Intel Atom C3955: specs and benchmarks

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Aggregate performance score

Atom C3955
2017
16 cores / 16 threads, 32 Watt
3.65

Atom C3955 provides poor benchmark performance at 3.65% of a leader's which is a 96-core EPYC 9655P.

Summary

Intel started Atom C3955 sales 15 August 2017 at a recommended price of $434. This is a Goldmont architecture desktop processor primarily aimed at office systems. It has 16 cores and 16 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 2400 MHz and a locked multiplier.

Compatibility-wise, this is FCBGA1310 processor with a TDP of 32 Watt. It supports DDR4: 2400 memory.

Primary details

Atom C3955 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in the ranking1500
Place by popularitynot in top-100
Cost-effectiveness evaluation0.95
Market segmentServer
SeriesIntel Atom
Power efficiency10.79of 100.00 (Ryzen Z1 Extreme)
Architecture codenameGoldmont (2016−2017)
Release date15 August 2017 (7 years ago)
Launch price (MSRP)$434of 17,906 (Xeon Platinum 8280L)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores16 (Hexadeca-Core)
Threads16
Base clock speed2.1 GHzof 4.7 GHz (FX-9590)
Boost clock speed2.4 GHzof 6.2 GHz (Core i9-14900KS)
Multiplier21of 42 (Core i7-7700K)
L1 cache896 KBof 80 KB (EPYC 9965)
L2 cache16 MBof 2 MB (Xeon 6980P)
L3 cache16 MBof 1152 MB (EPYC 9684X)
Chip lithography14 nmof 3 nm (Apple M3 Max 16-Core)
Maximum core temperature78 °Cof 110 °C (Atom x7-E3950)
64 bit support+
Windows 11 compatibility-

Compatibility

Information on Atom C3955 compatibility with other computer components and devices: 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)of 8 (Opteron 842)
SocketFCBGA1310
Power consumption (TDP)32 Wattof 500 Watt (Xeon 6960P)

Technologies and extensions

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

AES-NI+
Enhanced SpeedStep (EIST)+
QuickAssist-
Turbo Boost Technology2.0
Hyper-Threading Technology-

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d+
VT-x+
EPT+

Memory specs

Types, maximum amount and channel number of RAM supported by Atom C3955's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4: 2400
Maximum memory size256 GBof 6 TiB (EPYC 9124)
Max memory channels2of 12 (Xeon Platinum 9221)
Maximum memory bandwidth38.397 GB/sof 460.8 GB/s (EPYC 9124)
ECC memory support+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version3of 5.0 (Core i9-12900K)
PCI Express lanes16of 128 (EPYC 7551P)
USB revision3
Total number of SATA ports16
Max number of SATA 6 Gb/s Ports16
Number of USB ports8
Integrated LAN4x10/2.5/1 GBE

Benchmark performance

Single-core and multi-core benchmark results of Atom C3955. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Atom C3955 3.65

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Atom C3955 5803

Gaming performance

Closest competitors

Atom C3955's performance relative to its closest rivals among server CPUs.


Xeon E5-1620 101.1
Atom C3955 100
Xeon E5-2430 98.63
Xeon X5650 98.63

AMD equivalent

According to our data, the closest AMD alternative to Atom C3955 is Ryzen 3 PRO 1200, which is faster by 6% and higher by 41 positions in our ranking.

Here are some closest AMD rivals to Atom C3955:

Opteron 6276 109.59
Opteron 6344 104.66
Opteron 6378 101.64
Atom C3955 100
Opteron 6274 97.26
Opteron 6376 96.16

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Recommended GPUs

People consider these graphics cards to be good for Atom C3955, according to our PC configuration statistics.

These are the fastest graphics cards for Atom C3955 in our user configuration statistics. There is a total of 4 configurations using Atom C3955 in our database.

All comparisons with Atom C3955

Community ratings

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Questions & comments

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