AMD EPYC 7542 vs AMD EPYC 7742

Comparative analysis of AMD EPYC 7542 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 7542

AMD EPYC 7742

Differences

Reasons to consider the AMD EPYC 7742

32 more cores, run more applications at once: 64 vs 32
64 more threads: 128 vs 64
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 4% better performance in PassMark - Single thread mark: 2153 vs 2063
Around 30% better performance in PassMark - CPU mark: 97916 vs 75117

Specifications (specs)
Number of cores	64 vs 32
Number of threads	128 vs 64
L1 cache	4 MB vs 2 MB
L2 cache	32 MB vs 16 MB
L3 cache	256 MB vs 128 MB
Benchmarks
PassMark - Single thread mark	2153 vs 2063
PassMark - CPU mark	97916 vs 75117

Compare benchmarks

CPU 1: AMD EPYC 7542
CPU 2: AMD EPYC 7742

PassMark - Single thread mark

CPU 1

CPU 2

2063

2153

PassMark - CPU mark

CPU 1

CPU 2

75117

97916

Name	AMD EPYC 7542	AMD EPYC 7742
PassMark - Single thread mark	2063	2153
PassMark - CPU mark	75117	97916

Compare specifications (specs)

	AMD EPYC 7542	AMD EPYC 7742
Essentials
Architecture codename	Zen 2	Zen 2
Launch date	7 Aug 2019	7 Aug 2019
Launch price (MSRP)	$3400
OPN PIB	100-100000075WOF
OPN Tray	100-000000075
Place in performance rating	231	94
Vertical segment	Server	Server
Performance
Base frequency	2.9 GHz	2.25 GHz
L1 cache	2 MB	4 MB
L2 cache	16 MB	32 MB
L3 cache	128 MB	256 MB
Manufacturing process technology	7 nm, 14 nm	7 nm, 14 nm
Maximum frequency	3.4 GHz	3.4 GHz
Number of cores	32	64
Number of threads	64	128
Unlocked
Memory
ECC memory support
Max memory channels	8	8
Maximum memory bandwidth	190.7 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
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™)