Atom N280 vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Atom N280 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2553	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.86	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Atom
Architecture codename	Wolfdale (2008−2010)	DiamondVille (2008−2009)
Release date	1 January 2008 (16 years ago)	1 February 2009 (15 years ago)
Current price	$67	$229

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Duo E8400 and Atom N280 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	3 GHz	1.66 GHz
Boost clock speed	3 GHz	1.66 GHz
Bus support	no data	667 MHz
L1 cache	64 KB (per core)	56 KB
L2 cache	6 MB (shared)	512 KB
L3 cache	0 KB	0 KB
Chip lithography	45 nm	45 nm
Die size	104 mm2	26 mm2
Maximum core temperature	72 °C	90 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	47 Million
64 bit support	+	-
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	0.9V-1.1625V

Compatibility

Information on Core 2 Duo E8400 and Atom N280 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 Core 2 Duo E8400 and Atom N280. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE2, Intel® SSE3, Intel® SSSE3
AES-NI	-	no data
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

Core 2 Duo E8400 and Atom N280 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Atom N280 are enumerated here.

VT-d	+	-
VT-x	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Atom N280. 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 Core 2 Duo E8400 and Atom N280.

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	1 January 2008	1 February 2009
Physical cores	2	1
Power consumption (TDP)	65 Watt	2 Watt

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Should you still have questions on choice between Core 2 Duo E8400 and Atom N280, ask them in Comments section, and we shall answer.

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