EPYC 7552 vs Xeon Silver 4123

Primary details

Comparing Xeon Silver 4123 and EPYC 7552 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	773	107
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	15.47
Market segment	Server	Server
Series	no data	AMD EPYC
Architecture codename	no data	Zen 2 (2019−2020)
Release date	1 January 2018 (6 years ago)	7 August 2019 (4 years ago)
Launch price (MSRP)	no data	$4,025
Current price	no data	$1747 (0.4x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Silver 4123 and EPYC 7552 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	3 GHz	2.2 GHz
Boost clock speed	3.2 GHz	3.35 GHz
L1 cache	no data	96K (per core)
L2 cache	no data	512K (per core)
L3 cache	11 MB	192 MB (shared)
Chip lithography	14 nm	7 nm, 14 nm
Die size	no data	192 mm2
Number of transistors	no data	4,800 million
64 bit support	-	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon Silver 4123 and EPYC 7552 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	no data	2 (Multiprocessor)
Socket	FCLGA3647	TR4
Power consumption (TDP)	105 Watt	200 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4123 and EPYC 7552. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512	no data
AES-NI	+	+
AVX	no data	+
vPro	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	no data
Turbo Boost Max 3.0	-	no data
Status	Launched	no data

Security technologies

Xeon Silver 4123 and EPYC 7552 technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Silver 4123 and EPYC 7552 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4123 and EPYC 7552. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400	DDR4 Eight-channel
Maximum memory size	512 GB	4 TiB
Max memory channels	6	8
Maximum memory bandwidth	no data	204.763 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Silver 4123 and EPYC 7552.

PCIe version	3.0	no data
PCI Express lanes	48	no data

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.

EPYC 7552 outperforms Xeon Silver 4123 by 255% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	9.31	33.04
Recency	1 January 2018	7 August 2019
Physical cores	8	48
Threads	16	96
Chip lithography	14 nm	7 nm
Power consumption (TDP)	105 Watt	200 Watt

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Should you still have questions on choice between Xeon Silver 4123 and EPYC 7552, ask them in Comments section, and we shall answer.

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