Atom C3558 vs C3955

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1783	2457
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.38	0.47
Market segment	Server	Server
Series	Intel Atom	Intel Atom
Power efficiency	4.38	3.67
Designer	Intel	Intel
Architecture codename	Goldmont (2016−2017)	Goldmont (2016−2017)
Release date	15 August 2017 (8 years ago)	15 August 2017 (8 years ago)
Launch price (MSRP)	$434	$86

Cost-effectiveness evaluation

Performance per price, higher is better.

Atom C3558 has 24% better value for money than Atom C3955.

Performance to price scatter graph

Detailed specifications

Basic parameters of Atom C3955 and Atom C3558: 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 cores	16 (Hexadeca-Core)	4 (Quad-Core)
Threads	16	4
Base clock speed	2.1 GHz	2.2 GHz
Boost clock speed	2.4 GHz	2.2 GHz
Multiplier	21	22
L1 cache	896 KB	224 KB
L2 cache	16 MB	8 MB
L3 cache	16 MB	8 MB
Chip lithography	14 nm	14 nm
Maximum core temperature	78 °C	83 °C
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Atom C3955 and Atom C3558 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 configuration	1 (Uniprocessor)	1 (Uniprocessor)
Socket	FCBGA1310	FCBGA1310
Power consumption (TDP)	32 Watt	16 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3955 and Atom C3558. You'll probably need this information if you require some particular technology.

AES-NI	+	+
Enhanced SpeedStep (EIST)	+	+
QuickAssist	-	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	-	-

Security technologies

Atom C3955 and Atom C3558 technologies aimed at improving security, for example, by protecting against hacks.

EDB	+	+
Secure Boot	+	+
SGX	-	-
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3955 and Atom C3558 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3955 and Atom C3558. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 2400	DDR4: 2133
Maximum memory size	256 GB	256 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	29.871 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Atom C3955 and Atom C3558.

PCIe version	3	3
PCI Express lanes	16	12
USB revision	3	3
Total number of SATA ports	16	12
Number of USB ports	8	8
Integrated LAN	4x10/2.5/1 GBE	2x10/2.5/1 GBE + 2x2.5/1 GBE

Synthetic benchmarks

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating.

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Pros & cons summary

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Performance score	3.32	1.39
Physical cores	16	4
Threads	16	4
Power consumption (TDP)	32 Watt	16 Watt