Atom Z2420 vs Core i5-520UM

Primary details

Comparing Core i5-520UM and Atom Z2420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2701	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)	Saltwell
Release date	4 January 2010 (14 years ago)	1 January 2013 (11 years ago)
Launch price (MSRP)	$241	no data
Current price	$189 (0.8x MSRP)	$32

Detailed specifications

Core i5-520UM and Atom Z2420 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)	1 (Single-Core)
Threads	4	2
Base clock speed	1.07 GHz	no data
Boost clock speed	1.87 GHz	1.2 GHz
Bus support	2500 MHz	no data
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	512K (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	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core i5-520UM and Atom Z2420 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
Socket	BGA1288	FC-MB4617
Power consumption (TDP)	18 Watt	3 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-520UM and Atom Z2420. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE, Intel® SSE2, Intel® SSE3
AES-NI	+	no data
FMA	+	no data
vPro	+	no data
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
GPIO	no data	152
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	Discontinued

Security technologies

Core i5-520UM and Atom Z2420 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-520UM and Atom Z2420 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-520UM and Atom Z2420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800	DDR2
Maximum memory size	8 GB	1 GB
Max memory channels	2	2
Maximum memory bandwidth	12.8 GB/s	6.4 GB/s
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	PowerVR SGX540 (400 MHz)
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	500 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i5-520UM and Atom Z2420 integrated GPUs.

Number of displays supported

2

2

Peripherals

Specifications and connection of peripherals supported by Core i5-520UM and Atom Z2420.

PCIe version	2.0	no data
PCI Express lanes	16	no data
USB revision	no data	2.0 OTG
Number of USB ports	no data	1
UART	no data	3

Pros & cons summary

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Recency	4 January 2010	1 January 2013
Physical cores	2	1
Threads	4	2
Power consumption (TDP)	18 Watt	3 Watt

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Should you still have questions on choice between Core i5-520UM and Atom Z2420, ask them in Comments section, and we shall answer.

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