Intel Atom E3805 vs Intel Pentium 4405U

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CPU comparison with benchmarks


Intel Atom E3805 CPU1 vs CPU2 Intel Pentium 4405U
Intel Atom E3805 Intel Pentium 4405U

CPU comparison

In this CPU comparison, we compare the Intel Atom E3805 and the Intel Pentium 4405U 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 Pentium 4405U which has 2 CPU cores and was introduced in Q3/2015.
Intel Atom (101) Family Intel Pentium (150)
Intel Atom E3800 (6) CPU group Intel Pentium 4000 (2)
4 Generation 6
Bay Trail Architecture Skylake U
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 Pentium 4405U clocks with 2.10 GHz, has 2 CPU cores and can calculate 4 threads in parallel.

Intel Atom E3805 Characteristic Intel Pentium 4405U
2 Cores 2
2 Threads 4
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.33 GHz Frequency 2.10 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 Pentium 4405U
-- 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 Intel HD Graphics 510
GPU frequency 0.30 GHz
-- GPU (Turbo) 0.95 GHz
-- GPU Generation 9
Technology 14 nm
Max. displays 3
-- Compute units 12
-- Shader 96
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 32 GB
-- DirectX Version 12.0

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 510
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode
No Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode / Encode
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 Pentium 4405U supports a maximum of 32 GB of memory with a maximum memory bandwidth of 34.1 GB/s enabled.

Intel Atom E3805 Characteristic Intel Pentium 4405U
DDR3L-1066 Memory DDR4-2133
8 GB Max. Memory 32 GB
1 (Single Channel) Memory channels 2 (Dual Channel)
8.6 GB/s Max. Bandwidth 34.1 GB/s
Yes ECC No
-- L2 Cache --
1.00 MB L3 Cache 2.00 MB
2.0 PCIe version 2.0
4 PCIe lanes 10
2.0 GB/s PCIe Bandwidth 5.0 GB/s

Thermal Management

The Intel Atom E3805 has a TDP of 3 W. The TDP of the Intel Pentium 4405U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Atom E3805 Characteristic Intel Pentium 4405U
3 W TDP (PL1 / PBP) 15 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 Pentium 4405U is at 2.00 MB. The processor is manufactured in 14 nm.

Intel Atom E3805 Characteristic Intel Pentium 4405U
22 nm Technology 14 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 BGA 1356
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Operating systems Windows 10, Linux
Q4/2014 Release date Q3/2015
31 $ Release price --
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Rate these processors

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Here you can rate the Intel Pentium 4405U to help other visitors make their purchasing decisions. The average rating is 1.0 stars (3 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 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 Atom E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
130 (26%)
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
492 (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 (20%)
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
1236 (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 (19%)
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
2100 (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.
Intel Atom E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
0 (0%)
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
445 (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.
Intel Atom E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
0 (0%)
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
972 (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 Pentium 4405U Intel Pentium 4405U
Intel HD Graphics 510 @ 0.95 GHz
182 (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.
Intel Atom E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
0 (0%)
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
89 (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.
Intel Atom E3805 Intel Atom E3805
2C 2T @ 1.33 GHz
0 (0%)
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
227 (100%)

Devices using this processor

Intel Atom E3805 Intel Pentium 4405U
Unknown Unknown

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