AMD EPYC 7543P vs AMD EPYC 7643

Comparative analysis of AMD EPYC 7543P and AMD EPYC 7643 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD EPYC 7543P

AMD EPYC 7643

Differences

Reasons to consider the AMD EPYC 7543P

Around 3% higher clock speed: 3.7 GHz vs 3.6 GHz
Around 36% better performance in PassMark - Single thread mark: 2741 vs 2020

Specifications (specs)
Maximum frequency	3.7 GHz vs 3.6 GHz
Benchmarks
PassMark - Single thread mark	2741 vs 2020

Reasons to consider the AMD EPYC 7643

16 more cores, run more applications at once: 48 vs 32
32 more threads: 96 vs 64
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 37% better performance in PassMark - CPU mark: 91554 vs 66687

Specifications (specs)
Number of cores	48 vs 32
Number of threads	96 vs 64
L1 cache	3 MB vs 2 MB
L2 cache	24 MB vs 16 MB
Benchmarks
PassMark - CPU mark	91554 vs 66687

Compare benchmarks

CPU 1: AMD EPYC 7543P
CPU 2: AMD EPYC 7643

PassMark - Single thread mark

CPU 1

CPU 2

2741

2020

PassMark - CPU mark

CPU 1

CPU 2

66687

91554

Name	AMD EPYC 7543P	AMD EPYC 7643
PassMark - Single thread mark	2741	2020
PassMark - CPU mark	66687	91554

Compare specifications (specs)

	AMD EPYC 7543P	AMD EPYC 7643
Essentials
Architecture codename	Zen 3	Zen 3
Launch date	15 Mar 2021	15 Mar 2021
Launch price (MSRP)	$2730	$4995
OPN PIB	100-100000341WOF	100-100000326WOF
OPN Tray	100-000000341	100-000000326
Place in performance rating	219	238
Vertical segment	Server	Server
Performance
Base frequency	2.8 GHz	2.3 GHz
L1 cache	2 MB	3 MB
L2 cache	16 MB	24 MB
L3 cache	256 MB	256 MB
Manufacturing process technology	7 nm+	7 nm+
Maximum frequency	3.7 GHz	3.6 GHz
Number of cores	32	48
Number of threads	64	96
Unlocked
Memory
ECC memory support
Max memory channels	8	8
Maximum memory bandwidth	190.73 GB/s	190.73 GB/s
Maximum memory size	4 TB	4 TB
Supported memory types	DDR4-3200	DDR4-3200
Compatibility
Configurable TDP	225-240 Watt	225-240 Watt
Socket Count	1P	1P/2P
Sockets supported	SP3	SP3
Thermal Design Power (TDP)	240 Watt	240 Watt
Peripherals
Max number of PCIe lanes	128	128
PCI Express revision	4.0	4.0
Advanced Technologies
AMD SenseMI
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions
Virtualization
AMD Virtualization (AMD-V™)