Intel Pentium 4405U vs Intel Celeron 3855U

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CPU comparison with benchmarks


Intel Pentium 4405U CPU1 vs CPU2 Intel Celeron 3855U
Intel Pentium 4405U Intel Celeron 3855U

CPU comparison

Intel Pentium 4405U or Intel Celeron 3855U - 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 Intel Pentium 4405U has 2 cores with 4 threads and clocks with a maximum frequency of 2.10 GHz. Up to 32 GB of memory is supported in 2 memory channels. The Intel Pentium 4405U was released in Q3/2015.

The Intel Celeron 3855U has 2 cores with 2 threads and clocks with a maximum frequency of 1.60 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Celeron 3855U was released in Q4/2015.
Intel Pentium (150) Family Intel Celeron (165)
Intel Pentium 4000 (2) CPU group Intel Celeron 3000 (10)
6 Generation 7
Skylake U Architecture Kaby Lake U
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Pentium 4405U is a 2 core processor with a clock frequency of 2.10 GHz. The Intel Celeron 3855U has 2 CPU cores with a clock frequency of 1.60 GHz.

Intel Pentium 4405U Characteristic Intel Celeron 3855U
2 Cores 2
4 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.10 GHz Frequency 1.60 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 Pentium 4405U Characteristic Intel Celeron 3855U
-- AI hardware --
-- 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.

Intel HD Graphics 510 GPU Intel HD Graphics 510
0.30 GHz GPU frequency 0.30 GHz
0.95 GHz GPU (Turbo) 0.90 GHz
9 GPU Generation 9
14 nm Technology 14 nm
3 Max. displays 3
12 Compute units 12
96 Shader 96
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 32 GB
12.0 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.

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

Memory & PCIe

The Intel Pentium 4405U supports a maximum of 32 GB of memory in 2 memory channels. The Intel Celeron 3855U can connect up to 32 GB of memory in 2 memory channels.

Intel Pentium 4405U Characteristic Intel Celeron 3855U
DDR4-2133 Memory LPDDR3-1866, DDR4-2133, DDR3L-1600
32 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
34.1 GB/s Max. Bandwidth 34.1 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 2.00 MB
2.0 PCIe version 2.0
10 PCIe lanes 10
5.0 GB/s PCIe Bandwidth 5.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Pentium 4405U has a TDP of 15 W, that of the Intel Celeron 3855U is 15 W.

Intel Pentium 4405U Characteristic Intel Celeron 3855U
15 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 10 W
-- Tjunction max. 100 °C

Technical details

The Intel Pentium 4405U has a 2.00 MB cache, while the Intel Celeron 3855U cache has a total of 2.00 MB.

Intel Pentium 4405U Characteristic Intel Celeron 3855U
14 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 1356 Socket --
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2015 Release date Q4/2015
-- Release price 107 $
show more data show more data


Rate these processors

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:
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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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
492 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
430 (87%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
1236 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
848 (69%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
445 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
361 (81%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
972 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
632 (65%)

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 Pentium 4405U Intel Pentium 4405U
Intel HD Graphics 510 @ 0.95 GHz
182 (100%)
Intel Celeron 3855U Intel Celeron 3855U
Intel HD Graphics 510 @ 0.90 GHz
173 (95%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
2100 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
1265 (60%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
89 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
68 (76%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
227 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
127 (56%)

Devices using this processor

Intel Pentium 4405U Intel Celeron 3855U
Unknown Unknown

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