Core i9-12900E vs Atom N455

Primary details

Comparing Atom N455 and Core i9-12900E processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	342
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Atom	no data
Architecture codename	Pinetrail (2009−2010)	Alder Lake-S (2022)
Release date	1 June 2010 (14 years ago)	4 January 2022 (2 years ago)
Launch price (MSRP)	$64	no data
Current price	$163 (2.5x MSRP)	no data

Detailed specifications

Atom N455 and Core i9-12900E 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)	16 (Hexadeca-Core)
Threads	2	24
Base clock speed	1.66 GHz	2.3 GHz
Boost clock speed	1.67 GHz	5 GHz
Bus support	533 MHz	no data
L1 cache	64 KB (per core)	80K (per core)
L2 cache	512K (per core)	1.25 MB (per core)
L3 cache	0 KB	30 MB (shared)
Chip lithography	45 nm	10 nm
Die size	66 mm2	215 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	123 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes

Compatibility

Information on Atom N455 and Core i9-12900E 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	1700
Power consumption (TDP)	6.5 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N455 and Core i9-12900E. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	no data
AES-NI	no data	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	no data
TSX	no data	+
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
Status	Discontinued	no data

Security technologies

Atom N455 and Core i9-12900E technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom N455 and Core i9-12900E are enumerated here.

VT-d	-	+
VT-x	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom N455 and Core i9-12900E. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4, DDR5 Dual-channel
Maximum memory size	2 GB	no data
Max memory channels	1	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare

Intel GMA 3150

Intel UHD Graphics 770

Peripherals

Specifications and connection of peripherals supported by Atom N455 and Core i9-12900E.

PCIe version	no data	5.0
PCI Express lanes	no data	20

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 June 2010	4 January 2022
Physical cores	1	16
Threads	2	24
Chip lithography	45 nm	10 nm
Power consumption (TDP)	6 Watt	65 Watt

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Should you still have questions on choice between Atom N455 and Core i9-12900E, ask them in Comments section, and we shall answer.

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