AMD EPYC 9254 vs AMD EPYC 7742

Comparative analysis of AMD EPYC 9254 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 9254

AMD EPYC 7742

Differences

Reasons to consider the AMD EPYC 9254

CPU is newer: launch date 3 year(s) 3 month(s) later
Around 22% higher clock speed: 4.15 GHz vs 3.4 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 5 nm vs 7 nm, 14 nm
Around 13% lower typical power consumption: 200 Watt vs 225 Watt
Around 51% better performance in PassMark - Single thread mark: 3259 vs 2157

Specifications (specs)
Launch date	10 Nov 2022 vs 7 Aug 2019
Maximum frequency	4.15 GHz vs 3.4 GHz
Manufacturing process technology	5 nm vs 7 nm, 14 nm
Thermal Design Power (TDP)	200 Watt vs 225 Watt
Benchmarks
PassMark - Single thread mark	3259 vs 2157

Reasons to consider the AMD EPYC 7742

40 more cores, run more applications at once: 64 vs 24
80 more threads: 128 vs 48
2.7x more L1 cache, more data can be stored in the L1 cache for quick access later
1398101.3x more L2 cache, more data can be stored in the L2 cache for quick access later
2097152x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 41% better performance in PassMark - CPU mark: 97501 vs 68988

Specifications (specs)
Number of cores	64 vs 24
Number of threads	128 vs 48
L1 cache	4 MB vs 64K (per core)
L2 cache	32 MB vs 1MB (per core)
L3 cache	256 MB vs 128MB (shared)
Benchmarks
PassMark - CPU mark	97501 vs 68988

Compare benchmarks

CPU 1: AMD EPYC 9254
CPU 2: AMD EPYC 7742

PassMark - Single thread mark

CPU 1

CPU 2

3259

2157

PassMark - CPU mark

CPU 1

CPU 2

68988

97501

Name	AMD EPYC 9254	AMD EPYC 7742
PassMark - Single thread mark	3259	2157
PassMark - CPU mark	68988	97501

Compare specifications (specs)

	AMD EPYC 9254	AMD EPYC 7742
Essentials
Launch date	10 Nov 2022	7 Aug 2019
Launch price (MSRP)	$2299
Place in performance rating	77	95
Architecture codename		Zen 2
Vertical segment		Server
Performance
Base frequency	2.9 GHz	2.25 GHz
Die size	4x 72 mm²
L1 cache	64K (per core)	4 MB
L2 cache	1MB (per core)	32 MB
L3 cache	128MB (shared)	256 MB
Manufacturing process technology	5 nm	7 nm, 14 nm
Maximum frequency	4.15 GHz	3.4 GHz
Number of cores	24	64
Number of threads	48	128
Transistor count	26,280 million
Unlocked
Memory
ECC memory support
Supported memory types	DDR5-4800 MHz, Twelve-channel	DDR4-3200
Max memory channels		8
Maximum memory bandwidth		190.7 GB/s
Maximum memory size		4 TB
Compatibility
Configurable TDP	200-240 Watt
Max number of CPUs in a configuration	2	2
Sockets supported	SP5	SP3
Thermal Design Power (TDP)	200 Watt	225 Watt
Peripherals
PCIe configurations	Gen 5, 128 Lanes, (CPU only)	x16, x8
Max number of PCIe lanes		128
PCI Express revision		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™)