Intel Atom Z670 vs Intel Atom Z520

Comparative analysis of Intel Atom Z670 and Intel Atom Z520 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Atom Z670

Intel Atom Z520

Differences

Reasons to consider the Intel Atom Z670

CPU is newer: launch date 3 year(s) 0 month(s) later
Around 13% higher clock speed: 1.5 GHz vs 1.33 GHz
Around 30% better performance in PassMark - CPU mark: 158 vs 122

Specifications (specs)
Launch date	April 2011 vs April 2008
Maximum frequency	1.5 GHz vs 1.33 GHz
Benchmarks
PassMark - CPU mark	158 vs 122

Reasons to consider the Intel Atom Z520

Around 50% lower typical power consumption: 2 Watt vs 3 Watt
Around 59% better performance in PassMark - Single thread mark: 151 vs 95

Specifications (specs)
Thermal Design Power (TDP)	2 Watt vs 3 Watt
Benchmarks
PassMark - Single thread mark	151 vs 95

Compare benchmarks

CPU 1: Intel Atom Z670
CPU 2: Intel Atom Z520

PassMark - Single thread mark

CPU 1

CPU 2

151

PassMark - CPU mark

CPU 1

CPU 2

158

122

Name	Intel Atom Z670	Intel Atom Z520
PassMark - Single thread mark	95	151
PassMark - CPU mark	158	122

Compare specifications (specs)

	Intel Atom Z670	Intel Atom Z520
Essentials
Architecture codename	Lincroft	Silverthorne
Launch date	April 2011	April 2008
Place in performance rating	3324	3316
Processor Number	Z670	Z520
Series	Legacy Intel Atom® Processors	Legacy Intel Atom® Processors
Status	Discontinued	Discontinued
Vertical segment	Mobile	Mobile
Performance
Base frequency	1.50 GHz	1.33 GHz
Die size	65 mm	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	90°C
Maximum frequency	1.5 GHz	1.33 GHz
Number of cores	1	1
Number of threads	2
Transistor count	140 million	47 million
VID voltage range	1.1125-1.5000V	0.75-1.1V
Bus Speed		533 MHz FSB
Memory
Max memory channels	1
Maximum memory size	2.93 GB
Supported memory types	DDR2 800
Graphics
Graphics base frequency	400 MHz
Processor graphics	Integrated
Graphics interfaces
LVDS
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	13.8mmx13.8mm	13mm x 14mm
Sockets supported	T-PBGA518	PBGA441
Thermal Design Power (TDP)	3 Watt	2 Watt
Scenario Design Power (SDP)		0.96 W
Peripherals
PCI support
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Intel 64
Intel® Hyper-Threading technology
Thermal Monitoring
FSB parity
Intel® Demand Based Switching
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)