EPYC 7643P vs EPYC 7552

Place in the ranking	73	48
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	7.24	13.46
Market segment	Server	Server
Series	AMD EPYC	no data
Power efficiency	18.26	18.18
Architecture codename	Zen 2 (2017−2020)	Milan (2021−2023)
Release date	7 August 2019 (5 years ago)	5 September 2023 (1 year ago)
Launch price (MSRP)	$4,025	$2,722

Cost-effectiveness evaluation

Performance per price, higher is better.

EPYC 7643P has 86% better value for money than EPYC 7552.

Detailed specifications

EPYC 7552 and EPYC 7643P 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)	48 (Octatetraconta-Core)
Threads	96	96
Base clock speed	2.2 GHz	2.3 GHz
Boost clock speed	3.35 GHz	3.6 GHz
Multiplier	22	no data
L1 cache	3 MB	64 KB (per core)
L2 cache	24 MB	512 KB (per core)
L3 cache	192 MB (shared)	256 MB (shared)
Chip lithography	7 nm, 14 nm	7 nm
Die size	192 mm²	8x 81 mm²
Number of transistors	3,800 million	33,200 million
64 bit support	+	-
Windows 11 compatibility	+	no data

Compatibility

Information on EPYC 7552 and EPYC 7643P 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	2 (Multiprocessor)	1
Socket	SP3	SP3
Power consumption (TDP)	200 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7552 and EPYC 7643P. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Precision Boost 2	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7552 and EPYC 7643P are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7552 and EPYC 7643P. Depending on the motherboard, higher memory frequencies may be supported.

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

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

Peripherals

Specifications and connection of peripherals supported by EPYC 7552 and EPYC 7643P.

PCIe version	4.0	4.0
PCI Express lanes	128	128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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 40.04

EPYC 7643P 44.87
+12.1%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

EPYC 7552 61282

EPYC 7643P 68675
+12.1%