics (Bay Trail GT1)
Decode Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode

Memory & PCIe

The Qualcomm Snapdragon 427 supports a maximum of 4 GB of memory in 1 memory channels. The Intel Atom Z3795 can connect up to 4 GB of memory in 2 memory channels.

Qualcomm Snapdragon 427 Characteristic Intel Atom Z3795
LPDDR3-1333 Memory LPDDR3-1066
4 GB Max. Memory 4 GB
1 (Single Channel) Memory channels 2 (Dual Channel)
5.4 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache 2.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Qualcomm Snapdragon 427 has a TDP of --, that of the Intel Atom Z3795 is 3.5 W.

Qualcomm Snapdragon 427 Characteristic Intel Atom Z3795
-- TDP (PL1 / PBP) 3.5 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 90 °C

Technical details

The Qualcomm Snapdragon 427 has a 0.00 MB cache, while the Intel Atom Z3795 cache has a total of 2.00 MB.

Qualcomm Snapdragon 427 Characteristic Intel Atom Z3795
28 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
Q1/2017 Release date Q1/2014
-- Release price 40 $
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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Qualcomm Snapdragon 427 (51%)
Intel Atom Z3795 (100%)
⌀ Multi core performance in 2 CPU benchmarks
Qualcomm Snapdragon 427 (43%)
Intel Atom Z3795 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
4C 4T @ 1.40 GHz
116 (51%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 2.39 GHz
227 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
4C 4T @ 1.40 GHz
376 (48%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
779 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
Qualcomm Adreno 308 @ 0.50 GHz
24 (48%)
Intel Atom Z3795 Intel Atom Z3795
Intel HD Graphics (Bay Trail GT1) @ 0.78 GHz
50 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
4C 4T @ 1.40 GHz
437 (37%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
1197 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
4C 4T @ 1.40 GHz
0 (0%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 2.39 GHz
174 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
4C 4T @ 1.40 GHz
0 (0%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
489 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
4C 4T @ 1.40 GHz
0 (0%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 2.39 GHz
38 (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.
Qualcomm Snapdragon 427 Qualcomm Snapdragon 427
4C 4T @ 1.40 GHz
0 (0%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
132 (100%)

Devices using this processor

Qualcomm Snapdragon 427 Intel Atom Z3795
Unknown Unknown

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