Atom Z2520 vs i5-450M

Primary details

Comparing Core i5-450M and Atom Z2520 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2590	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i5	no data
Architecture codename	Arrandale (2010−2011)	Clovertrail (2013)
Release date	20 June 2010 (14 years ago)	27 February 2013 (11 years ago)
Launch price (MSRP)	$32	no data

Detailed specifications

Core i5-450M and Atom Z2520 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	2 (Dual-core)	2 (Dual-core)
Threads	4	4
Base clock speed	2.4 GHz	1.2 GHz
Boost clock speed	2.66 GHz	1.2 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	no data
Multiplier	18	no data
L1 cache	128 KB	64 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	3 MB	0 KB
Chip lithography	32 nm	32 nm
Die size	81+114 mm2	65 mm2
Maximum core temperature	105 °C	90 °C
Number of transistors	382+177 Million	140 million
64 bit support	+	-
Windows 11 compatibility	-	-

Compatibility

Information on Core i5-450M and Atom Z2520 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 (Uniprocessor)	1
Socket	PGA988	FC-MB4760
Power consumption (TDP)	35 Watt	3 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-450M and Atom Z2520. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
FMA	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	+	no data
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
PAE	36 Bit	32 Bit
FDI	+	no data
Fast Memory Access	+	no data
Smart Idle	no data	+
Status	Discontinued	Discontinued

Security technologies

Core i5-450M and Atom Z2520 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-450M and Atom Z2520 are enumerated here.

VT-d	-	no data
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-450M and Atom Z2520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR2
Maximum memory size	8 GB	2 GB
Max memory channels	2	2
Maximum memory bandwidth	17.051 GB/s	8.5 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	SGX 544MP2
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	766 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i5-450M and Atom Z2520 integrated GPUs.

Number of displays supported

2

2

Peripherals

Specifications and connection of peripherals supported by Core i5-450M and Atom Z2520.

PCIe version	2.0	no data
PCI Express lanes	16	no data
USB revision	no data	2.0 OTG, USB-SPH 2.0
Number of USB ports	no data	2
UART	no data	3

Pros & cons summary

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Recency	20 June 2010	27 February 2013
Power consumption (TDP)	35 Watt	3 Watt

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Should you still have questions on choice between Core i5-450M and Atom Z2520, ask them in Comments section, and we shall answer.

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