Intel Celeron 4305U vs Intel Atom Z3770

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CPU comparison with benchmarks


Intel Celeron 4305U CPU1 vs CPU2 Intel Atom Z3770
Intel Celeron 4305U Intel Atom Z3770

CPU comparison

Intel Celeron 4305U or Intel Atom Z3770 - 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 Celeron 4305U has 2 cores with 2 threads and clocks with a maximum frequency of 2.20 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Celeron 4305U was released in Q2/2019.

The Intel Atom Z3770 has 4 cores with 4 threads and clocks with a maximum frequency of 2.39 GHz. The CPU supports up to 4 GB of memory in 2 memory channels. The Intel Atom Z3770 was released in Q3/2013.
Intel Celeron (165) Family Intel Atom (108)
Intel Celeron 4000 (3) CPU group Intel Atom Z3700 (16)
8 Generation 4
Whiskey Lake U Architecture Bay Trail
Mobile Segment Mobile
-- Predecessor --
Intel Celeron 5305U Successor --

CPU Cores and Base Frequency

The Intel Celeron 4305U is a 2 core processor with a clock frequency of 2.20 GHz. The Intel Atom Z3770 has 4 CPU cores with a clock frequency of 1.46 GHz (2.39 GHz).

Intel Celeron 4305U Characteristic Intel Atom Z3770
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
2.20 GHz Frequency 1.46 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 4305U Characteristic Intel Atom Z3770
-- 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 UHD Graphics 610 GPU Intel HD Graphics (Bay Trail GT1)
0.30 GHz GPU frequency 0.31 GHz
0.90 GHz GPU (Turbo) 0.67 GHz
9.5 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 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 UHD Graphics 610 GPU Intel HD Graphics (Bay Trail GT1)
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode

Memory & PCIe

The Intel Celeron 4305U supports a maximum of 64 GB of memory in 2 memory channels. The Intel Atom Z3770 can connect up to 4 GB of memory in 2 memory channels.

Intel Celeron 4305U Characteristic Intel Atom Z3770
LPDDR3-1866, DDR4-2133 Memory LPDDR3-1066
64 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 --
16 PCIe lanes --
15.8 GB/s PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Celeron 4305U has a TDP of 15 W, that of the Intel Atom Z3770 is 3.5 W.

Intel Celeron 4305U Characteristic Intel Atom Z3770
15 W TDP (PL1 / PBP) 3.5 W
-- TDP (PL2) --
-- TDP up --
12.5 W TDP down --
100 °C Tjunction max. 90 °C

Technical details

The Intel Celeron 4305U has a 2.00 MB cache, while the Intel Atom Z3770 cache has a total of 2.00 MB.

Intel Celeron 4305U Characteristic Intel Atom Z3770
14 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2
BGA 1528 Socket BGA 1380
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems
Q2/2019 Release date Q3/2013
107 $ Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 0 CPU benchmarks
Intel Celeron 4305U (0%)
Intel Atom Z3770 (0%)
⌀ Multi core performance in 1 CPU benchmarks
Intel Celeron 4305U (100%)
Intel Atom Z3770 (42%)

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 4305U Intel Celeron 4305U
Intel UHD Graphics 610 @ 0.90 GHz
173 (100%)
Intel Atom Z3770 Intel Atom Z3770
Intel HD Graphics (Bay Trail GT1) @ 0.67 GHz
43 (25%)

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 4305U Intel Celeron 4305U
2C 2T @ 2.20 GHz
1746 (100%)
Intel Atom Z3770 Intel Atom Z3770
4C 4T @ 1.46 GHz
739 (42%)

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 4305U Intel Celeron 4305U
2C 2T @ 2.20 GHz
570 (100%)
Intel Atom Z3770 Intel Atom Z3770
4C 4T @ 2.39 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 Celeron 4305U Intel Celeron 4305U
2C 2T @ 2.20 GHz
1076 (100%)
Intel Atom Z3770 Intel Atom Z3770
4C 4T @ 1.46 GHz
0 (0%)

Devices using this processor

Intel Celeron 4305U Intel Atom Z3770
Unknown Unknown

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