Intel Atom N455 vs Intel Atom Z520

Comparative analysis of Intel Atom N455 and Intel Atom Z520 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

 

Differences

Reasons to consider the Intel Atom N455

  • CPU is newer: launch date 2 year(s) 0 month(s) later
  • Around 25% higher clock speed: 1.66 GHz vs 1.33 GHz
  • Around 11% higher maximum core temperature: 100°C vs 90°C
  • Around 77% better performance in PassMark - Single thread mark: 268 vs 151
  • Around 61% better performance in PassMark - CPU mark: 196 vs 122
Specifications (specs)
Launch date 1 May 2010 vs April 2008
Maximum frequency 1.66 GHz vs 1.33 GHz
Maximum core temperature 100°C vs 90°C
Benchmarks
PassMark - Single thread mark 268 vs 151
PassMark - CPU mark 196 vs 122

Reasons to consider the Intel Atom Z520

  • 3.5x lower typical power consumption: 2 Watt vs 6.5 Watt
Thermal Design Power (TDP) 2 Watt vs 6.5 Watt

Compare benchmarks

CPU 1: Intel Atom N455
CPU 2: Intel Atom Z520

PassMark - Single thread mark
CPU 1
CPU 2
268
151
PassMark - CPU mark
CPU 1
CPU 2
196
122
Name Intel Atom N455 Intel Atom Z520
PassMark - Single thread mark 268 151
PassMark - CPU mark 196 122
Geekbench 4 - Single Core 62
Geekbench 4 - Multi-Core 94

Compare specifications (specs)

Intel Atom N455 Intel Atom Z520

Essentials

Architecture codename Pineview Silverthorne
Launch date 1 May 2010 April 2008
Launch price (MSRP) $64
Place in performance rating 3301 3306
Processor Number N455 Z520
Series Legacy Intel Atom® Processors Legacy Intel Atom® Processors
Status Discontinued Discontinued
Vertical segment Mobile Mobile

Performance

64 bit support
Base frequency 1.66 GHz 1.33 GHz
Bus Speed 2.5 GT/s DMI 533 MHz FSB
Die size 66 mm2 26 mm2
Front-side bus (FSB) 533 MHz
L1 cache 64 KB (per core) 64 KB (per core)
L2 cache 512 KB 512 KB (per core)
Manufacturing process technology 45 nm 45 nm
Maximum core temperature 100°C 90°C
Maximum frequency 1.66 GHz 1.33 GHz
Number of cores 1 1
Number of threads 2
Transistor count 123 million 47 million
VID voltage range 0.75-1.1V

Memory

Max memory channels 1
Maximum memory size 2 GB
Supported memory types DDR2/3

Graphics

Graphics base frequency 200 MHz
Processor graphics Integrated

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 1
Package Size 22mm x 22mm 13mm x 14mm
Sockets supported FCBGA559 PBGA441
Thermal Design Power (TDP) 6.5 Watt 2 Watt
Scenario Design Power (SDP) 0.96 W

Security & Reliability

Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)

Advanced Technologies

Enhanced Intel SpeedStep® technology
Instruction set extensions Intel® SSE2, Intel® SSE3, Intel® SSSE3 Intel® SSE2, Intel® SSE3, Intel® SSSE3
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
FSB parity
Idle States

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)

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