Feex·CPU
Intel · Atom Z · Laptop

Intel® Atom™ Z520

The Intel Atom Z520 is a laptop processor released on April 2, 2008. It has 1 core and 2 threads, a base clock of 1.33 GHz, a 2 W TDP and the FCBGA441 socket.

Cores
1
Threads
2
Base Clock
1.33 GHz
Socket
FCBGA441
TDP
2 W
Multi-Core Performance
122
Single-Core Performance
151
Core layout
P
1 Performance 2 Threads

Overview

The Intel Atom Z520 is a laptop processor with 1 cores and 2 threads. It launched in Apr 2008. It uses the FCBGA441 socket. Rated TDP is 2 W.

Performance

Overall CPU Performance computed
136
1% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
122
0% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
151
3% of reference
Reference ceiling 5,500
Productivity Performance computed
291
0% of reference
Reference ceiling 160,000
Creator Performance computed
339
0% of reference
Reference ceiling 140,000
Engineering Performance computed
112
0% of reference
Reference ceiling 200,000
Gaming Performance computed
484
2% of reference
Reference ceiling 22,000
Performance per Core computed
122
1% of reference
Reference ceiling 21,053
Performance per Thread computed
61
1% of reference
Reference ceiling 10,527
Performance per Watt computed
61
3% of reference
Reference ceiling 2,000
Efficiency Index computed
96
2% of reference
Reference ceiling 4,000
Performance index computed
2
Intel Core i5-12400 = 100

The Intel Atom Z520 scores 151 in single-core performance and 122 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 136 for overall performance, 291 for productivity performance, 339 for creator performance, 112 for engineering performance and 484 for gaming performance. Its multi-core throughput works out to 122 per core, 61 per thread and 61 per watt. Its computed efficiency index is 96. Its performance index is 2, so its overall performance is 98% 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
188
0% of reference
Reference ceiling 617,811
100% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
208
0% of reference
Reference ceiling 600,000
100% below the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
3,185
0% of reference
Reference ceiling 2,309,868
99% below the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
35
0% of reference
Reference ceiling 137,106
100% below the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
25
0% of reference
Reference ceiling 12,291
98% below the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
25
0% of reference
Reference ceiling 172,975
100% below the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Sort Performance
380
0% of reference
Reference ceiling 260,323
98% below the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Atom Z520 scores 188 in integer math, 208 in floating-point math, 3,185 in compression, 35 in cryptography, 25 in physics simulation, 25 in vector SIMD and 380 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 100% below in integer math, 100% below in floating-point math, 99% below in compression, 100% below in cryptography, 98% below in physics simulation, 100% below in vector SIMD and 98% 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
1
Threads
2
Performance Cores
1
Threads per Core
2
Hybrid Architecture
No
Base Clock
1.33 GHz
Boost Clock
Not recorded

The Intel Atom Z520 has 1 physical core and runs 2 logical threads. It does not use a hybrid performance and efficiency core layout. It runs 2 threads per core. It runs at a base clock of 1.33 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Atom Z
Segment
Laptop
Generation
Not recorded
Architecture
Not recorded
Process Node
Not recorded
Lithography
Not recorded
Release Date
Apr 2008

The Intel Atom Z520 is a laptop processor and belongs to the Intel Atom Z family. It launched in Apr 2008.

Platform & Compatibility

Socket
FCBGA441
PCIe Generation
Not recorded

The Intel Atom Z520 uses the FCBGA441 socket.

Power & Thermals

TDP
2 W

The Intel Atom Z520 has a rated TDP of 2 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

5 supported
Supported
SSESSE2SSE3SSSE3MMX
Not recorded
AES-NIAMXAVX-512AVX2AVXAVX-VNNI

Security and Reliability

0 supported
Not recorded
AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Boot GuardHardware RNGHardware Shield

Virtualization

0 supported
Not recorded
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)VT-x with EPTIOMMUSecond-Level Address Translation

The Intel Atom Z520 supports SSE, SSE2, SSE3, SSSE3 and MMX among its instruction set features. Feex has no record for AES-NI, AMX, AVX-512, AVX2, AVX and AVX-VNNI, which is different from being unsupported.

Feex has no record for AES-NI, Control-flow Enforcement (CET), Execute Disable (NX), Boot Guard, Hardware RNG and Hardware Shield, which is different from being unsupported.

Feex has no record for Extended Page Tables (EPT), VT-d (DMA Remapping), VT-x (Hardware Virtualization), VT-x with EPT, IOMMU and Second-Level Address Translation, which is different from being unsupported.

Physical & Manufacturing

Launch Price
$65

The Intel Atom Z520 is manufactured by Intel. It launched at a price of $65.

Naming & Aliases

Display Name
Intel® Atom™ Z520
Normalized Name
Intel® Atom™ Z520
Product line brand
Atom

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Atom Z520 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 35% of the specifications it tracks for the Intel Atom Z520. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L1 Cache (Total), L2 Cache (Total), L2 Cache (per Core), L3 Cache, L4 Cache and Cache per Core. Memory Support: Max Memory, Memory Channels, Memory Bandwidth, Memory Types, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. 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: SKU, Model Number, Processor Number and Part Number.

Common questions

How many cores and threads does the Intel Atom Z520 have?

The Intel Atom Z520 has 1 cores and 2 threads.

What socket does the Intel Atom Z520 use?

The Intel Atom Z520 uses the FCBGA441 socket.

What is the TDP of the Intel Atom Z520?

The Intel Atom Z520 has a TDP of 2 W.

How does the Intel Atom Z520 perform?

In the Feex normalized performance dataset, the Intel Atom Z520 scores 122 multi-core and 151 single-core.

How does the Intel Atom Z520 compare with the Intel Core i5-12400?

The Intel Atom Z520 has a computed performance index of 2, which is 98% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.