Atom x5-Z8550 Benchmarks & Performance Report

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

3,942 Rank: 1932

Rank	Name	Score	Visual
1928	Celeron 807	3,952	+0.3%
1929	Phenom X3 8450	3,950	+0.2%
1930	Core i3-2365M	3,944	+0.1%
1931	Sempron 3850	3,943	+0%
1932	Atom x5-Z8550	3,942
1933	Intel Celeron P4500	3,941	+-0%
1934	E2-2000	3,940	-0.1%
1935	Celeron N2830	3,939	-0.1%
1936	Pentium SU2700	3,939	-0.1%
1937	A4-4355M	3,938	-0.1%

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Multicore Score

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

4,334 Rank: 1630

Rank	Name	Score	Visual
1626	Core i3-5010U	4,335	+0%
1627	Phenom II X2 545	4,335	+0%
1628	Pentium E6700	4,334	+0%
1629	Pentium E6500	4,334	+0%
1630	Atom x5-Z8550	4,334
1631	Pentium 2030M	4,334	+0%
1632	Athlon 5350	4,334	+0%
1633	A10-5745M	4,333	+-0%
1634	A10-4655M	4,333	+-0%
1635	A4-7210	4,333	+-0%

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Singlecore Score

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

3,680 Rank: 1953

Rank	Name	Score	Visual
1949	Athlon X2 4850e	3,686	+0.2%
1950	Athlon 64 X2 3600+	3,686	+0.2%
1951	A4-5000	3,684	+0.1%
1952	Athlon LE-1640	3,684	+0.1%
1953	Atom x5-Z8550	3,680
1954	A6-5200	3,673	-0.2%
1955	E2-1800	3,664	-0.4%
1956	E1-2500	3,663	-0.5%
1957	Celeron 847	3,661	-0.5%
1958	Phenom X4 9600	3,660	-0.5%

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

4,484 Rank: 1644

Rank	Name	Score	Visual
1640	Core i3-2365M	4,484	+0%
1641	Celeron J3355	4,484	+0%
1642	Pentium E5200	4,484	+0%
1643	Celeron E3200	4,484	+0%
1644	Atom x5-Z8550	4,484
1645	Celeron N3160	4,484	+0%
1646	Celeron E3500	4,484	+0%
1647	Phenom X3 8550	4,484	+0%
1648	Celeron B820	4,483	+-0%
1649	Atom C3338	4,483	+-0%

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Data Processing

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

4,477 Rank: 1476

Rank	Name	Score	Visual
1472	Pentium G2010	4,477	+0%
1473	Athlon II X2 270	4,477	+0%
1474	Core i3-4030U	4,477	+0%
1475	A8-4500M	4,477	+0%
1476	Atom x5-Z8550	4,477
1477	Pentium N3700	4,476	+-0%
1478	Core i3-2348M	4,476	+-0%
1479	Pentium G645	4,476	+-0%
1480	Celeron G1620	4,476	+-0%
1481	Athlon II X2 265	4,476	+-0%

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Physics & Compute

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

4,471 Rank: 1593

Rank	Name	Score	Visual
1589	A6-9220	4,471	+0%
1590	Pentium N3540	4,471	+0%
1591	A4-6210	4,471	+0%
1592	Celeron 1017U	4,471	+0%
1593	Atom x5-Z8550	4,471
1594	Celeron N3160	4,471	+0%
1595	Celeron 2955U	4,471	+0%
1596	A6-5357M	4,471	+0%
1597	Pentium N3700	4,470	+-0%
1598	Celeron J4005	4,470	+-0%

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Atom x5-Z8550 Details

Built on Intel's Atom architecture at a 14 nm process, the Atom x5-Z8550 represents a generation of low-power, cost-effective processors designed for entry-level mobile devices and compact systems. Released in the early 2010s, this CPU is now considered outdated by modern standards, particularly as of 2026, when high-end processors routinely exceed 10,000 in multicore performance. Despite its age, the x5-Z8550 retains relevance in niche applications where power efficiency and thermal constraints outweigh raw computational needs.

The processor features four cores and four threads, operating at a base frequency of 1.44 GHz with a turbo boost up to 2.3 GHz. It supports LPDDR3 1600 memory across two channels, enabling a maximum memory bandwidth of 25.6 GB/s and a total memory capacity of 8 GB. Integrated into the design is Intel’s HD Graphics 400 GPU, which runs at a base frequency of 200 MHz and can burst up to 600 MHz. This GPU supports up to three displays and is suitable for basic multimedia tasks and light graphical workloads.

With a 17 W TDP and a UTFCBGA1380 socket, the Atom x5-Z8550 is optimized for fanless or low-noise systems, such as tablets, mini PCs, and embedded devices. It supports a range of Intel-specific technologies including AES-NI, AVX2, SSE4.1/4.2, and Hyper-Threading, along with virtualization features like VT-x and VT-d. The inclusion of EIST and TXT enhances power management and security, making it a viable choice for enterprise thin clients and lightweight workstations.

In benchmark testing, the Atom x5-Z8550 achieves an overall score of 3,942, placing it at #1,932 out of 2,060 processors in the Passmark database. Its single-core performance is rated at 3,680, ranking #1,953, while its multicore score of 4,334 lands it at #1,628. These results indicate that while the CPU performs reasonably in single-threaded workloads, its multicore capabilities are more competitive relative to its peers. It falls behind modern processors by a wide margin—top-tier CPUs like the Ryzen Threadripper PRO 9995WX score over 9,000 overall, highlighting the x5-Z8550’s limitations in today’s computing landscape.

The processor competes with older Intel Celeron and AMD A-Series chips, often outperforming them in single-core performance due to its higher clock speeds and modern microarchitecture. However, it lags behind in memory bandwidth and cache efficiency, with an L1 cache of 128 KB per core and no shared L3 cache. This architecture, while efficient for its time, limits scalability and performance in modern multitasking environments.

As of March 2026, the Atom x5-Z8550 is best suited for legacy systems, low-power embedded applications, or as a secondary processor in systems where cost, thermal output, and power consumption are prioritized over performance. While it remains functional for basic web browsing, office tasks, and media playback, it is not recommended for demanding applications such as video editing, gaming, or software development.