EPYC Embedded 3251 vs Atom C3955

Primary details

Comparing Atom C3955 and EPYC Embedded 3251 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1487not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.95no data
Market segmentServerServer
SeriesIntel AtomAMD EPYC Embedded
Power efficiency10.80no data
Architecture codenameGoldmont (2016−2017)Zen (2017−2020)
Release date15 August 2017 (7 years ago)21 February 2018 (6 years ago)
Launch price (MSRP)$434$315

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Atom C3955 and EPYC Embedded 3251 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores16 (Hexadeca-Core)8 (Octa-Core)
Threads1616
Base clock speed2.1 GHz2.5 GHz
Boost clock speed2.4 GHz2.5 GHz
Multiplier2125
L1 cache896 KB768 KB
L2 cache16 MB4 MB
L3 cache16 MB16 MB (shared)
Chip lithography14 nm14 nm
Die sizeno data213 mm2
Maximum core temperature78 °Cno data
Number of transistorsno data4800 Million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+

Compatibility

Information on Atom C3955 and EPYC Embedded 3251 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCBGA1310TR4
Power consumption (TDP)32 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3955 and EPYC Embedded 3251. You'll probably need this information if you require some particular technology.

AES-NI++
AVX-+
Enhanced SpeedStep (EIST)+no data
QuickAssist-no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology-no data

Security technologies

Atom C3955 and EPYC Embedded 3251 technologies aimed at improving security, for example, by protecting against hacks.

EDB+no data
Secure Boot+no data
Secure Key+no data
SGX-no data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3955 and EPYC Embedded 3251 are enumerated here.

AMD-V-+
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3955 and EPYC Embedded 3251. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4: 2400DDR4 Eight-channel
Maximum memory size256 GB512 GB
Max memory channels22
Maximum memory bandwidth38.397 GB/s42.671 GB/s
ECC memory support++

Peripherals

Specifications and connection of peripherals supported by Atom C3955 and EPYC Embedded 3251.

PCIe version3no data
PCI Express lanes16no data
USB revision3no data
Total number of SATA ports16no data
Max number of SATA 6 Gb/s Ports16no data
Number of USB ports8no data
Integrated LAN4x10/2.5/1 GBEno data

Pros & cons summary


Recency 15 August 2017 21 February 2018
Physical cores 16 8
Power consumption (TDP) 32 Watt 55 Watt

Atom C3955 has 100% more physical cores, and 71.9% lower power consumption.

EPYC Embedded 3251, on the other hand, has an age advantage of 6 months.

We couldn't decide between Atom C3955 and EPYC Embedded 3251. We've got no test results to judge.


Should you still have questions on choice between Atom C3955 and EPYC Embedded 3251, ask them in Comments section, and we shall answer.

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Intel Atom C3955
Atom C3955
AMD EPYC Embedded 3251
EPYC Embedded 3251

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