Intel Atom E3805 vs Intel Atom Z2420

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CPU comparison with benchmarks


Intel Atom E3805 CPU1 vs CPU2 Intel Atom Z2420
Intel Atom E3805 Intel Atom Z2420

CPU comparison

In this CPU comparison, we compare the Intel Atom E3805 and the Intel Atom Z2420 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 Z2420 which has 1 CPU cores and was introduced in Q1/2013.
Intel Atom (101) Family Intel Atom (101)
Intel Atom E3800 (6) CPU group Intel Atom Z2400/Z2600 (2)
4 Generation 3
Bay Trail Architecture Penwell
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 Z2420 clocks with 1.20 GHz, has 1 CPU cores and can calculate 2 threads in parallel.

Intel Atom E3805 Characteristic Intel Atom Z2420
2 Cores 1
2 Threads 2
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.33 GHz Frequency 1.20 GHz
-- Turbo Frequency (1 Core) --
-- 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 Atom E3805 Characteristic Intel Atom Z2420
-- 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.

no iGPU GPU PowerVR SGX540
GPU frequency 0.40 GHz
-- GPU (Turbo) --
-- GPU Generation --
Technology 45nm
Max. displays 1
-- Compute units 1
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version 10.1

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 PowerVR SGX540
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

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 Z2420 supports a maximum of 1 GB of memory with a maximum memory bandwidth of 6.4 GB/s enabled.

Intel Atom E3805 Characteristic Intel Atom Z2420
DDR3L-1066 Memory LPDDR2-800
8 GB Max. Memory 1 GB
1 (Single Channel) Memory channels 2 (Dual Channel)
8.6 GB/s Max. Bandwidth 6.4 GB/s
Yes ECC No
-- L2 Cache 0.50 MB
1.00 MB L3 Cache --
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 Z2420 is 3 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Atom E3805 Characteristic Intel Atom Z2420
3 W TDP (PL1 / PBP) 3 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
110 °C Tjunction max. 90 °C

Technical details

The Intel Atom E3805 has 1.00 MB cache and is manufactured in 22 nm. The cache of Intel Atom Z2420 is at 0.50 MB. The processor is manufactured in 32 nm.

Intel Atom E3805 Characteristic Intel Atom Z2420
22 nm Technology 32 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions MMX, SSE3, SSSE3
BGA 1170 Socket BGA 617
VT-x, VT-x EPT Virtualization None
Yes AES-NI No
Operating systems
Q4/2014 Release date Q1/2013
31 $ Release price --
show more data show more data


Rate these processors

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Here you can rate the Intel Atom Z2420 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


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 (100%)
Intel Atom Z2420 Intel Atom Z2420
1C 2T @ 1.20 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 E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
250 (100%)
Intel Atom Z2420 Intel Atom Z2420
1C 2T @ 1.20 GHz
0 (0%)

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 Z2420 Intel Atom Z2420
PowerVR SGX540 @ 0.40 GHz
6 (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 (100%)
Intel Atom Z2420 Intel Atom Z2420
1C 2T @ 1.20 GHz
0 (0%)

Devices using this processor

Intel Atom E3805 Intel Atom Z2420
Unknown Unknown

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