AMD EPYC 7773X vs Intel Atom C3955

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CPU comparison with benchmarks


AMD EPYC 7773X CPU1 vs CPU2 Intel Atom C3955
AMD EPYC 7773X Intel Atom C3955

CPU comparison

AMD EPYC 7773X or Intel Atom C3955 - 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 AMD EPYC 7773X has 64 cores with 128 threads and clocks with a maximum frequency of 3.50 GHz. Up to 4096 GB of memory is supported in 8 memory channels. The AMD EPYC 7773X was released in Q2/2022.

The Intel Atom C3955 has 16 cores with 16 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The Intel Atom C3955 was released in Q3/2017.
AMD EPYC (129) Family Intel Atom (108)
AMD EPYC 7003 (29) CPU group Intel Atom C3000 (20)
3 Generation 5
Milan (Zen 3) Architecture Denverton
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD EPYC 7773X has 64 CPU cores and can calculate 128 threads in parallel. The clock frequency of the AMD EPYC 7773X is 2.20 GHz (3.50 GHz) while the Intel Atom C3955 has 16 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the Intel Atom C3955 is at 2.10 GHz (2.40 GHz).

AMD EPYC 7773X Characteristic Intel Atom C3955
64 Cores 16
128 Threads 16
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.20 GHz Frequency 2.10 GHz
3.50 GHz Turbo Frequency (1 Core) 2.40 GHz
-- Turbo Frequency (All Cores) 2.40 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.

AMD EPYC 7773X Characteristic Intel Atom C3955
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD EPYC 7773X or Intel Atom C3955 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 no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

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 no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The AMD EPYC 7773X can use up to 4096 GB of memory in 8 memory channels. The maximum memory bandwidth is 204.8 GB/s. The Intel Atom C3955 supports up to 256 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s.

AMD EPYC 7773X Characteristic Intel Atom C3955
DDR4-3200 Memory DDR4-2400
4096 GB Max. Memory 256 GB
8 (Octa Channel) Memory channels 2 (Dual Channel)
204.8 GB/s Max. Bandwidth 38.4 GB/s
Yes ECC Yes
32.00 MB L2 Cache 16.00 MB
768.00 MB L3 Cache --
4.0 PCIe version 3.0
128 PCIe lanes 16
252.0 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD EPYC 7773X is 280 W, while the Intel Atom C3955 has a TDP of 32 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD EPYC 7773X Characteristic Intel Atom C3955
280 W TDP (PL1 / PBP) 32 W
-- TDP (PL2) --
-- TDP up --
225 W TDP down --
-- Tjunction max. 100 °C

Technical details

The AMD EPYC 7773X is manufactured in 7 nm and has 800.00 MB cache. The Intel Atom C3955 is manufactured in 14 nm and has a 16.00 MB cache.

AMD EPYC 7773X Characteristic Intel Atom C3955
7 nm Technology 14 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4.1, SSE4.2
SP3 Socket BGA 1310
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q2/2022 Release date Q3/2017
8800 $ Release price 434 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD EPYC 7773X (100%)
Intel Atom C3955 (29%)
⌀ Multi core performance in 1 CPU benchmarks
AMD EPYC 7773X (100%)
Intel Atom C3955 (11%)

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.
AMD EPYC 7773X AMD EPYC 7773X
64C 128T @ 3.50 GHz
1341 (100%)
Intel Atom C3955 Intel Atom C3955
16C 16T @ 2.40 GHz
387 (29%)

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.
AMD EPYC 7773X AMD EPYC 7773X
64C 128T @ 2.20 GHz
45899 (100%)
Intel Atom C3955 Intel Atom C3955
16C 16T @ 2.40 GHz
4896 (11%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
AMD EPYC 7773X AMD EPYC 7773X
64C 128T @ 3.50 GHz
77 (100%)
Intel Atom C3955 Intel Atom C3955
16C 16T @ 2.40 GHz
0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
AMD EPYC 7773X AMD EPYC 7773X
64C 128T @ 3.50 GHz
3902 (100%)
Intel Atom C3955 Intel Atom C3955
16C 16T @ 2.40 GHz
0 (0%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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.
AMD EPYC 7773X AMD EPYC 7773X
64C 128T @ 3.50 GHz
1298 (100%)
Intel Atom C3955 Intel Atom C3955
16C 16T @ 2.40 GHz
0 (0%)

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.
AMD EPYC 7773X AMD EPYC 7773X
64C 128T @ 2.20 GHz
90782 (100%)
Intel Atom C3955 Intel Atom C3955
16C 16T @ 2.40 GHz
0 (0%)

Devices using this processor

AMD EPYC 7773X Intel Atom C3955
Unknown Unknown

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