Intel Xeon E5-2643 v4 vs AMD EPYC 7551

Comparative analysis of Intel Xeon E5-2643 v4 and AMD EPYC 7551 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, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon E5-2643 v4

AMD EPYC 7551

Differences

Reasons to consider the Intel Xeon E5-2643 v4

Around 23% higher clock speed: 3.70 GHz vs 3 GHz
Around 33% lower typical power consumption: 135 Watt vs 180 Watt
Around 27% better performance in PassMark - Single thread mark: 2275 vs 1789
Around 25% better performance in Geekbench 4 - Single Core: 3707 vs 2956

Specifications (specs)
Maximum frequency	3.70 GHz vs 3 GHz
Thermal Design Power (TDP)	135 Watt vs 180 Watt
Benchmarks
PassMark - Single thread mark	2275 vs 1789
Geekbench 4 - Single Core	3707 vs 2956

Reasons to consider the AMD EPYC 7551

Processor is unlocked, an unlocked multiplier allows for easier overclocking
26 more cores, run more applications at once: 32 vs 6
52 more threads: 64 vs 12
2.9x better performance in PassMark - CPU mark: 57865 vs 19987
Around 1% better performance in Geekbench 4 - Multi-Core: 20125 vs 19860

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	32 vs 6
Number of threads	64 vs 12
Benchmarks
PassMark - CPU mark	57865 vs 19987
Geekbench 4 - Multi-Core	20125 vs 19860

Compare benchmarks

CPU 1: Intel Xeon E5-2643 v4
CPU 2: AMD EPYC 7551

PassMark - Single thread mark

CPU 1

CPU 2

2275

1789

PassMark - CPU mark

CPU 1

CPU 2

19987

57865

Geekbench 4 - Single Core

CPU 1

CPU 2

3707

2956

Geekbench 4 - Multi-Core

CPU 1

CPU 2

19860

20125

Name	Intel Xeon E5-2643 v4	AMD EPYC 7551
PassMark - Single thread mark	2275	1789
PassMark - CPU mark	19987	57865
Geekbench 4 - Single Core	3707	2956
Geekbench 4 - Multi-Core	19860	20125

Compare specifications (specs)

	Intel Xeon E5-2643 v4	AMD EPYC 7551
Essentials
Architecture codename	Broadwell	Zen
Launch date	Q1'16	June 2017
Place in performance rating	262	258
Processor Number	E5-2643V4
Series	Intel® Xeon® Processor E5 v4 Family	AMD EPYC 7000 Series
Status	Launched
Vertical segment	Server	Server
Family		AMD EPYC
Price now		$3,813.99
Value for money (0-100)		1.43
Performance
64 bit support
Base frequency	3.40 GHz	2 GHz
Bus Speed	9.6 GT/s QPI
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	75°C
Maximum frequency	3.70 GHz	3 GHz
Number of cores	6	32
Number of QPI Links	2
Number of threads	12	64
VID voltage range	0
Die size		192 mm
L1 cache		96 KB (per core)
L2 cache		512 KB (per core)
L3 cache		64 MB
Transistor count		4800 million
Unlocked
Memory
Max memory channels	4	8
Maximum memory bandwidth	76.8 GB/s	341 GB/s
Maximum memory size	1.5 TB
Supported memory types	DDR4 1600/1866/2133/2400	DDR4
Supported memory frequency		2666 MHz
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	45mm x 52.5mm
Sockets supported	FCLGA2011-3	TR4
Thermal Design Power (TDP)	135 Watt	180 Watt
Socket Count		1P/2P
Peripherals
Max number of PCIe lanes	40
PCI Express revision	3.0	x128
PCIe configurations	x4, x8, x16
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)
AMD Virtualization (AMD-V™)