Atom C3558

Details and Benchmarks for Intel Atom C3558

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Atom C3558 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,237 Rank: 1616
Rank Name Score Visual
1612 Athlon II X2 B24 4,241
+0.1%
1613 Athlon II X2 250 4,240
+0.1%
1614 Athlon II X2 215 4,239
+0%
1615 Celeron 4205U 4,239
+0%
1616 Atom C3558 4,237
1617 Core i5-460M 4,237
+0%
1618 Celeron N4000 4,234
-0.1%
1619 Athlon II X4 630 4,234
-0.1%
1620 Phenom II X3 710 4,234
-0.1%
1621 Core 2 Quad Q9400 4,233
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Atom C3558 based on multi-threaded benchmark results.

4,524 Rank: 1187
Rank Name Score Visual
1183 Core i5-5257U 4,526
+0%
1184 Xeon E3-1225 4,526
+0%
1185 Core i5-5287U 4,525
+0%
1186 Celeron 807UE 4,524
+0%
1187 Atom C3558 4,524
1188 A10-6790K 4,524
+0%
1189 Core m7-6Y75 4,523
+-0%
1190 Core i3-3250 4,523
+-0%
1191 Core i7-7500U 4,522
+-0%
1192 Xeon X3460 4,521
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Atom C3558 based on single-threaded benchmark results.

4,045 Rank: 1731
Rank Name Score Visual
1727 Core 2 Duo P7450 4,049
+0.1%
1728 A6-3650 4,047
+0%
1729 A6-9220 4,047
+0%
1730 Core 2 Duo T6500 4,047
+0%
1731 Atom C3558 4,045
1732 Core 2 Duo T7250 4,044
+-0%
1733 Phenom II N850 4,043
+-0%
1734 Core 2 Duo P9300 4,043
+-0%
1735 Phenom 9500 4,042
-0.1%
1736 Core i3-4012Y 4,042
-0.1%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Atom C3558 based on integer math, floating point math, and prime number computation benchmarks.

4,535 Rank: 1259
Rank Name Score Visual
1255 Core i5-3230M 4,536
+0%
1256 Core i7-4500U 4,536
+0%
1257 Phenom II X4 945 4,536
+0%
1258 Celeron G3950 4,535
+0%
1259 Atom C3558 4,535
1260 Phenom II X4 940 4,535
+0%
1261 Core i5-680 4,535
+0%
1262 Core i5-8210Y 4,535
+0%
1263 Athlon PRO 3045B 4,535
+0%
1264 Celeron G3920 4,534
+-0%

View full ranking →

Data Processing

Aggregated score for Atom C3558 based on data encryption, data compression, and string sorting benchmarks.

4,531 Rank: 1156
Rank Name Score Visual
1152 A8 PRO-7600B 4,532
+0%
1153 Pentium G4600T 4,531
+0%
1154 Core i7-6498DU 4,531
+0%
1155 Core i3-7167U 4,531
+0%
1156 Atom C3558 4,531
1157 Core i3-3250 4,531
+0%
1158 Core i7-3540M 4,531
+0%
1159 Pentium Silver N6000 4,531
+0%
1160 Celeron J4125 4,531
+0%
1161 Core i5-7200U 4,530
+-0%

View full ranking →

Physics & Compute

Aggregated score for Atom C3558 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,506 Rank: 1362
Rank Name Score Visual
1358 Core i5-661 4,507
+0%
1359 Core i5-660 4,507
+0%
1360 Celeron 4305U 4,507
+0%
1361 Core i3-2350M 4,506
+0%
1362 Atom C3558 4,506
1363 Phenom II X4 850 4,506
+0%
1364 Celeron G1850 4,506
+0%
1365 Phenom II X4 940 4,506
+0%
1366 Phenom II X4 925 4,506
+0%
1367 Phenom II X4 920 4,506
+0%

View full ranking →

Atom C3558 Details

As of March 2026, the Intel Atom C3558 remains a niche processor designed for embedded and low-power server environments, offering a unique blend of efficiency and integrated capabilities. Though released several years ago, it continues to serve in specialized applications where power consumption and compact form factors are prioritized over raw performance. Built on the 14 nm process and based on the Goldmont microarchitecture, the C3558 delivers modest computational throughput, reflecting its position in the broader CPU landscape.

The processor features four cores and four threads, operating at a base frequency of 2.2 GHz with no listed turbo boost, indicating a focus on steady, predictable performance rather than burst performance. Its cache hierarchy includes 0.125 MiB of L1 instruction cache, 0.0938 MiB of L1 data cache, and a shared 8 MiB L2 cache, supporting efficient data access for embedded workloads. The chip supports DDR3L-1600 and DDR4-1866 memory across two channels, with a maximum bandwidth of 27.82 GiB/s and a theoretical memory capacity of up to 262,144 MiB. It operates at a low 16 W TDP, making it suitable for fanless or passive cooling systems.

Despite its age, the Atom C3558 includes several enterprise-grade features, such as ECC memory support, Intel VT-x and VT-d virtualization, and Intel QuickAssist Technology (QAT), which accelerates encryption and compression tasks. It also supports AES-NI, X86-64, and other instruction sets that enhance security and compatibility. The processor is packaged in an FCBGA-1310 socket and supports PCIe 3.0 with up to 12 lanes, along with 12 SATA ports and 8 USB ports, enabling integration into compact storage and networking systems.

In benchmark evaluations, the Atom C3558 scores 4237 overall, placing it at #1616 out of 2060 processors, with a single-core score of 4045 (#1731) and a multicore score of 4524 (#1186). While these results indicate it lags behind modern mainstream and high-end CPUs, it competes closely with older embedded and low-power processors like the Core i5-5287U and Xeon E3-1225. Its multicore performance is relatively strong for its class, though it falls well short of the top-tier processors in the top 50 lists, which include high-end Ryzen and Core Ultra chips scoring over 8,000 points.

Given its specifications and performance, the Atom C3558 is best suited for light server workloads, edge computing, or network appliances where integrated features and low power draw outweigh raw performance. It remains a viable option in embedded systems requiring reliable operation over extended periods, though it is not competitive in general-purpose computing or high-performance environments.
Frequently Compared

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Intel Atom C3558

Main Specifications

Designer: Intel
Name: Atom C3558
Family: Atom
Series: 3000
Model Number: C3558
Cores: 4
Threads: 4
Base Frequency: 2200 MHz
Clock Multiplier: 22x (locked)
Microarchitecture: Goldmont
Core Name: Denverton
Core Family: 6
Core Model: 95
Package: FCBGA-1310
Target Segment: Embedded
Max CPUs: 1
TDP: 16 W
Release Price: $86.00

Cache Specifications

L1 Cache: 224.256 KiB
L1 Instruction Cache: 128 KiB (8-way set associative)
L1 Data Cache: 96.0512 KiB (6-way set associative)
L2 Cache: 8 MiB (16-way set associative)

Memory Specifications

Supported Memory Type: DDR3L-1600 and DDR4-1866
Memory Channels: 2
Maximum Memory: 256 GB
Maximum Bandwidth: 27.82 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 12
PCIe Configuration: x8, x4, x2, x1

Physical Specifications

Process: 14 nm
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AES RdRand x86-16 x86-32 x86-64 Real Protected SMM FPU NX EIST VT-x VT-d EPT MPX SHA QAT
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