AMD EPYC 7742 vs AMD Opteron 4274 HE

Comparative analysis of AMD EPYC 7742 and AMD Opteron 4274 HE 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 7742

AMD Opteron 4274 HE

Differences

Reasons to consider the AMD EPYC 7742

56 more cores, run more applications at once: 64 vs 8
120 more threads: 128 vs 8
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm, 14 nm vs 32 nm
10.7x more L1 cache, more data can be stored in the L1 cache for quick access later
4x more L2 cache, more data can be stored in the L2 cache for quick access later
32x more L3 cache, more data can be stored in the L3 cache for quick access later
2x better performance in PassMark - Single thread mark: 2157 vs 1060
16.9x better performance in PassMark - CPU mark: 97501 vs 5776

Specifications (specs)
Number of cores	64 vs 8
Number of threads	128 vs 8
Manufacturing process technology	7 nm, 14 nm vs 32 nm
L1 cache	4 MB vs 384 KB
L2 cache	32 MB vs 8 MB
L3 cache	256 MB vs 8 MB
Benchmarks
PassMark - Single thread mark	2157 vs 1060
PassMark - CPU mark	97501 vs 5776

Reasons to consider the AMD Opteron 4274 HE

Around 3% higher clock speed: 3.5 GHz vs 3.4 GHz
3.5x lower typical power consumption: 65 Watt vs 225 Watt

Maximum frequency	3.5 GHz vs 3.4 GHz
Thermal Design Power (TDP)	65 Watt vs 225 Watt

Compare benchmarks

CPU 1: AMD EPYC 7742
CPU 2: AMD Opteron 4274 HE

PassMark - Single thread mark

CPU 1

CPU 2

2157

1060

PassMark - CPU mark

CPU 1

CPU 2

97501

5776

Name	AMD EPYC 7742	AMD Opteron 4274 HE
PassMark - Single thread mark	2157	1060
PassMark - CPU mark	97501	5776

Compare specifications (specs)

	AMD EPYC 7742	AMD Opteron 4274 HE
Essentials
Architecture codename	Zen 2
Launch date	7 Aug 2019
Place in performance rating	94	1974
Vertical segment	Server	Server
Family		AMD Opteron
OPN Tray		OS4274OFU8KGU
Series		AMD Opteron 4200 Series Processor
Performance
Base frequency	2.25 GHz	2.5 GHz
L1 cache	4 MB	384 KB
L2 cache	32 MB	8 MB
L3 cache	256 MB	8 MB
Manufacturing process technology	7 nm, 14 nm	32 nm
Maximum frequency	3.4 GHz	3.5 GHz
Number of cores	64	8
Number of threads	128	8
Unlocked
Maximum core temperature		68°C
Memory
ECC memory support
Max memory channels	8
Maximum memory bandwidth	190.7 GB/s
Maximum memory size	4 TB
Supported memory types	DDR4-3200	DDR3
Supported memory frequency		2000 MHz
Compatibility
Max number of CPUs in a configuration	2
Sockets supported	SP3	C32
Thermal Design Power (TDP)	225 Watt	65 Watt
Peripherals
Max number of PCIe lanes	128
PCI Express revision	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™)