Intel Celeron 3955U vs Intel Atom Z3795

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CPU comparison with benchmarks


Intel Celeron 3955U CPU1 vs CPU2 Intel Atom Z3795
Intel Celeron 3955U Intel Atom Z3795

CPU comparison

In this CPU comparison, we compare the Intel Celeron 3955U and the Intel Atom Z3795 and use benchmarks to check which processor is faster.

We compare the Intel Celeron 3955U 2 core processor released in Q4/2015 with the Intel Atom Z3795 which has 4 CPU cores and was introduced in Q1/2014.
Intel Celeron (165) Family Intel Atom (101)
Intel Celeron 3000 (10) CPU group Intel Atom Z3700 (16)
7 Generation 4
Kaby Lake U Architecture Bay Trail
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Celeron 3955U is a 2 core processor with a clock frequency of 2.00 GHz. The processor can compute 2 threads at the same time. The Intel Atom Z3795 clocks with 1.59 GHz (2.39 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

Intel Celeron 3955U Characteristic Intel Atom Z3795
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
2.00 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.

Intel Celeron 3955U Characteristic Intel Atom Z3795
-- 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.

Intel HD Graphics 510 GPU Intel HD Graphics (Bay Trail GT1)
0.30 GHz GPU frequency 0.31 GHz
0.90 GHz GPU (Turbo) 0.78 GHz
9 GPU Generation 7
14 nm Technology 22 nm
3 Max. displays 2
12 Compute units 4
96 Shader 32
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 2 GB
12.0 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.

Intel HD Graphics 510 GPU Intel HD Graphics (Bay Trail GT1)
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode Codec JPEG Decode

Memory & PCIe

Up to 32 GB of memory in a maximum of 2 memory channels is supported by the Intel Celeron 3955U, while the Intel Atom Z3795 supports a maximum of 4 GB of memory with a maximum memory bandwidth of 17.1 GB/s enabled.

Intel Celeron 3955U Characteristic Intel Atom Z3795
LPDDR3-1866, DDR4-2133, DDR3L-1600 Memory LPDDR3-1066
32 GB Max. Memory 4 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
34.1 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 2.00 MB
3.0 PCIe version --
12 PCIe lanes --
11.8 GB/s PCIe Bandwidth --

Thermal Management

The Intel Celeron 3955U has a TDP of 15 W. The TDP of the Intel Atom Z3795 is 3.5 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Celeron 3955U Characteristic Intel Atom Z3795
15 W TDP (PL1 / PBP) 3.5 W
-- TDP (PL2) --
-- TDP up --
10 W TDP down --
100 °C Tjunction max. 90 °C

Technical details

The Intel Celeron 3955U has 2.00 MB cache and is manufactured in 14 nm. The cache of Intel Atom Z3795 is at 2.00 MB. The processor is manufactured in 22 nm.

Intel Celeron 3955U Characteristic Intel Atom Z3795
14 nm Technology 22 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
-- Socket BGA 1380
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Linux Operating systems
Q4/2015 Release date Q1/2014
-- Release price 40 $
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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 4 CPU benchmarks

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 Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
514 (100%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 2.39 GHz
227 (44%)

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 Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
1018 (100%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
779 (77%)

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 Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
445 (100%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 2.39 GHz
174 (39%)

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 Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
780 (100%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
489 (63%)

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 Celeron 3955U Intel Celeron 3955U
Intel HD Graphics 510 @ 0.90 GHz
173 (100%)
Intel Atom Z3795 Intel Atom Z3795
Intel HD Graphics (Bay Trail GT1) @ 0.78 GHz
50 (29%)

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 Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
1488 (100%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
1197 (80%)

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 Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
85 (100%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 2.39 GHz
38 (45%)

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 Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
159 (100%)
Intel Atom Z3795 Intel Atom Z3795
4C 4T @ 1.59 GHz
132 (83%)

Devices using this processor

Intel Celeron 3955U Intel Atom Z3795
Unknown Unknown

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