Intel Atom Z515 vs Intel Atom Z550

Comparative analysis of Intel Atom Z515 and Intel Atom Z550 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.

Intel Atom Z515

Intel Atom Z550

Differences

Reasons to consider the Intel Atom Z515

2x lower typical power consumption: 1.4 Watt vs 2.4 Watt

Thermal Design Power (TDP)	1.4 Watt vs 2.4 Watt

Reasons to consider the Intel Atom Z550

Around 67% higher clock speed: 2 GHz vs 1.2 GHz
Around 75% better performance in PassMark - CPU mark: 381 vs 218

Specifications (specs)
Maximum frequency	2 GHz vs 1.2 GHz
Benchmarks
PassMark - CPU mark	381 vs 218

Compare benchmarks

CPU 1: Intel Atom Z515
CPU 2: Intel Atom Z550

PassMark - CPU mark

CPU 1

CPU 2

218

381

Name	Intel Atom Z515	Intel Atom Z550
PassMark - Single thread mark	0	0
PassMark - CPU mark	218	381

Compare specifications (specs)

	Intel Atom Z515	Intel Atom Z550
Essentials
Architecture codename	Silverthorne	Silverthorne
Launch date	April 2009	April 2009
Place in performance rating	3342	3343
Processor Number	Z515	Z550
Series	Legacy Intel Atom® Processors	Legacy Intel Atom® Processors
Status	Discontinued	Discontinued
Vertical segment	Mobile	Mobile
Performance
Base frequency	1.20 GHz	2.00 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	2 GHz
Number of cores	1	1
Transistor count	47 million	47 million
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
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 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)