Xeon E-2456 vs E-2478

Primary details

Comparing Xeon E-2478 and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	312	469
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	82.50	92.83
Market segment	Server	Server
Power efficiency	22.22	17.70
Architecture codename	Raptor Lake-S (2023−2024)	Raptor Lake-S (2023−2024)
Release date	14 December 2023 (less than a year ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$568	$375

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E-2456 has 13% better value for money than Xeon E-2478.

Detailed specifications

Xeon E-2478 and Xeon E-2456 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)	6 (Hexa-Core)
Threads	16	12
Base clock speed	2.8 GHz	3.3 GHz
Boost clock speed	5.2 GHz	5.1 GHz
Bus rate	16 GT/s	16 GT/s
L1 cache	80 KB (per core)	80 KB (per core)
L2 cache	2 MB (per core)	1.25 MB (per core)
L3 cache	24 MB (shared)	18 MB (shared)
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	257 mm2	163 mm2
Maximum core temperature	100 °C	100 °C
64 bit support	+	+

Compatibility

Information on Xeon E-2478 and Xeon E-2456 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	FCLGA1700
Power consumption (TDP)	80 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E-2478 and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2	2
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Turbo Boost Max 3.0	+	-

Security technologies

Xeon E-2478 and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E-2478 and Xeon E-2456 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 E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800	DDR5-4800
Maximum memory size	128 GB	128 GB
Max memory channels	2	2
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 E-2456.

PCIe version	5	5
PCI Express lanes	16	16

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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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	19.49	15.53
Physical cores	8	6
Threads	16	12

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Should you still have questions on choice between Xeon E-2478 and Xeon E-2456, ask them in Comments section, and we shall answer.

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