Intel Atom серии C3858 vs Intel Atom серии C3958: comparison

Comparison of Intel Atom серии C3858 and Intel Atom серии C3958: key differences and a full specification table.

Key differences

Intel Atom серии C3858 has a lower TDP (25 W vs 31 W).

At the same time, Intel Atom серии C3958 has more cores (16 vs 12) and more threads (16 vs 12).

Both processors match on: base clock (2 GHz), maximum clock (2 GHz), process node (14 nm), maximum memory size (256 GB), memory channels (2), PCIe version (3).

These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.

Key specifications

ParameterIntel Atom серии C3858Intel Atom серии C3958
Cores / threads 12 / 12 16 / 16
Max boost clock 2 GHz 2 GHz
TDP 25 W 31 W
Process 14 nm 14 nm

Full specification table

Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.

Parameter Intel Atom серии C3858 Intel Atom серии C3958
General
Model C3858 C3958
Codename Denverton Denverton
Segment Server Server
Product line Процессоры Intel Atom серии C Процессоры Intel Atom серии C
Process 14 nm 14 nm
Launch date Q3 2017 Q3 2017
Status Launched Launched
Embedded options available Yes Yes
CPU
Cores 12 16
Threads 12 16
Multithreading (SMT/HT) No No
Base clock 2 GHz 2 GHz
Max boost clock 2 GHz 2 GHz
Cache (level unspecified) 12 MB 16 MB
TDP 25 W 31 W
Turbo Boost No No
Instruction set width 64 bit 64 bit
QPI links 0 0
UPI links 0 0
Memory
Max memory size 256 GB 256 GB
Memory types DDR4 DDR4
Memory channels 2 2
ECC memory supported Yes Yes
I/O and interfaces
PCI Express revision 3 3
PCI Express lanes 16 16
PCI Express configurations x2,x4,x8 x2,x4,x8
USB revision 3 3
USB ports 8 8
SATA ports 16 16
SATA 6 Gb/s ports 16 16
Integrated LAN 4x10/2.5/1 GbE 4x10/2.5/1 GbE
Package and thermal
Sockets supported FCBGA1310 FCBGA1310
Max CPU configuration 1 1
Package size 34 mm x 28 mm 34 mm x 28 mm
TCASE 83 °C 83 °C
Min operating temperature 0 °C 0 °C
Security and virtualization
Virtualization (VT-x / AMD-V) Yes Yes
Virtualization for Directed I/O (VT-d) Yes Yes
Extended Page Tables (EPT) Yes Yes
AES-NI Yes Yes
Execute Disable Bit Yes Yes
Secure Key Yes Yes
Intel OS Guard Yes Yes
Intel Boot Guard No No
Intel Software Guard Extensions No No

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