Intel Atom E3805 vs Intel Atom Z3735D

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CPU comparison with benchmarks


Intel Atom E3805 CPU1 vs CPU2 Intel Atom Z3735D
Intel Atom E3805 Intel Atom Z3735D

CPU comparison

In this CPU comparison, we compare the Intel Atom E3805 and the Intel Atom Z3735D and use benchmarks to check which processor is faster.

We compare the Intel Atom E3805 2 core processor released in Q4/2014 with the Intel Atom Z3735D which has 4 CPU cores and was introduced in Q1/2014.
Intel Atom (108) Family Intel Atom (108)
Intel Atom E3800 (6) CPU group Intel Atom Z3700 (16)
4 Generation 4
Bay Trail Architecture Bay Trail
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom E3805 is a 2 core processor with a clock frequency of 1.33 GHz. The processor can compute 2 threads at the same time. The Intel Atom Z3735D clocks with 1.33 GHz (1.83 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

Intel Atom E3805 Characteristic Intel Atom Z3735D
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
1.33 GHz Frequency 1.33 GHz
-- Turbo Frequency (1 Core) 1.83 GHz
-- Turbo Frequency (All Cores) 1.83 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 E3805 Characteristic Intel Atom Z3735D
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

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.

no iGPU GPU Intel HD Graphics (Bay Trail GT1)
GPU frequency 0.31 GHz
-- GPU (Turbo) 0.65 GHz
-- GPU Generation 7
Technology 22 nm
Max. displays 2
-- Compute units 4
-- Shader 32
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- 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.

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

Memory & PCIe

Up to 8 GB of memory in a maximum of 1 memory channels is supported by the Intel Atom E3805, while the Intel Atom Z3735D supports a maximum of 2 GB of memory with a maximum memory bandwidth of 10.6 GB/s enabled.

Intel Atom E3805 Characteristic Intel Atom Z3735D
DDR3L-1066 Memory DDR3L-1333
8 GB Max. Memory 2 GB
1 (Single Channel) Memory channels 1 (Single Channel)
8.6 GB/s Max. Bandwidth 10.6 GB/s
Yes ECC No
-- L2 Cache --
1.00 MB L3 Cache 2.00 MB
2.0 PCIe version --
4 PCIe lanes --
2.0 GB/s PCIe Bandwidth --

Thermal Management

The Intel Atom E3805 has a TDP of 3 W. The TDP of the Intel Atom Z3735D is 4 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Atom E3805 Characteristic Intel Atom Z3735D
3 W TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
110 °C Tjunction max. --

Technical details

The Intel Atom E3805 has 1.00 MB cache and is manufactured in 22 nm. The cache of Intel Atom Z3735D is at 2.00 MB. The processor is manufactured in 22 nm.

Intel Atom E3805 Characteristic Intel Atom Z3735D
22 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
BGA 1170 Socket --
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Operating systems
Q4/2014 Release date Q1/2014
31 $ Release price --
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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Atom E3805 (69%)
Intel Atom Z3735D (100%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Atom E3805 (48%)
Intel Atom Z3735D (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 E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
130 (69%)
Intel Atom Z3735D Intel Atom Z3735D
4C 4T @ 1.83 GHz
188 (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 E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
250 (43%)
Intel Atom Z3735D Intel Atom Z3735D
4C 4T @ 1.83 GHz
581 (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 E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
406 (53%)
Intel Atom Z3735D Intel Atom Z3735D
4C 4T @ 1.83 GHz
761 (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 E3805 Intel Atom E3805
@ 0.00 GHz
0 (0%)
Intel Atom Z3735D Intel Atom Z3735D
Intel HD Graphics (Bay Trail GT1) @ 0.65 GHz
41 (100%)

Devices using this processor

Intel Atom E3805 Intel Atom Z3735D
Unknown Unknown

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