Core i9-11900K vs Atom N280

Primary details

Comparing Atom N280 and Core i9-11900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	377
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	49.73
Market segment	Laptop	Desktop processor
Series	Intel Atom	no data
Architecture codename	DiamondVille (2008−2009)	Rocket Lake (2021)
Release date	1 February 2009 (15 years ago)	16 March 2021 (3 years ago)
Current price	$229	$246

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom N280 and Core i9-11900K 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)	8 (Octa-Core)
Threads	2	16
Base clock speed	1.66 GHz	3.5 GHz
Boost clock speed	1.66 GHz	5.2 GHz
Bus support	667 MHz	no data
L1 cache	56 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	0 KB	16 MB (shared)
Chip lithography	45 nm	14 nm
Die size	26 mm2	no data
Maximum core temperature	90 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	47 Million	no data
64 bit support	-	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes
VID voltage range	0.9V-1.1625V	no data

Compatibility

Information on Atom N280 and Core i9-11900K 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	PBGA437	FCLGA1200
Power consumption (TDP)	2.5 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N280 and Core i9-11900K. 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, Intel® AVX-512
AES-NI	no data	+
AVX	no data	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	+	+
TSX	no data	+
Idle States	no data	+
Thermal Monitoring	+	+
SIPP	no data	+
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	+
Status	Discontinued	Discontinued

Security technologies

Atom N280 and Core i9-11900K technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
Identity Protection	no data	+
SGX	no data	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom N280 and Core i9-11900K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom N280 and Core i9-11900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR4
Maximum memory size	8 GB	128 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	50 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	-	Intel UHD Graphics 750
Max video memory	-	64 GB
Quick Sync Video	-	+
Clear Video	-	+
Clear Video HD	-	+
Graphics max frequency	-	1.3 GHz
Execution Units	-	32
InTru 3D	-	+

Graphics interfaces

Available interfaces and connections of Atom N280 and Core i9-11900K integrated GPUs.

Number of displays supported

-

3

Graphics image quality

Maximum display resolutions supported by Atom N280 and Core i9-11900K integrated GPUs, including resolutions over different interfaces.

4K resolution support	-	+
Max resolution over HDMI 1.4	-	4096x2160@60Hz
Max resolution over eDP	-	5120 x 3200 @60Hz
Max resolution over DisplayPort	-	5120 x 3200 @60Hz

Graphics API support

APIs supported by Atom N280 and Core i9-11900K integrated GPUs, sometimes API versions are included.

DirectX	-	12.1
OpenGL	-	4.5

Peripherals

Specifications and connection of peripherals supported by Atom N280 and Core i9-11900K.

PCIe version	no data	4.0
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 February 2009	16 March 2021
Physical cores	1	8
Threads	2	16
Chip lithography	45 nm	14 nm
Power consumption (TDP)	2 Watt	125 Watt

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Should you still have questions on choice between Atom N280 and Core i9-11900K, ask them in Comments section, and we shall answer.

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