Xeon E-2478 vs EPYC 7643P

Primary details

Comparing EPYC 7643P and Xeon E-2478 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Architecture codename	Milan (2021)	Raptor Lake-S
Release date	no data	14 December 2023 (less than a year ago)

Detailed specifications

EPYC 7643P and Xeon E-2478 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	48 (Octatetraconta-Core)	8 (Octa-Core)
Threads	96	16
Base clock speed	2.3 GHz	2.8 GHz
Boost clock speed	3.6 GHz	5.2 GHz
L1 cache	64 KB (per core)	80 KB (per core)
L2 cache	512 KB (per core)	2 MB (per core)
L3 cache	256 MB (shared)	24 MB (shared)
Chip lithography	7 nm	Intel 7 nm
Die size	8x 81 mm2	257 mm2
Maximum core temperature	no data	100 °C
Number of transistors	33,200 million	no data
64 bit support	-	+
Unlocked multiplier	No	No

Compatibility

Information on EPYC 7643P and Xeon E-2478 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	SP3	FCLGA1700
Power consumption (TDP)	225 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7643P and Xeon E-2478. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	no data	+
Turbo Boost Technology	no data	2
Hyper-Threading Technology	no data	+
TSX	no data	-
Idle States	no data	+
Thermal Monitoring	no data	+
Turbo Boost Max 3.0	no data	+
Status	no data	Launched

Security technologies

EPYC 7643P and Xeon E-2478 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7643P and Xeon E-2478 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7643P and Xeon E-2478. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-4800
Maximum memory size	no data	128 GB
Max memory channels	no data	2
ECC memory support	no data	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by EPYC 7643P and Xeon E-2478.

PCIe version	4.0	5
PCI Express lanes	no data	20

Pros & cons summary

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Physical cores	48	8
Threads	96	16
Power consumption (TDP)	225 Watt	80 Watt

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Should you still have questions on choice between EPYC 7643P and Xeon E-2478, ask them in Comments section, and we shall answer.

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