Intel® Atom™ C3538

The Intel Atom C3538 is a server processor with 4 cores and 4 threads, built on the Denverton architecture. It launched in Jul 2017. Clocks run from 2.1 GHz base to 2.1 GHz boost. A 8-MB L3 cache backs the cores (3.0 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 (12 lanes). Rated TDP is 15 W. Notable platform capabilities: Extended Page Tables (EPT).

The Intel Atom C3538 scores 747 in single-core performance and 1,910 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 1,194 for overall performance, 2,287 for productivity performance, 2,395 for creator performance, 1,838 for engineering performance and 2,719 for gaming performance. Its multi-core throughput works out to 478 per core, 478 per thread and 127 per watt. Its computed efficiency index is 308. Its performance index is 15, so its overall performance is 85% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Atom C3538 scores 9,544 in integer math, 2,595 in floating-point math, 31,288 in compression, 1,213 in cryptography, 180 in physics simulation, 690 in vector SIMD, 9 in the prime sieve and 4,477 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 84% below in integer math, 94% below in floating-point math, 86% below in compression, 89% below in cryptography, 83% below in physics simulation, 96% below in vector SIMD, 87% below in the prime sieve and 80% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Atom C3538 has 4 physical cores and runs 4 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 2.10 GHz.

The Intel Atom C3538 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 C3538 has 112 KB of L1 cache, 4 MB of L2 cache and 8 MB of L3 cache. That adds up to about 12.1 MB of cache, or 3.03 MB per core.

The Intel Atom C3538 has a 3-level cache hierarchy: L1 at 112 KB, L2 at 4 MB and L3 at 8 MB. L3 is the largest level and makes up about 66% of the cache listed here.

The Intel Atom C3538 supports DDR4 memory, addresses up to 256 GB of memory, uses 2 memory channels and runs memory at up to 2,133 MT/s. It does not support DDR5 and LPDDR memory.

The Intel Atom C3538 uses the FCBGA1310 socket, supports PCI Express 3.0 and provides up to 12 PCIe lanes.

The Intel Atom C3538 has a rated TDP of 15 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 C3538 is manufactured by Intel. It launched at a price of $86.

The Intel Atom C3538 is also identified by the model number C3538.

After an audit, 1 value was corrected on the Intel Atom C3538 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 55% of the specifications it tracks for the Intel Atom C3538. 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: 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.

Processors that use the same FCBGA1310 socket as the Intel Atom C3538 and have the closest multi-core scores in the Feex database include Intel Atom C3508, Intel Atom C3558, Intel Atom C3338, Intel Atom C3708 and Intel Atom C3958.