Intel Xeon D-2166NT vs AMD EPYC 7251

Comparative analysis of Intel Xeon D-2166NT 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.

Intel Xeon D-2166NT

AMD EPYC 7251

Differences

Reasons to consider the Intel Xeon D-2166NT

4 more cores, run more applications at once: 12 vs 8
8 more threads: 24 vs 16
Around 3% higher clock speed: 3.00 GHz vs 2.9 GHz
Around 41% lower typical power consumption: 85 Watt vs 120 Watt
Around 5% better performance in PassMark - Single thread mark: 1751 vs 1671
Around 1% better performance in PassMark - CPU mark: 15105 vs 14935

Specifications (specs)
Number of cores	12 vs 8
Number of threads	24 vs 16
Maximum frequency	3.00 GHz vs 2.9 GHz
Thermal Design Power (TDP)	85 Watt vs 120 Watt
Benchmarks
PassMark - Single thread mark	1751 vs 1671
PassMark - CPU mark	15105 vs 14935

Reasons to consider the AMD EPYC 7251

Processor is unlocked, an unlocked multiplier allows for easier overclocking

Unlocked	Unlocked vs Locked
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: Intel Xeon D-2166NT
CPU 2: AMD EPYC 7251

PassMark - Single thread mark

CPU 1

CPU 2

1751

1671

PassMark - CPU mark

CPU 1

CPU 2

15105

14935

Name	Intel Xeon D-2166NT	AMD EPYC 7251
PassMark - Single thread mark	1751	1671
PassMark - CPU mark	15105	14935

Compare specifications (specs)

	Intel Xeon D-2166NT	AMD EPYC 7251
Essentials
Architecture codename	Skylake	Zen
Launch date	Q1'18	June 2017
Place in performance rating	1222	1272
Processor Number	D-2166NT
Series	Intel® Xeon® D Processor	AMD EPYC 7000 Series
Status	Launched
Vertical segment	Server	Server
Family		AMD EPYC
Performance
64 bit support
Base frequency	2.00 GHz	2.1 GHz
Manufacturing process technology	14 nm	14 nm
Maximum frequency	3.00 GHz	2.9 GHz
Number of cores	12	8
Number of threads	24	16
Number of Ultra Path Interconnect (UPI) Links	0
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	4	8
Maximum memory size	512 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
Sockets supported	FCBGA2518	TR4
Thermal Design Power (TDP)	85 Watt	120 Watt
Socket Count		1P/2P
Peripherals
Max number of PCIe lanes	32
PCI Express revision	3.0	x128
PCIe configurations	>
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2
Integrated Intel® QuickAssist Technology
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Number of AVX-512 FMA Units	1
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™)