Atom N270 vs Pentium E5400

Primary details

Comparing Pentium E5400 and Atom N270 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2779	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.46	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Atom
Power efficiency	0.89	no data
Architecture codename	Wolfdale (2008−2010)	DiamondVille (2008−2009)
Release date	18 January 2009 (15 years ago)	2 April 2008 (16 years ago)
Launch price (MSRP)	$55	$44

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium E5400 and Atom N270 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	2	2
Base clock speed	2.7 GHz	1.6 GHz
Boost clock speed	2.7 GHz	0.1 GHz
Bus type	no data	FSB
Bus rate	no data	533.33 MT/s
Multiplier	no data	12
L1 cache	64 KB (per core)	56 KB
L2 cache	2 MB (shared)	512 KB
L3 cache	0 KB	0 KB
Chip lithography	45 nm	45 nm
Die size	82 mm2	25.9638 mm2
Maximum core temperature	74 °C	90 °C
Number of transistors	228 million	47 Million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	0.9V-1.1625V

Compatibility

Information on Pentium E5400 and Atom N270 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	LGA775	PBGA437
Power consumption (TDP)	65 Watt	2.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium E5400 and Atom N270. You'll probably need this information if you require some particular technology.

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

Security technologies

Pentium E5400 and Atom N270 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium E5400 and Atom N270 are enumerated here.

VT-d	-	-
VT-x	no data	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium E5400 and Atom N270. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	no data
Maximum memory size	no data	8 GB

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

-

Peripherals

Specifications and connection of peripherals supported by Pentium E5400 and Atom N270.

PCIe version

2.0

no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Recency	18 January 2009	2 April 2008
Physical cores	2	1
Power consumption (TDP)	65 Watt	2 Watt

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Should you still have questions on choice between Pentium E5400 and Atom N270, ask them in Comments section, and we shall answer.

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