Feex·CPU
Intel · Atom C · Server

Intel® Atom™ C3338

The Intel Atom C3338 is a server processor released on January 1, 2017, built on the Denverton architecture using a 14 nm process. It has 2 cores and 2 threads, a base clock of 1.50 GHz, a maximum boost of 2.20 GHz, 4 MB of L3 cache, a 9 W TDP and the FCBGA1310 socket.

Cores
2
Threads
2
Boost Clock
2.2 GHz
Base Clock
1.5 GHz
Architecture
Denverton
Socket
FCBGA1310
TDP
8.5 W
L3 Cache
4 MB
Core layout
PP
2 Performance 2 Threads
Notable capabilities:Extended Page Tables (EPT)

Best for

Server / professional infrastructure

Overview

The Intel Atom C3338 is a server processor with 2 cores and 2 threads, built on the Denverton architecture. It launched in Jan 2017. Clocks run from 1.5 GHz base to 2.2 GHz boost. A 4-MB L3 cache backs the cores (2.0 MB per core). It addresses DDR4 memory up to 128 GB across 1 channels. The chip drops into the FCBGA1310 socket and exposes PCIe 3.0 (10 lanes). Rated TDP is 8.5 W. Notable platform capabilities: Extended Page Tables (EPT).

Performance

Overall CPU Performance computed
910
4% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
1,028
1% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
806
15% of reference
Reference ceiling 5,500
Productivity Performance computed
1,797
1% of reference
Reference ceiling 160,000
Creator Performance computed
2,016
1% of reference
Reference ceiling 140,000
Engineering Performance computed
957
0% of reference
Reference ceiling 200,000
Gaming Performance computed
2,675
12% of reference
Reference ceiling 22,000
Performance per Core computed
514
2% of reference
Reference ceiling 21,053
Performance per Thread computed
514
5% of reference
Reference ceiling 10,527
Performance per Watt computed
121
6% of reference
Reference ceiling 2,000
Efficiency Index computed
312
8% of reference
Reference ceiling 4,000
Performance index computed
11
Intel Core i5-12400 = 100

The Intel Atom C3338 scores 806 in single-core performance and 1,028 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 910 for overall performance, 1,797 for productivity performance, 2,016 for creator performance, 957 for engineering performance and 2,675 for gaming performance. Its multi-core throughput works out to 514 per core, 514 per thread and 121 per watt. Its computed efficiency index is 312. Its performance index is 11, so its overall performance is 89% 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.

How these scores are computed

Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.

  • Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
  • Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
  • Creator performance is 0.55 times multi-core plus 1.8 times single-core.
  • Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
  • Gaming performance is 3 times single-core plus 0.25 times multi-core.
  • Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
  • The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
  • The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.

Workload Benchmarks

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.

Integer Math Throughput
4,731
1% of reference
Reference ceiling 617,811
92% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
1,329
0% of reference
Reference ceiling 600,000
97% below the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
15,114
1% of reference
Reference ceiling 2,309,868
93% below the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
669
0% of reference
Reference ceiling 137,106
94% below the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
97
1% of reference
Reference ceiling 12,291
91% below the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
345
0% of reference
Reference ceiling 172,975
98% below the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
5
0% of reference
Reference ceiling 1,067
93% below the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
2,104
1% of reference
Reference ceiling 260,323
91% below the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Atom C3338 scores 4,731 in integer math, 1,329 in floating-point math, 15,114 in compression, 669 in cryptography, 97 in physics simulation, 345 in vector SIMD, 5 in the prime sieve and 2,104 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 92% below in integer math, 97% below in floating-point math, 93% below in compression, 94% below in cryptography, 91% below in physics simulation, 98% below in vector SIMD, 93% below in the prime sieve and 91% 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.

Core Configuration

Cores
2
Threads
2
Threads per Core
1
Base Clock
1.5 GHz
Boost Clock
2.2 GHz

The Intel Atom C3338 has 2 physical cores and runs 2 logical threads. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 1.50 GHz and boosts up to 2.20 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
Jan 2017

The Intel Atom C3338 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 Jan 2017.

Cache

L3 Cache
4 MB
Cache per Core
2 MB
Total Cache
4 MB

The Intel Atom C3338 has 4 MB of L3 cache. That adds up to about 4.0 MB of cache, or 2.00 MB per core. Feex has no recorded L1 cache size for this processor.

Memory Support

Max Memory
128 GB
Memory Channels
1
Memory Types
DDR4
DDR5 Support
No
DDR4 Support
Yes
LPDDR Support
No
Max Memory Speed
1,866

The Intel Atom C3338 supports DDR4 memory, addresses up to 128 GB of memory, uses 1 memory channel and runs memory at up to 1,866 MT/s. It does not support DDR5 and LPDDR memory.

Platform & Compatibility

Socket
FCBGA1310
PCIe Generation
3.0
PCIe Lanes
10

The Intel Atom C3338 uses the FCBGA1310 socket, supports PCI Express 3.0 and provides up to 10 PCIe lanes.

Power & Thermals

TDP
8.5 W

The Intel Atom C3338 has a rated TDP of 9 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 C3338 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 C3338 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
$41

The Intel Atom C3338 is manufactured by Intel. It launched at a price of $41.

Naming & Aliases

Display Name
Intel® Atom™ C3338
Model Number
C3338
Product line brand
Atom

The Intel Atom C3338 is also identified by the model number C3338.

Corrections to this record

After an audit, 1 value was corrected on the Intel Atom C3338 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 C3338 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 53% of the specifications it tracks for the Intel Atom C3338. 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.

Common questions

How many cores and threads does the Intel Atom C3338 have?

The Intel Atom C3338 has 2 cores and 2 threads.

What architecture does the Intel Atom C3338 use?

The Intel Atom C3338 is built on the Denverton architecture.

What socket does the Intel Atom C3338 use?

The Intel Atom C3338 uses the FCBGA1310 socket.

What memory does the Intel Atom C3338 support?

The Intel Atom C3338 supports DDR4 up to 128 GB across 1 channels.

How fast does the Intel Atom C3338 run?

The Intel Atom C3338 can boost up to 2.2 GHz, with a 1.5 GHz base clock.

What is the TDP of the Intel Atom C3338?

The Intel Atom C3338 has a TDP of 8.5 W.

How does the Intel Atom C3338 perform?

In the Feex normalized performance dataset, the Intel Atom C3338 scores 1,028 multi-core and 806 single-core.

What advanced capabilities does the Intel Atom C3338 support?

Notable platform capabilities reported for the Intel Atom C3338 include Extended Page Tables (EPT).

What is the Intel Atom C3338 best for?

Based on its specifications, the Intel Atom C3338 is well suited for Server / professional infrastructure.

How much cache does the Intel Atom C3338 have?

The Intel Atom C3338 has 4 MB of L3 cache.

How does the Intel Atom C3338 compare with the Intel Core i5-12400?

The Intel Atom C3338 has a computed performance index of 11, which is 89% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.

Which features does the Intel Atom C3338 not support?

The Intel Atom C3338 does not support Boot Guard.