Xeon Platinum 8558U vs Atom x5-E3940

Primary details

Comparing Atom x5-E3940 and Xeon Platinum 8558U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2212	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	5x Intel Atom	no data
Architecture codename	Apollo Lake (2016)	Emerald Rapids
Release date	30 August 2014 (9 years ago)	1 October 2023 (less than a year ago)
Current price	$546	no data

Detailed specifications

Atom x5-E3940 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	4 (Quad-Core)	48 (Octatetraconta-Core)
Threads	4	96
Base clock speed	1.6 GHz	2 GHz
Boost clock speed	1.8 GHz	4 GHz
L1 cache	56K (per core)	80 KB (per core)
L2 cache	2 MB (shared)	2 MB (per core)
L3 cache	0 KB	260 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Die size	no data	2x 763 mm2
Maximum core temperature	no data	78 °C
Maximum case temperature (TCase)	103 °C	78 °C
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Atom x5-E3940 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 (Uniprocessor)	1
Socket	Intel BGA 1296	FCLGA4677
Power consumption (TDP)	10 Watt	300 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom x5-E3940 and Xeon Platinum 8558U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	no data	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	no data	+
Status	no data	Launched

Security technologies

Atom x5-E3940 and Xeon Platinum 8558U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Atom x5-E3940 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 x5-E3940 and Xeon Platinum 8558U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR5 @ 4800 MT/s (1 DPC)
Maximum memory size	8 GB	4 TB
Max memory channels	no data	8
ECC memory support	no data	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Intel HD Graphics 500

N/A

Peripherals

Specifications and connection of peripherals supported by Atom x5-E3940 and Xeon Platinum 8558U.

PCIe version	2.0	5.0
PCI Express lanes	4	80

Pros & cons summary

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Recency	30 August 2014	1 October 2023
Physical cores	4	48
Threads	4	96
Power consumption (TDP)	10 Watt	300 Watt

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Should you still have questions on choice between Atom x5-E3940 and Xeon Platinum 8558U, ask them in Comments section, and we shall answer.

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