Xeon E-2456 vs Atom N450

Primary details

Comparing Atom N450 and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	468
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	92.83
Market segment	Laptop	Server
Series	Intel Atom	no data
Power efficiency	no data	17.70
Architecture codename	Pinetrail (2009−2011)	Raptor Lake-S (2023−2024)
Release date	21 December 2009 (14 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$64	$375

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom N450 and Xeon E-2456 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	1 (Single-Core)	6 (Hexa-Core)
Threads	2	12
Base clock speed	1.66 GHz	3.3 GHz
Boost clock speed	1.67 GHz	5.1 GHz
Bus rate	533 MHz	16 GT/s
L1 cache	56 KB (per core)	80 KB (per core)
L2 cache	512 KB (per core)	1.25 MB (per core)
L3 cache	0 KB	18 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	66 mm2	163 mm2
Maximum core temperature	100 °C	100 °C
Number of transistors	123 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Atom N450 and Xeon E-2456 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	FCBGA559	FCLGA1700
Power consumption (TDP)	5.5 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N450 and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	2
Hyper-Threading Technology	+	+
Idle States	no data	+
Thermal Monitoring	+	+
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-

Security technologies

Atom N450 and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom N450 and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom N450 and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR5-4800
Maximum memory size	2 GB	128 GB
Max memory channels	1	2
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

N/A

Peripherals

Specifications and connection of peripherals supported by Atom N450 and Xeon E-2456.

PCIe version	no data	5
PCI Express lanes	no data	16

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	21 December 2009	14 December 2023
Physical cores	1	6
Threads	2	12
Power consumption (TDP)	5 Watt	80 Watt

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Should you still have questions on choice between Atom N450 and Xeon E-2456, ask them in Comments section, and we shall answer.

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