Intel Atom Z515 vs Intel Atom Z540

Comparative analysis of Intel Atom Z515 and Intel Atom Z540 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

 

Differences

Reasons to consider the Intel Atom Z515

  • CPU is newer: launch date 1 year(s) 0 month(s) later
  • 2x lower typical power consumption: 1.4 Watt vs 2.4 Watt
Launch date April 2009 vs April 2008
Thermal Design Power (TDP) 1.4 Watt vs 2.4 Watt

Reasons to consider the Intel Atom Z540

  • Around 55% higher clock speed: 1.86 GHz vs 1.2 GHz
  • Around 60% better performance in PassMark - CPU mark: 348 vs 218
Specifications (specs)
Maximum frequency 1.86 GHz vs 1.2 GHz
Benchmarks
PassMark - CPU mark 348 vs 218

Compare benchmarks

CPU 1: Intel Atom Z515
CPU 2: Intel Atom Z540

PassMark - CPU mark
CPU 1
CPU 2
218
348
Name Intel Atom Z515 Intel Atom Z540
PassMark - Single thread mark 0 0
PassMark - CPU mark 218 348

Compare specifications (specs)

Intel Atom Z515 Intel Atom Z540

Essentials

Architecture codename Silverthorne Silverthorne
Launch date April 2009 April 2008
Place in performance rating 3336 3339
Processor Number Z515 Z540
Series Legacy Intel Atom® Processors Legacy Intel Atom® Processors
Status Discontinued Discontinued
Vertical segment Mobile Mobile

Performance

Base frequency 1.20 GHz 1.86 GHz
Bus Speed 400 MHz FSB 533 MHz FSB
Die size 26 mm2 26 mm2
L1 cache 64 KB (per core) 64 KB (per core)
L2 cache 512 KB (per core) 512 KB (per core)
Manufacturing process technology 45 nm 45 nm
Maximum core temperature 90°C 90°C
Maximum frequency 1.2 GHz 1.86 GHz
Number of cores 1 1
Transistor count 47 million 47 million
VID voltage range 0.75 -1.1V

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 1
Package Size 13mm x 14mm 13mm x 14mm
Sockets supported PBGA441 PBGA441
Thermal Design Power (TDP) 1.4 Watt 2.4 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
FSB parity
Idle States
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

Virtualization

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

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