Intel Atom Z3745D vs Intel Xeon E5-2620 v4

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Atom Z3745D or Intel Atom Z3745D – 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 Z3745D features 4 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q1/2014 and belongs to the 4 generation of the Intel Atom series.
To use the Intel Atom Z3745D, you'll need a motherboard with a BGA 1380 socket.
The Intel Xeon E5-2620 v4 features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q1/2016 and belongs to the 6 generation of the Intel Xeon E5 series.
To use the Intel Xeon E5-2620 v4, you'll need a motherboard with a LGA 2011-3 socket.
Intel Atom Z3700 Group Intel Xeon E5 v4
4 Generation 6
Intel Atom Z3745D Name Intel Xeon E5-2620 v4
Mobile Segment Desktop / Server
Intel Atom Family Intel Xeon E5
 
 

CPU Cores and Base Frequency

The Intel Atom Z3745D has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Atom Z3745D is 1.33 GHz
and turbo frequency for one core is 1.83 GHz.
The Intel Xeon E5-2620 v4 has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Xeon E5-2620 v4 is 2.1 GHz
and turbo frequency for one core is 3.0 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
None None 2.6 GHz
1.83 GHz Turbo Frequency (1 core) 3.0 GHz
normal Core architecture normal
1.33 GHz Frequency 2.1 GHz
4 CPU Cores 8
No Overclocking No
No Hyperthreading Yes
4x Cores 8x
4 Threads 16
 
 

Internal Graphics

The Intel Atom Z3745D has integrated graphics, called iGPU for short.
Specifically, the Intel Atom Z3745D 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 Xeon E5-2620 v4 does not have integrated graphics.
0.79 GHz GPU (Turbo) --
22 nm Technology --
11.2 Direct X --
2.0 GB Max. GPU Memory 0 bytes
4 Execution units --
Q3/2013 Release date --
Intel HD Graphics (Bay Trail GT1) GPU name
32 Shaders --
0.31 GHz GPU frequency --
7 Generation --
-- Max. displays --
 
 

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

Memory & PCIe

The processor supports a maximum memory capacity of 2.0 GB distributed across 1 memory channels. It offers a peak memory bandwidth of 10.6 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 1.5 TB distributed across 4 memory channels. It offers a peak memory bandwidth of 68.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
DDR3L-1333 Memory type DDR4-2133
10.6 GB/s Bandwidth 68.2 GB/s
Yes AES-NI Yes
No ECC Yes
pci PCIe pci
2.0 GB Max. Memory 1.5 TB
1 Memory channels 4
 
 

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 85 W watts.
4 W TDP (PL1 / PBP) 85 W
90 °C Tjunction max --
 
 

Technical details

The Intel Atom Z3745D 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 Xeon E5-2620 v4 is manufactured using a 14 nm process.
In total, this processor boasts a generous 20.0 MB cache.
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT, VT-d
22 nm Technology 14 nm
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX2
-- Part Number --
Monolithic Chip design Monolithic
Q1/2014 Release date Q1/2016
-- Release price 420 $
0 bytes L2-Cache 0 bytes
Technical data sheet Documents Technical data sheet
2.0 MB L3-Cache 20.0 MB
BGA 1380 Socket LGA 2011-3
Operating systems Windows 10, Linux
Bay Trail Architecture Broadwell E
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Xeon E5-2620 v4
8C 16T @ 2.1 GHz
27479
27479
Intel Atom Z3745D
4C 4T @ 1.33 GHz
2601
2601

Geekbench 5, 64bit (Multi-Core)

Intel Xeon E5-2620 v4
8C 16T @ 2.1 GHz
4936
4936
Intel Atom Z3745D
4C 4T @ 1.33 GHz
631
631

Geekbench 6 (Multi-Core)

Intel Xeon E5-2620 v4
8C 16T @ 2.1 GHz
4852
4852
Intel Atom Z3745D
4C 4T @ 1.33 GHz
306
306

Geekbench 3, 64bit (Single-Core)

Intel Xeon E5-2620 v4
8C 16T @ 2.1 GHz
3531
3531
Intel Atom Z3745D
4C 4T @ 1.33 GHz
776
776

Geekbench 6 (Single-Core)

Intel Xeon E5-2620 v4
8C 16T @ 2.1 GHz
1004
1004
Intel Atom Z3745D
4C 4T @ 1.33 GHz
138
138