AMD EPYC 7532 vs AMD EPYC 7643

Comparative analysis of AMD EPYC 7532 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 7532

AMD EPYC 7643

Differences

Reasons to consider the AMD EPYC 7532

Around 20% lower typical power consumption: 200 Watt vs 240 Watt
Around 11% better performance in PassMark - Single thread mark: 2134 vs 1915

Specifications (specs)
Thermal Design Power (TDP)	200 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark	2134 vs 1915

Reasons to consider the AMD EPYC 7643

CPU is newer: launch date 1 year(s) 0 month(s) later
16 more cores, run more applications at once: 48 vs 32
32 more threads: 96 vs 64
Around 9% higher clock speed: 3.6 GHz vs 3.3 GHz
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 8% better performance in PassMark - CPU mark: 88348 vs 81833

Specifications (specs)
Launch date	15 Mar 2021 vs 19 Feb 2020
Number of cores	48 vs 32
Number of threads	96 vs 64
Maximum frequency	3.6 GHz vs 3.3 GHz
L1 cache	3 MB vs 2 MB
L2 cache	24 MB vs 16 MB
Benchmarks
PassMark - CPU mark	88348 vs 81833

Compare benchmarks

CPU 1: AMD EPYC 7532
CPU 2: AMD EPYC 7643

PassMark - Single thread mark

CPU 1

CPU 2

2134

1915

PassMark - CPU mark

CPU 1

CPU 2

81833

88348

Name	AMD EPYC 7532	AMD EPYC 7643
PassMark - Single thread mark	2134	1915
PassMark - CPU mark	81833	88348

Compare specifications (specs)

	AMD EPYC 7532	AMD EPYC 7643
Essentials
Architecture codename	Zen 2	Zen 3
Launch date	19 Feb 2020	15 Mar 2021
OPN PIB	100-000000136WOF	100-100000326WOF
OPN Tray	100-000000136	100-000000326
Place in performance rating	215	220
Vertical segment	Server	Server
Launch price (MSRP)		$4995
Performance
Base frequency	2.4 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, 14 nm	7 nm+
Maximum frequency	3.3 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	190.7 GB/s	190.73 GB/s
Maximum memory size	4 TB	4 TB
Supported memory types	DDR4-3200	DDR4-3200
Compatibility
Socket Count	1P/2P	1P/2P
Sockets supported	SP3	SP3
Thermal Design Power (TDP)	200 Watt	240 Watt
Configurable TDP		225-240 Watt
Peripherals
Max number of PCIe lanes	128	128
PCI Express revision	4.0	4.0
PCIe configurations	x16, x8
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™)