Xeon Platinum 8558U vs E-2478

Primary details

Comparing Xeon E-2478 and Xeon Platinum 8558U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	313	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	82.67	no data
Market segment	Server	Server
Power efficiency	22.22	no data
Architecture codename	Raptor Lake-S (2023−2024)	Emerald Rapids (2023)
Release date	14 December 2023 (less than a year ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$568	$3,720

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E-2478 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	8 (Octa-Core)	48 (Octatetraconta-Core)
Threads	16	96
Base clock speed	2.8 GHz	2 GHz
Boost clock speed	5.2 GHz	4 GHz
Bus rate	16 GT/s	no data
L1 cache	80 KB (per core)	80 KB (per core)
L2 cache	2 MB (per core)	2 MB (per core)
L3 cache	24 MB (shared)	260 MB (shared)
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	257 mm2	2x 763 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	78 °C
64 bit support	+	+

Compatibility

Information on Xeon E-2478 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	FCLGA1700	FCLGA4677
Power consumption (TDP)	80 Watt	300 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E-2478 and Xeon Platinum 8558U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	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	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Turbo Boost Max 3.0	+	no data
Deep Learning Boost	-	+

Security technologies

Xeon E-2478 and Xeon Platinum 8558U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E-2478 and Xeon Platinum 8558U are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E-2478 and Xeon Platinum 8558U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800	DDR5 @ 4800 MT/s (1 DPC)
Maximum memory size	128 GB	4 TB
Max memory channels	2	8
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E-2478 and Xeon Platinum 8558U.

PCIe version	5	5.0
PCI Express lanes	16	80

Pros & cons summary

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Physical cores	8	48
Threads	16	96
Power consumption (TDP)	80 Watt	300 Watt

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Should you still have questions on choice between Xeon E-2478 and Xeon Platinum 8558U, ask them in Comments section, and we shall answer.

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