Atom x5-Z8550

Details and Benchmarks for Intel Atom x5-Z8550

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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%

View full ranking →

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%

View full ranking →

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.
Frequently Compared

AMD Ryzen 9 PRO 3900 3 views

AMD Ryzen 5 3500X 3 views

AMD Phenom II X2 555 3 views

Intel Core i3-8145U 3 views

AMD Ryzen 7 2700 3 views

Intel Core i3-4030U 2 views

AMD A6-3620 2 views

Intel Celeron G530 2 views

AMD A6-5400K 2 views

AMD Athlon II X2 270 2 views

Intel Atom x5-Z8550

Main Specifications

Designer: Intel
Name: Atom x5-Z8550
Model Number: x5-Z8550
Cores: 4
Threads: 4
Base Frequency: 1440 MHz
Socket: UTFCBGA1380
Max CPUs: 1
TDP: 17 W

Cache Specifications

Memory Specifications

Supported Memory Type: LPDDR3 1600
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 2
PCIe Configuration: 2x1, 1x2

Integrated Graphics

GPU: HD Graphics 400
GPU Designer: Intel
GPU Max Frequency: 600.00 MHz

Physical Specifications

Process: 14 nm
Word Size: 64-bit

CPU Features

SSE4.1 SSE4.2 AVX2 AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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