Atom Z520PT vs N455

Primary details

Comparing Atom N455 and Atom Z520PT processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Atom	Intel Atom
Architecture codename	Pinetrail (2009−2011)	Silverthorne (2008−2010)
Release date	1 May 2010 (14 years ago)	2 March 2009 (15 years ago)
Launch price (MSRP)	$64	no data

Detailed specifications

Atom N455 and Atom Z520PT basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	1 (Single-Core)	1 (Single-Core)
Threads	2	2
Base clock speed	1.66 GHz	1.33 GHz
Boost clock speed	1.66 GHz	0.03 GHz
Bus type	no data	FSB
Bus rate	533 MHz	533.33 MT/s
Multiplier	no data	10
L1 cache	64 KB (per core)	56 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	0 KB	0 KB
Chip lithography	45 nm	45 nm
Die size	66 mm2	24.18 mm2
Maximum core temperature	100 °C	90 °C
Number of transistors	123 million	47 million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	no data	0.9V-1.1V

Compatibility

Information on Atom N455 and Atom Z520PT compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1 (Uniprocessor)
Socket	FCBGA559	FCBGA437,PBGA441
Power consumption (TDP)	6.5 Watt	2.2 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N455 and Atom Z520PT. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	+	+
Idle States	no data	+
Thermal Monitoring	+	+
Demand Based Switching	-	-
FSB parity	no data	-
Status	Discontinued	Discontinued

Security technologies

Atom N455 and Atom Z520PT technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom N455 and Atom Z520PT are enumerated here.

VT-d	-	-
VT-x	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom N455 and Atom Z520PT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	unknown
Maximum memory size	2 GB	no data
Max memory channels	1	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Intel GMA 3150

On certain motherboards (Chipset feature)

Pros & cons summary

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Recency	1 May 2010	2 March 2009
Power consumption (TDP)	6 Watt	2 Watt

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