Atom C3950 vs C3858

Primary details

Comparing Atom C3858 and Atom C3950 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1636	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.01	no data
Market segment	Server	Server
Series	Intel Atom	Intel Atom
Power efficiency	11.23	no data
Architecture codename	Goldmont (2016−2017)	Goldmont (2016−2017)
Release date	15 August 2017 (7 years ago)	15 August 2017 (7 years ago)
Launch price (MSRP)	$332	$389

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom C3858 and Atom C3950 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 cores	12 (Dodeca-Core)	16 (Hexadeca-Core)
Threads	12	16
Base clock speed	2 GHz	1.7 GHz
Boost clock speed	2 GHz	2.2 GHz
Multiplier	20	17
L1 cache	672 KB	896 KB
L2 cache	12 MB	16 MB
L3 cache	12 MB	16 MB
Chip lithography	14 nm	14 nm
Maximum core temperature	83 °C	78 °C
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Atom C3858 and Atom C3950 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)	25 Watt	24 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3858 and Atom C3950. 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 C3858 and Atom C3950 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3858 and Atom C3950 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3858 and Atom C3950. Depending on the motherboard, higher memory frequencies may be supported.

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

Peripherals

Specifications and connection of peripherals supported by Atom C3858 and Atom C3950.

PCIe version	3	3
PCI Express lanes	16	16
USB revision	3	3
Total number of SATA ports	16	16
Max number of SATA 6 Gb/s Ports	16	16
Number of USB ports	8	8
Integrated LAN	4x10/2.5/1 GBE	2x10/2.5/1 GBE + 2x1 GBE

Pros & cons summary

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Physical cores	12	16
Threads	12	16
Power consumption (TDP)	25 Watt	24 Watt

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Should you still have questions on choice between Atom C3858 and Atom C3950, ask them in Comments section, and we shall answer.

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