AMD EPYC 7662 vs AMD EPYC 7742

Comparative analysis of AMD EPYC 7662 and AMD EPYC 7742 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 7662

AMD EPYC 7742

Differences

Reasons to consider the AMD EPYC 7662

CPU is newer: launch date 6 month(s) later

Launch date	19 Feb 2020 vs 7 Aug 2019

Reasons to consider the AMD EPYC 7742

Around 3% higher clock speed: 3.4 GHz vs 3.3 GHz
Around 3% better performance in PassMark - Single thread mark: 2157 vs 2089

Specifications (specs)
Maximum frequency	3.4 GHz vs 3.3 GHz
Benchmarks
PassMark - Single thread mark	2157 vs 2089
PassMark - CPU mark	97501 vs 97178

Compare benchmarks

CPU 1: AMD EPYC 7662
CPU 2: AMD EPYC 7742

PassMark - Single thread mark

CPU 1

CPU 2

2089

2157

PassMark - CPU mark

CPU 1

CPU 2

97178

97501

Name	AMD EPYC 7662	AMD EPYC 7742
PassMark - Single thread mark	2089	2157
PassMark - CPU mark	97178	97501

Compare specifications (specs)

	AMD EPYC 7662	AMD EPYC 7742
Essentials
Architecture codename	Zen 3	Zen 2
Launch date	19 Feb 2020	7 Aug 2019
OPN PIB	100-100000137WOF
OPN Tray	100-000000137
Place in performance rating	101	94
Vertical segment	Server	Server
Performance
Base frequency	2.0 GHz	2.25 GHz
L1 cache	4 MB	4 MB
L2 cache	32 MB	32 MB
L3 cache	256 MB	256 MB
Manufacturing process technology	7 nm, 14 nm	7 nm, 14 nm
Maximum frequency	3.3 GHz	3.4 GHz
Number of cores	64	64
Number of threads	128	128
Unlocked
Memory
ECC memory support
Max memory channels	8	8
Maximum memory bandwidth	190.73 GB/s	190.7 GB/s
Maximum memory size	4 TB	4 TB
Supported memory types	DDR4-3200	DDR4-3200
Compatibility
Socket Count	1P/2P
Sockets supported	SP3	SP3
Thermal Design Power (TDP)	225 Watt	225 Watt
Max number of CPUs in a configuration		2
Peripherals
Max number of PCIe lanes	128	128
PCI Express revision	4.0	4.0
PCIe configurations	x16, x8	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™)