Intel Xeon D-1520 vs AMD EPYC 7251

Comparative analysis of Intel Xeon D-1520 and AMD EPYC 7251 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 D-1520

AMD EPYC 7251

Differences

Reasons to consider the Intel Xeon D-1520

2.7x lower typical power consumption: 45 Watt vs 120 Watt

Thermal Design Power (TDP)	45 Watt vs 120 Watt

Reasons to consider the AMD EPYC 7251

Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more cores, run more applications at once: 8 vs 4
8 more threads: 16 vs 8
Around 12% higher clock speed: 2.9 GHz vs 2.60 GHz
Around 32% better performance in PassMark - Single thread mark: 1671 vs 1270
3x better performance in PassMark - CPU mark: 14935 vs 4917

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	8 vs 4
Number of threads	16 vs 8
Maximum frequency	2.9 GHz vs 2.60 GHz
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	1671 vs 1270
PassMark - CPU mark	14935 vs 4917

Compare benchmarks

CPU 1: Intel Xeon D-1520
CPU 2: AMD EPYC 7251

PassMark - Single thread mark

CPU 1

CPU 2

1270

1671

PassMark - CPU mark

CPU 1

CPU 2

4917

14935

Name	Intel Xeon D-1520	AMD EPYC 7251
PassMark - Single thread mark	1270	1671
PassMark - CPU mark	4917	14935
Geekbench 4 - Single Core	2155
Geekbench 4 - Multi-Core	7331

Compare specifications (specs)

	Intel Xeon D-1520	AMD EPYC 7251
Essentials
Architecture codename	Broadwell	Zen
Launch date	Q1'15	June 2017
Place in performance rating	1243	1272
Processor Number	D-1520
Series	Intel® Xeon® D Processor	AMD EPYC 7000 Series
Status	Launched
Vertical segment	Server	Server
Family		AMD EPYC
Performance
64 bit support
Base frequency	2.20 GHz	2.1 GHz
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	80°C
Maximum frequency	2.60 GHz	2.9 GHz
Number of cores	4	8
Number of threads	8	16
Die size		192 mm
L1 cache		96 KB (per core)
L2 cache		512 KB (per core)
L3 cache		32 MB
Transistor count		4800 million
Unlocked
Memory
Max memory channels	2	8
Maximum memory size	128 GB
Supported memory frequency	2133 MHz	2400 MHz
Supported memory types	DDR4	DDR4
Maximum memory bandwidth		307 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm
Sockets supported	FCBGA1667	TR4
Thermal Design Power (TDP)	45 Watt	120 Watt
Socket Count		1P/2P
Peripherals
Integrated LAN
Max number of PCIe lanes	32
Number of USB ports	8
PCI Express revision	2.0/3.0	x128
PCIe configurations	x4 x8 x16
Scalability	1S Only
Total number of SATA ports	6
UART
USB revision	2.0/3.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
General-Purpose Input/Output (GPIO)
Idle States
Instruction set extensions	Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
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™)