Intel Xeon Gold 5120 vs Intel Atom Z3735G

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CPU comparison with benchmarks


Intel Xeon Gold 5120 CPU1 vs CPU2 Intel Atom Z3735G
Intel Xeon Gold 5120 Intel Atom Z3735G

CPU comparison

Intel Xeon Gold 5120 or Intel Atom Z3735G - 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 Xeon Gold 5120 has 14 cores with 28 threads and clocks with a maximum frequency of 3.20 GHz. Up to 768 GB of memory is supported in 6 memory channels. The Intel Xeon Gold 5120 was released in Q3/2017.

The Intel Atom Z3735G has 4 cores with 4 threads and clocks with a maximum frequency of 1.83 GHz. The CPU supports up to 1 GB of memory in 1 memory channels. The Intel Atom Z3735G was released in Q1/2014.
Intel Xeon Gold (148) Family Intel Atom (101)
Intel Xeon Gold 5100/6100 (34) CPU group Intel Atom Z3700 (16)
1 Generation 4
Skylake Architecture Bay Trail
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Xeon Gold 5120 has 14 CPU cores and can calculate 28 threads in parallel. The clock frequency of the Intel Xeon Gold 5120 is 2.20 GHz (3.20 GHz) while the Intel Atom Z3735G has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Atom Z3735G is at 1.33 GHz (1.83 GHz).

Intel Xeon Gold 5120 Characteristic Intel Atom Z3735G
14 Cores 4
28 Threads 4
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.20 GHz Frequency 1.33 GHz
3.20 GHz Turbo Frequency (1 Core) 1.83 GHz
2.60 GHz Turbo Frequency (All Cores) 1.83 GHz

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 Xeon Gold 5120 Characteristic Intel Atom Z3735G
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Xeon Gold 5120 or Intel Atom Z3735G has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU Intel HD Graphics (Bay Trail GT1)
GPU frequency 0.31 GHz
-- GPU (Turbo) 0.65 GHz
-- GPU Generation 7
Technology 22 nm
Max. displays 2
-- Compute units 4
-- Shader 32
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- 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.

no iGPU GPU Intel HD Graphics (Bay Trail GT1)
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode

Memory & PCIe

The Intel Xeon Gold 5120 can use up to 768 GB of memory in 6 memory channels. The maximum memory bandwidth is 115.2 GB/s. The Intel Atom Z3735G supports up to 1 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 5.3 GB/s.

Intel Xeon Gold 5120 Characteristic Intel Atom Z3735G
DDR4-2400 Memory DDR3L-1333
768 GB Max. Memory 1 GB
6 (Hexa Channel) Memory channels 1 (Single Channel)
115.2 GB/s Max. Bandwidth 5.3 GB/s
Yes ECC No
-- L2 Cache --
19.00 MB L3 Cache 2.00 MB
3.0 PCIe version --
48 PCIe lanes --
47.3 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Xeon Gold 5120 is 105 W, while the Intel Atom Z3735G has a TDP of 4 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Xeon Gold 5120 Characteristic Intel Atom Z3735G
105 W TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Xeon Gold 5120 is manufactured in 14 nm and has 19.00 MB cache. The Intel Atom Z3735G is manufactured in 22 nm and has a 2.00 MB cache.

Intel Xeon Gold 5120 Characteristic Intel Atom Z3735G
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, AVX-512 ISA extensions SSE4.1, SSE4.2
LGA 3647 Socket BGA 592
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Linux Operating systems
Q3/2017 Release date Q1/2014
1700 $ Release price 17 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 3.20 GHz
889 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
182 (20%)

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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 2.60 GHz
9933 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
507 (5%)

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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 2.60 GHz
17703 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
772 (4%)

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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 3.20 GHz
1047 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
0 (0%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 3.20 GHz
298 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 2.60 GHz
4344 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
0 (0%)

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 Xeon Gold 5120 Intel Xeon Gold 5120
@ 0.00 GHz
0 (0%)
Intel Atom Z3735G Intel Atom Z3735G
Intel HD Graphics (Bay Trail GT1) @ 0.65 GHz
41 (100%)

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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 3.20 GHz
139 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
0 (0%)

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 Xeon Gold 5120 Intel Xeon Gold 5120
14C 28T @ 2.60 GHz
2015 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
0 (0%)

Devices using this processor

Intel Xeon Gold 5120 Intel Atom Z3735G
Unknown Unknown

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