Xeon Platinum 8558U vs Atom N450

Primary details

Comparing Atom N450 and Xeon Platinum 8558U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Atom	no data
Architecture codename	Pinetrail (2009−2011)	Emerald Rapids (2023)
Release date	21 December 2009 (14 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$64	$3,720

Detailed specifications

Atom N450 and Xeon Platinum 8558U 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)	48 (Octatetraconta-Core)
Threads	2	96
Base clock speed	1.66 GHz	2 GHz
Boost clock speed	1.67 GHz	4 GHz
Bus rate	533 MHz	no data
L1 cache	56 KB (per core)	80 KB (per core)
L2 cache	512 KB (per core)	2 MB (per core)
L3 cache	0 KB	260 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	66 mm2	2x 763 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	78 °C
Number of transistors	123 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Atom N450 and Xeon Platinum 8558U 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	FCLGA4677
Power consumption (TDP)	5.5 Watt	300 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N450 and Xeon Platinum 8558U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Thermal Monitoring	+	-
Demand Based Switching	-	no data
Deep Learning Boost	-	+

Security technologies

Atom N450 and Xeon Platinum 8558U technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
SGX	no data	Yes with Intel® SPS
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom N450 and Xeon Platinum 8558U 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 Platinum 8558U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR5 @ 4800 MT/s (1 DPC)
Maximum memory size	2 GB	4 TB
Max memory channels	1	8
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 Platinum 8558U.

PCIe version	no data	5.0
PCI Express lanes	no data	80

Pros & cons summary

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Recency	21 December 2009	14 December 2023
Physical cores	1	48
Threads	2	96
Power consumption (TDP)	5 Watt	300 Watt

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Should you still have questions on choice between Atom N450 and Xeon Platinum 8558U, ask them in Comments section, and we shall answer.

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