Intel Atom x5-Z8550

Details and Benchmarks for Intel Intel Atom x5-Z8550

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

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

Overall Score

Overall score for Intel Atom x5-Z8550 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

3,891 Rank: 1970
Rank Name Score Visual
1966 Atom x5-Z8350 3,894
+0.1%
1967 Celeron 867 3,893
+0.1%
1968 E1-2500 3,893
+0.1%
1969 Intel Pentium N3710 3,892
+0%
1970 Intel Atom x5-Z8550 3,891
1971 E2-1800 3,891
+0%
1972 Celeron 847 3,890
+-0%
1973 Phenom X4 9600 3,884
-0.2%
1974 Pentium N3530 3,883
-0.2%
1975 Pentium N3520 3,883
-0.2%

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Multicore Score

Multicore performance score for Intel Atom x5-Z8550 based on multi-threaded benchmark results.

4,351 Rank: 1578
Rank Name Score Visual
1574 A6-7310 4,352
+0%
1575 Core i5-560M 4,352
+0%
1576 Core i5-540M 4,352
+0%
1577 Celeron G4930T 4,351
+0%
1578 Intel Atom x5-Z8550 4,351
1579 A10-4600M 4,351
+0%
1580 A6-3420M 4,351
+0%
1581 Core i3-540 4,351
+0%
1582 A6-3600 4,351
+0%
1583 Phenom II X4 B45 4,350
+-0%

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Singlecore Score

Single-core performance score for Intel Atom x5-Z8550 based on single-threaded benchmark results.

3,584 Rank: 1983
Rank Name Score Visual
1979 Celeron N2940 3,588
+0.1%
1980 Celeron N3010 3,585
+0%
1981 Atom D525 3,585
+0%
1982 Intel Pentium N3710 3,584
+0%
1983 Intel Atom x5-Z8550 3,584
1984 Atom D425 3,584
+0%
1985 Celeron N3150 3,582
-0.1%
1986 Celeron N2930 3,578
-0.2%
1987 E-300 3,578
-0.2%
1988 Athlon X2 QL-62 3,578
-0.2%

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Workload Scores

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

Number Crunching

Aggregated score for Intel Atom x5-Z8550 based on integer math, floating point math, and prime number computation benchmarks.

-- Rank: --

Number Crunching score not yet available.

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Data Processing

Aggregated score for Intel Atom x5-Z8550 based on data encryption, data compression, and string sorting benchmarks.

-- Rank: --

Data Processing score not yet available.

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Physics & Compute

Aggregated score for Intel Atom x5-Z8550 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

-- Rank: --

Physics & Compute score not yet available.

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Intel Atom x5-Z8550 Details

As of March 2026, the Intel Atom x5-Z8550 remains a niche processor designed for ultra-low-power mobile devices, particularly tablets and entry-level laptops. Built on Intel's Airmont microarchitecture at a 14 nm process, it was released in 2015 as part of the Cherry Trail platform, making it over a decade old by modern standards. Despite its age, the x5-Z8550 continues to serve in low-cost computing environments where power efficiency and thermal constraints take precedence over raw performance.

The processor features four cores and four threads, operating at a base frequency of 1.44 GHz with a turbo boost up to 2.4 GHz. It includes a 2 MiB L2 cache but lacks an L3 cache, and it supports up to 8 GB of DDR3L memory at 1333 MHz, with a maximum memory bandwidth of 10.66 GB/s. With a TDP of just 2 watts, the x5-Z8550 is optimized for passive cooling and long battery life, making it suitable for lightweight productivity and media consumption.

Integrated into the design is the HD Graphics 400 GPU, which supports up to 8 GB of shared system memory and can reach a maximum frequency of 600 MHz. This GPU enables basic 1080p video playback and light gaming, though it falls far short of modern integrated graphics solutions. The processor also supports key Intel technologies such as AES-NI, Enhanced SpeedStep, and Burst Performance Technology, which help improve performance and power management.

In benchmark testing, the x5-Z8550 achieves an overall score of 3891, placing it at #1970 out of 2060 processors. Its single-core score of 3584 ranks #1982, while its multicore score of 4351 lands at #1577. These results indicate that while the processor holds its own in single-threaded workloads compared to older mobile and desktop CPUs, its multicore performance is significantly outpaced by modern alternatives. The x5-Z8550 is competitive with low-end Atom and Celeron processors but lags behind even entry-level modern designs.

Given its position in the performance hierarchy, the Intel Atom x5-Z8550 is best suited for basic computing tasks such as web browsing, document editing, and media playback on compact devices. It is not ideal for multitasking, content creation, or performance-intensive applications. For users seeking modern performance, even mid-range processors from the last five years offer vastly superior capabilities. As of 2026, the x5-Z8550 remains a relic of early mobile computing, serving only in legacy systems or cost-sensitive markets.
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Intel Intel Atom x5-Z8550

Main Specifications

Designer: Intel
Name: Intel Atom x5-Z8550
Family: Atom
Series: Z8000
Model Number: x5-Z8550
Cores: 4
Threads: 4
Base Frequency: 1440 MHz
Turbo Frequency (1 core): 2400 MHz
Microarchitecture: Airmont
Core Name: Cherry
Target Segment: Mobile
Max CPUs: 1

Cache Specifications

L1 Instruction Cache: 128 KiB (8-way set associative)
L1 Data Cache: 96.0512 KiB (6-way set associative)
L2 Cache: 2 MiB (16-way set associative)
L3 Cache: 0 MiB (No)

Memory Specifications

Maximum Memory: 8 GB

Integrated Graphics

GPU: HD Graphics 400
GPU Max Frequency: 600 MHz

Physical Specifications

Process: 14 nm
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSSE3 AES NX EIST BPT
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