AMD EPYC 3451 vs Intel Xeon E5-2643 v3

Comparative analysis of AMD EPYC 3451 and Intel Xeon E5-2643 v3 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD EPYC 3451

Intel Xeon E5-2643 v3

Differences

Reasons to consider the AMD EPYC 3451

10 more cores, run more applications at once: 16 vs 6
20 more threads: 32 vs 12
Around 36% higher maximum core temperature: 105°C vs 77.3°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 22 nm
Around 35% lower typical power consumption: 100 Watt vs 135 Watt
Around 9% better performance in PassMark - CPU mark: 19532 vs 17937

Specifications (specs)
Number of cores	16 vs 6
Number of threads	32 vs 12
Maximum core temperature	105°C vs 77.3°C
Manufacturing process technology	14 nm vs 22 nm
Thermal Design Power (TDP)	100 Watt vs 135 Watt
Benchmarks
PassMark - CPU mark	19532 vs 17937

Reasons to consider the Intel Xeon E5-2643 v3

Around 23% higher clock speed: 3.70 GHz vs 3 GHz
Around 21% better performance in PassMark - Single thread mark: 2062 vs 1700

Specifications (specs)
Maximum frequency	3.70 GHz vs 3 GHz
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	2062 vs 1700

Compare benchmarks

CPU 1: AMD EPYC 3451
CPU 2: Intel Xeon E5-2643 v3

PassMark - Single thread mark

CPU 1

CPU 2

1700

2062

PassMark - CPU mark

CPU 1

CPU 2

19532

17937

Name	AMD EPYC 3451	Intel Xeon E5-2643 v3
PassMark - Single thread mark	1700	2062
PassMark - CPU mark	19532	17937

Compare specifications (specs)

	AMD EPYC 3451	Intel Xeon E5-2643 v3
Essentials
Architecture codename	Zen (Snowy Owl)	Haswell
Launch date	21 Feb 2018	Q3'14
Place in performance rating	1186	1024
Processor Number		E5-2643V3
Series		Intel® Xeon® Processor E5 v3 Family
Status		Launched
Vertical segment		Server
Performance
Base frequency	2.15 GHz	3.40 GHz
Die size	2x 213 mm²
L1 cache	96K (per core)
L2 cache	512K (per core)
L3 cache	32MB (shared)
Manufacturing process technology	14 nm	22 nm
Maximum core temperature	105°C	77.3°C
Maximum frequency	3 GHz	3.70 GHz
Number of cores	16	6
Number of threads	32	12
Transistor count	4,800 million
Unlocked
64 bit support
Bus Speed		9.6 GT/s QPI
Number of QPI Links		2
VID voltage range		0.65V–1.30V
Memory
ECC memory support
Supported memory types	DDR4-2666 MHz, Dual-channel	DDR4 1600/1866/2133
Max memory channels		4
Maximum memory bandwidth		68 GB/s
Maximum memory size		768 GB
Compatibility
Configurable TDP	80-100 W
Max number of CPUs in a configuration	1	2
Sockets supported	AMD BGA SP4r2	FCLGA2011-3
Thermal Design Power (TDP)	100 Watt	135 Watt
Low Halogen Options Available
Package Size		52.5mm x 45mm
Peripherals
PCIe configurations	Gen 3, 64 Lanes, (CPU only)	x4, x8, x16
Max number of PCIe lanes		40
PCI Express revision		3.0
Scalability		2S
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions		Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)		46-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)