AMD Ryzen 9 3900X vs Intel Atom Z3785

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Ryzen 9 3900X or AMD Ryzen 9 3900X – 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 AMD Ryzen 9 3900X features 12 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q3/2019 and belongs to the 3 generation of the AMD Ryzen 9 series.
To use the AMD Ryzen 9 3900X, you'll need a motherboard with a AM4 (PGA 1331) socket.
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.
Desktop / Server Segment Mobile
AMD Ryzen 9 3900X Name Intel Atom Z3785
AMD Ryzen 9 Family Intel Atom
3 Generation 4
AMD Ryzen 3000 Group Intel Atom Z3700
 
 

CPU Cores and Base Frequency

The AMD Ryzen 9 3900X has 12 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the AMD Ryzen 9 3900X is 3.8 GHz
and turbo frequency for one core is 4.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
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.
4.6 GHz Turbo Frequency (1 core) 2.41 GHz
Yes Overclocking No
normal Core architecture normal
3.8 GHz Frequency 1.49 GHz
24 Threads 4
Yes Hyperthreading No
12 CPU Cores 4
12x Cores 4x
 
 

Internal Graphics

The AMD Ryzen 9 3900X does not have integrated 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.
-- GPU frequency 0.31 GHz
-- Release date Q3/2013
-- Direct X 11.2
GPU name Intel HD Graphics (Bay Trail GT1)
-- Technology 22 nm
-- Max. displays --
-- Shaders 32
0 bytes Max. GPU Memory 2.0 GB
-- Execution units 4
-- Generation 7
-- GPU (Turbo) 0.83 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.
-- AVC Decode / Encode
-- VC-1 Decode
-- VP9 No
-- h265 / HEVC (10 bit) No
-- h264 Decode / Encode
-- VP8 No
-- h265 / HEVC (8 bit) No
-- JPEG Decode
-- AV1 No
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 51.2 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 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.
2 Memory channels 2
128.0 GB Max. Memory 4.0 GB
pci PCIe pci
Yes AES-NI Yes
Yes ECC No
51.2 GB/s Bandwidth 21.3 GB/s
DDR4-3200 Memory type LPDDR3-1333
 
 

Thermal Management

The processor has a thermal design power (TDP) of 105 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 4 W watts.
95 °C Tjunction max 90 °C
142 W TDP (PL2) None
105 W TDP (PL1 / PBP) 4 W
 
 

Technical details

The AMD Ryzen 9 3900X is manufactured using a 7 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 64.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Atom Z3785 is manufactured using a 22 nm process.
In total, this processor boasts a generous 2.0 MB cache.
Q3/2019 Release date Q2/2014
-- Part Number --
6.0 MB L2-Cache 0 bytes
AMD-V, SVM Virtualization VT-x, VT-x EPT
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 ISA extensions SSE4.1, SSE4.2
Chiplet Chip design Monolithic
Matisse (Zen 2) Architecture Bay Trail
7 nm Technology 22 nm
AM4 (PGA 1331) Socket BGA 1380
Windows 10, Linux, Windows 11 Operating systems
485 $ Release price --
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
64.0 MB L3-Cache 2.0 MB
 
 

Benchmarks

AMD Ryzen 9 3900X and Intel Atom Z3785 in leaderboards