Intel Xeon D-2146NT vs Intel Xeon D-1520

Comparative analysis of Intel Xeon D-2146NT and Intel Xeon D-1520 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-2146NT

Intel Xeon D-1520

Differences

Reasons to consider the Intel Xeon D-2146NT

4 more cores, run more applications at once: 8 vs 4
8 more threads: 16 vs 8
Around 15% higher clock speed: 3.00 GHz vs 2.60 GHz
4x more maximum memory size: 512 GB vs 128 GB
Around 42% better performance in PassMark - Single thread mark: 1802 vs 1270
2.4x better performance in PassMark - CPU mark: 11736 vs 4917

Specifications (specs)
Number of cores	8 vs 4
Number of threads	16 vs 8
Maximum frequency	3.00 GHz vs 2.60 GHz
Maximum memory size	512 GB vs 128 GB
Benchmarks
PassMark - Single thread mark	1802 vs 1270
PassMark - CPU mark	11736 vs 4917

Reasons to consider the Intel Xeon D-1520

Around 78% lower typical power consumption: 45 Watt vs 80 Watt

Thermal Design Power (TDP)	45 Watt vs 80 Watt

Compare benchmarks

CPU 1: Intel Xeon D-2146NT
CPU 2: Intel Xeon D-1520

PassMark - Single thread mark

CPU 1

CPU 2

1802

1270

PassMark - CPU mark

CPU 1

CPU 2

11736

4917

Name	Intel Xeon D-2146NT	Intel Xeon D-1520
PassMark - Single thread mark	1802	1270
PassMark - CPU mark	11736	4917
Geekbench 4 - Single Core		2155
Geekbench 4 - Multi-Core		7331

Compare specifications (specs)

	Intel Xeon D-2146NT	Intel Xeon D-1520
Essentials
Architecture codename	Skylake	Broadwell
Launch date	Q1'18	Q1'15
Place in performance rating	1155	1163
Processor Number	D-2146NT	D-1520
Series	Intel® Xeon® D Processor	Intel® Xeon® D Processor
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.30 GHz	2.20 GHz
Manufacturing process technology	14 nm	14 nm
Maximum frequency	3.00 GHz	2.60 GHz
Number of cores	8	4
Number of threads	16	8
Number of Ultra Path Interconnect (UPI) Links	0
Maximum core temperature		80°C
Memory
Max memory channels	4	2
Maximum memory size	512 GB	128 GB
Supported memory frequency	2133 MHz	2133 MHz
Supported memory types	DDR4	DDR4
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Sockets supported	FCBGA2518	FCBGA1667
Thermal Design Power (TDP)	80 Watt	45 Watt
Package Size		37.5mm x 37.5mm
Peripherals
Max number of PCIe lanes	32	32
PCI Express revision	3.0	2.0/3.0
PCIe configurations	>	x4 x8 x16
Scalability	1S Only	1S Only
Integrated LAN
Number of USB ports		8
Total number of SATA ports		6
UART
USB revision		2.0/3.0
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	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
General-Purpose Input/Output (GPIO)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)