Intel Atom Z500 vs Intel Atom Z520

Comparative analysis of Intel Atom Z500 and Intel Atom Z520 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 Z500

Intel Atom Z520

Differences

Reasons to consider the Intel Atom Z500

2x lower typical power consumption: 0.65 Watt vs 2 Watt

Thermal Design Power (TDP)	0.65 Watt vs 2 Watt

Compare benchmarks

CPU 1: Intel Atom Z500
CPU 2: Intel Atom Z520

Name	Intel Atom Z500	Intel Atom Z520
PassMark - Single thread mark		151
PassMark - CPU mark		122

Compare specifications (specs)

	Intel Atom Z500	Intel Atom Z520
Essentials
Architecture codename	Silverthorne	Silverthorne
Launch date	April 2008	April 2008
Place in performance rating	not rated	3316
Processor Number	Z500	Z520
Series	Legacy Intel Atom® Processors	Legacy Intel Atom® Processors
Status	Discontinued	Discontinued
Vertical segment	Mobile	Mobile
Performance
Base frequency	800 MHz	1.33 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	0 GHz	1.33 GHz
Number of cores	1	1
Transistor count	47 million	47 million
VID voltage range	0.80 -1.10V	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
Scenario Design Power (SDP)	0.96 W	0.96 W
Sockets supported	PBGA441	PBGA441
Thermal Design Power (TDP)	0.65 Watt	2 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® 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)