Feex·CPU
Intel · Atom C · Server

Intel® Atom™ C3850

The Intel Atom C3850 is a server processor released on July 1, 2017, built on the Denverton architecture using a 14 nm process. It has 12 cores and 12 threads, a base clock of 2.10 GHz, a maximum boost of 2.40 GHz, 12 MB of L3 cache, a 25 W TDP and the FCBGA1310 socket.

Cores
12
Threads
12
Boost Clock
2.4 GHz
Base Clock
2.1 GHz
Architecture
Denverton
Socket
FCBGA1310
TDP
25 W
L3 Cache
12 MB
Core layout
PPPPPPPPPPPP
12 Performance 12 Threads
Notable capabilities:Extended Page Tables (EPT)

Best for

Server / professional infrastructure

Overview

The Intel Atom C3850 is a server processor with 12 cores and 12 threads, built on the Denverton architecture. It launched in Jul 2017. Clocks run from 2.1 GHz base to 2.4 GHz boost. A 12-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 25 W. Notable platform capabilities: Extended Page Tables (EPT).

Core Configuration

Cores
12
Threads
12
Threads per Core
1
Base Clock
2.1 GHz
Boost Clock
2.4 GHz

The Intel Atom C3850 has 12 physical cores and runs 12 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.

Architecture & Generation

Manufacturer
Intel
Family
Atom C
Segment
Server
Generation
Intel Atom Processor C Series
Architecture
Denverton
Codename
Denverton
Lithography
14 nm
Release Date
Jul 2017

The Intel Atom C3850 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.

Cache

L3 Cache
12 MB
Cache per Core
1 MB
Total Cache
12 MB

The Intel Atom C3850 has 12 MB of L3 cache. That adds up to about 12.0 MB of cache, or 1.00 MB per core. Feex has no recorded L1 cache size for this processor.

Memory Support

Max Memory
256 GB
Memory Channels
2
Memory Types
DDR4
DDR5 Support
No
DDR4 Support
Yes
LPDDR Support
No
Max Memory Speed
2,400

The Intel Atom C3850 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.

Platform & Compatibility

Socket
FCBGA1310
PCIe Generation
3.0
PCIe Lanes
16

The Intel Atom C3850 uses the FCBGA1310 socket, supports PCI Express 3.0 and provides up to 16 PCIe lanes.

Power & Thermals

TDP
25 W

The Intel Atom C3850 has a rated TDP of 25 W.

Platform Capabilities

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.

Instruction Sets

0 supported
Not recorded
AES-NIAMXAVX-512AVX2AVXAVX-VNNI

Security and Reliability

2 supported
Supported
Hardware RNGOS Guard
Not supported
Boot Guard
Not recorded
AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Hardware ShieldOS Guard (SMAP)SGX

Virtualization

3 supported
Supported
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
Not recorded
VT-x with EPTIOMMUSecond-Level Address TranslationUnrestricted Guest

Feex has no record for AES-NI, AMX, AVX-512, AVX2, AVX and AVX-VNNI, which is different from being unsupported.

The Intel Atom C3850 supports Hardware RNG and OS Guard among its security features. It does not support Boot Guard. Feex has no record for AES-NI, Control-flow Enforcement (CET), Execute Disable (NX), Hardware Shield, OS Guard (SMAP) and SGX, which is different from being unsupported.

The Intel Atom C3850 supports Extended Page Tables (EPT), VT-d (DMA Remapping) and VT-x (Hardware Virtualization) among its virtualization features. Feex has no record for VT-x with EPT, IOMMU, Second-Level Address Translation and Unrestricted Guest, which is different from being unsupported.

Physical & Manufacturing

Launch Price
$388

The Intel Atom C3850 is manufactured by Intel. It launched at a price of $388.

Naming & Aliases

Display Name
Intel® Atom™ C3850
Model Number
C3850
Product line brand
Atom

The Intel Atom C3850 is also identified by the model number C3850.

Corrections to this record

After an audit, 1 value was corrected on the Intel Atom C3850 record. Each change is listed with its old value, new value, rule and sources.

  • PCIe revision: 3 → 3.0.

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

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Atom C3850 have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 38% of the specifications it tracks for the Intel Atom C3850. 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.

Common questions

How many cores and threads does the Intel Atom C3850 have?

The Intel Atom C3850 has 12 cores and 12 threads.

What architecture does the Intel Atom C3850 use?

The Intel Atom C3850 is built on the Denverton architecture.

What socket does the Intel Atom C3850 use?

The Intel Atom C3850 uses the FCBGA1310 socket.

What memory does the Intel Atom C3850 support?

The Intel Atom C3850 supports DDR4 up to 256 GB across 2 channels.

How fast does the Intel Atom C3850 run?

The Intel Atom C3850 can boost up to 2.4 GHz, with a 2.1 GHz base clock.

What is the TDP of the Intel Atom C3850?

The Intel Atom C3850 has a TDP of 25 W.

What advanced capabilities does the Intel Atom C3850 support?

Notable platform capabilities reported for the Intel Atom C3850 include Extended Page Tables (EPT).

What is the Intel Atom C3850 best for?

Based on its specifications, the Intel Atom C3850 is well suited for Server / professional infrastructure.

How much cache does the Intel Atom C3850 have?

The Intel Atom C3850 has 12 MB of L3 cache.

Which features does the Intel Atom C3850 not support?

The Intel Atom C3850 does not support Boot Guard.