Intel Xeon D-1581 vs Intel Xeon E5-2640 v3

Comparative analysis of Intel Xeon D-1581 and Intel Xeon E5-2640 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, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon D-1581

Intel Xeon E5-2640 v3

Differences

Reasons to consider the Intel Xeon D-1581

A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 22 nm
Around 38% lower typical power consumption: 65 Watt vs 90 Watt

Manufacturing process technology	14 nm vs 22 nm
Thermal Design Power (TDP)	65 Watt vs 90 Watt

Reasons to consider the Intel Xeon E5-2640 v3

Around 42% higher clock speed: 3.40 GHz vs 2.40 GHz
6x more maximum memory size: 768 GB vs 128 GB
Around 18% better performance in PassMark - Single thread mark: 1751 vs 1484
Around 32% better performance in PassMark - CPU mark: 17496 vs 13259

Specifications (specs)
Maximum frequency	3.40 GHz vs 2.40 GHz
Maximum memory size	768 GB vs 128 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	1751 vs 1484
PassMark - CPU mark	17496 vs 13259

Compare benchmarks

CPU 1: Intel Xeon D-1581
CPU 2: Intel Xeon E5-2640 v3

PassMark - Single thread mark

CPU 1

CPU 2

1484

1751

PassMark - CPU mark

CPU 1

CPU 2

13259

17496

Name	Intel Xeon D-1581	Intel Xeon E5-2640 v3
PassMark - Single thread mark	1484	1751
PassMark - CPU mark	13259	17496
Geekbench 4 - Single Core		750
Geekbench 4 - Multi-Core		5657

Compare specifications (specs)

	Intel Xeon D-1581	Intel Xeon E5-2640 v3
Essentials
Architecture codename	Broadwell	Haswell
Launch date	Feb 2016	Q3'14
Place in performance rating	1447	1465
Processor Number	D-1581	E5-2640V3
Series	Intel Xeon D Processor	Intel® Xeon® Processor E5 v3 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	1.80 GHz	2.60 GHz
L1 cache	1 MB
L2 cache	4 MB
L3 cache	24 MB
Manufacturing process technology	14 nm	22 nm
Maximum frequency	2.40 GHz	3.40 GHz
Bus Speed		8 GT/s QPI
Maximum core temperature		74.3°C
Number of cores		8
Number of QPI Links		2
Number of threads		16
VID voltage range		0.65V–1.30V
Memory
Max memory channels	2	4
Maximum memory size	128 GB	768 GB
Supported memory frequency	2133 MHz
Supported memory types	DDR4, DDR3	DDR4 1600/1866
Maximum memory bandwidth		59 GB/s
Compatibility
Max number of CPUs in a configuration	1	2
Package Size	37.5 mm x 37.5 mm	52.5mm x 45mm
Sockets supported	FCBGA1667	FCLGA2011-3
Thermal Design Power (TDP)	65 Watt	90 Watt
Low Halogen Options Available
Peripherals
Integrated LAN
Max number of PCIe lanes	32	40
Number of USB ports	8
PCI Express revision	2.0/3.0	3.0
PCIe configurations	x4 x8 x16	x4, x8, x16
Scalability	1S Only	2S
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)
Intel® Identity Protection technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
General-Purpose Input/Output (GPIO)
Idle States
Instruction set extensions	Intel AVX2	Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® TSX-NI
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)		46-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)