Intel Atom Z3785 vs Intel Pentium 3805U

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Atom Z3785 or Intel Atom Z3785 – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Atom Z3785 features 4 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q2/2014 and belongs to the 4 generation of the Intel Atom series.
To use the Intel Atom Z3785, you'll need a motherboard with a BGA 1380 socket.
The Intel Pentium 3805U features 2 processor cores and has the capability to manage 2 threads concurrently.
It was released in Q1/2015 and belongs to the 4 generation of the Intel Pentium series.
To use the Intel Pentium 3805U, you'll need a motherboard with a BGA 1168 socket.
Mobile Segment Mobile
Intel Atom Z3785 Name Intel Pentium 3805U
Intel Atom Family Intel Pentium
4 Generation 4
Intel Atom Z3700 Group Intel Pentium 3000
 
 

CPU Cores and Base Frequency

The Intel Atom Z3785 has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Atom Z3785 is 1.49 GHz
and turbo frequency for one core is 2.41 GHz.
The Intel Pentium 3805U has 2 CPU cores and can calculate 2 threads in parallel.
The clock frequency of the Intel Pentium 3805U is 1.9 GHz
2.41 GHz Turbo Frequency (1 core) None
No Overclocking No
normal Core architecture normal
1.49 GHz Frequency 1.9 GHz
4 Threads 2
No Hyperthreading No
4 CPU Cores 2
4x Cores 2x
 
 

Internal Graphics

The Intel Atom Z3785 has integrated graphics, called iGPU for short.
Specifically, the Intel Atom Z3785 uses the Intel HD Graphics (Bay Trail GT1), which has 32 texture shaders
and 4 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Pentium 3805U has integrated graphics, called iGPU for short.
Specifically, the Intel Pentium 3805U uses the Intel HD Graphics (Broadwell GT1), which has 96 texture shaders
and 12 execution units.
0.31 GHz GPU frequency 0.1 GHz
Q3/2013 Release date Q1/2015
11.2 Direct X 11.2
Intel HD Graphics (Bay Trail GT1) GPU name Intel HD Graphics (Broadwell GT1)
22 nm Technology 14 nm
-- Max. displays --
32 Shaders 96
2.0 GB Max. GPU Memory 2.0 GB
4 Execution units 12
7 Generation 8
0.83 GHz GPU (Turbo) 0.8 GHz
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

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.
Decode / Encode AVC Decode / Encode
Decode VC-1 Decode
No VP9 No
No h265 / HEVC (10 bit) No
Decode / Encode h264 Decode / Encode
No VP8 Decode
No h265 / HEVC (8 bit) No
Decode JPEG Decode
No AV1 No
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 4.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.3 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 16.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 25.6 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
4.0 GB Max. Memory 16.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC No
21.3 GB/s Bandwidth 25.6 GB/s
LPDDR3-1333 Memory type DDR3-1600
 
 

Thermal Management

The processor has a thermal design power (TDP) of 4 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 15 W watts.
90 °C Tjunction max --
4 W TDP (PL1 / PBP) 15 W
 
 

Technical details

The Intel Atom Z3785 is manufactured using a 22 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 2.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Pentium 3805U is manufactured using a 22 nm process.
Q2/2014 Release date Q1/2015
-- Part Number --
0 bytes L2-Cache 0 bytes
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2
Monolithic Chip design Monolithic
Bay Trail Architecture Haswell U
22 nm Technology 22 nm
BGA 1380 Socket BGA 1168
Operating systems Windows 10, Linux
-- Release price --
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
2.0 MB L3-Cache 2.0 MB