Atom x7405C vs i5-520E

Primary details

Comparing Core i5-520E and Atom x7405C processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	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	Westmere (2010−2011)	Amston Lake (2024)
Release date	7 January 2010 (14 years ago)	8 April 2024 (less than a year ago)
Launch price (MSRP)	$210	$57

Detailed specifications

Core i5-520E and Atom x7405C 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)	4 (Quad-Core)
Threads	4	4
Base clock speed	no data	1.7 GHz
Boost clock speed	2.4 GHz	3.4 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	96 KB (per core)
L2 cache	512 KB	2 MB (shared)
L3 cache	3 MB	6 MB (shared)
Chip lithography	32 nm	10 nm
Die size	81 mm2	no data
Number of transistors	382 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Core i5-520E and Atom x7405C 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	no data	Intel BGA 1264
Power consumption (TDP)	35 Watt	12 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-520E and Atom x7405C. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	-
AVX	-	+
Enhanced SpeedStep (EIST)	+	+

Security technologies

Core i5-520E and Atom x7405C technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-520E and Atom x7405C are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-520E and Atom x7405C. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1066	DDR4, DDR5
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	17.051 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Intel HD Graphics (Ironlake)

N/A

Peripherals

Specifications and connection of peripherals supported by Core i5-520E and Atom x7405C.

PCIe version	2.0	3.0
PCI Express lanes	16	9

Pros & cons summary

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Recency	7 January 2010	8 April 2024
Physical cores	2	4
Chip lithography	32 nm	10 nm
Power consumption (TDP)	35 Watt	12 Watt

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Should you still have questions on choice between Core i5-520E and Atom x7405C, ask them in Comments section, and we shall answer.

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