Intel® Atom™ C3955

The Intel Atom C3955 is a server processor with 16 cores and 16 threads, built on the Denverton architecture. It launched in Jul 2017. Clocks run from 2.1 GHz base to 2.4 GHz boost. A 16-MB L3 cache backs the cores (1.0 MB per core). It addresses DDR4 memory up to 256 GB across 2 channels. The chip drops into the FCBGA1310 socket and exposes PCIe 3.0 (16 lanes). Rated TDP is 32 W. Notable platform capabilities: Extended Page Tables (EPT).

The Intel Atom C3955 has 16 physical cores and runs 16 logical threads. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 2.10 GHz and boosts up to 2.40 GHz.

The Intel Atom C3955 is a server processor, belongs to the Intel Atom C family, uses the Denverton architecture, carries the codename Denverton and is manufactured on a 14 nm process. It launched in Jul 2017.

The Intel Atom C3955 has 16 MB of L3 cache. That adds up to about 16.0 MB of cache, or 1.00 MB per core. Feex has no recorded L1 cache size for this processor.

The Intel Atom C3955 supports DDR4 memory, addresses up to 256 GB of memory, uses 2 memory channels and runs memory at up to 2,400 MT/s. It does not support DDR5 and LPDDR memory.

The Intel Atom C3955 uses the FCBGA1310 socket, supports PCI Express 3.0 and provides up to 16 PCIe lanes.

The Intel Atom C3955 has a rated TDP of 32 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Atom C3955 is manufactured by Intel. It launched at a price of $520.

The Intel Atom C3955 is also identified by the model number C3955.

After an audit, 1 value was corrected on the Intel Atom C3955 record. Each change is listed with its old value, new value, rule and sources.

• PCIe revision: 3 → 3.0. Rule: Cleanup pcie int to decimal. normalize to the dominant "N.0" format.

The audit log is public: all changes for this CPU, the corrections overview and the method.

Feex has recorded 38% of the specifications it tracks for the Intel Atom C3955. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L1 Cache (Total), L2 Cache (Total), L2 Cache (per Core) and L4 Cache. Memory Support: Memory Bandwidth and ECC Memory. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number. Performance: single-core and multi-core ratings and all computed performance metrics.

Processors close to the Intel Atom C3955 in the Feex database, matched by socket, family, segment, architecture, core count, TDP and benchmark scores, include Intel Atom C3950, Intel Atom C3808, Intel Atom C3858, Intel Atom C3850 and Intel Atom C3830.