Intel Pentium D1508 vs Intel Xeon D-1521

Comparative analysis of Intel Pentium D1508 and Intel Xeon D-1521 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 Pentium D1508

Intel Xeon D-1521

Differences

Reasons to consider the Intel Pentium D1508

Around 80% lower typical power consumption: 25 Watt vs 45 Watt
Around 5% better performance in PassMark - Single thread mark: 1760 vs 1678

Specifications (specs)
Thermal Design Power (TDP)	25 Watt vs 45 Watt
Benchmarks
PassMark - Single thread mark	1760 vs 1678

Reasons to consider the Intel Xeon D-1521

2 more cores, run more applications at once: 4 vs 2
4 more threads: 8 vs 4
Around 4% higher clock speed: 2.70 GHz vs 2.60 GHz
Around 75% better performance in PassMark - CPU mark: 5657 vs 3240

Specifications (specs)
Number of cores	4 vs 2
Number of threads	8 vs 4
Maximum frequency	2.70 GHz vs 2.60 GHz
Benchmarks
PassMark - CPU mark	5657 vs 3240

Compare benchmarks

CPU 1: Intel Pentium D1508
CPU 2: Intel Xeon D-1521

PassMark - Single thread mark

CPU 1

CPU 2

1760

1678

PassMark - CPU mark

CPU 1

CPU 2

3240

5657

Name	Intel Pentium D1508	Intel Xeon D-1521
PassMark - Single thread mark	1760	1678
PassMark - CPU mark	3240	5657

Compare specifications (specs)

	Intel Pentium D1508	Intel Xeon D-1521
Essentials
Architecture codename	Broadwell	Broadwell
Launch date	Q4'15	Q4'15
Place in performance rating	1379	1388
Processor Number	D1508	D-1521
Series	Intel® Pentium® Processor D Series	Intel® Xeon® D Processor
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.20 GHz	2.40 GHz
Manufacturing process technology	14 nm	14 nm
Maximum frequency	2.60 GHz	2.70 GHz
Number of cores	2	4
Number of threads	4	8
Memory
Max memory channels	2	2
Maximum memory size	128 GB	128 GB
Supported memory frequency	1866 MHz	2133 MHz
Supported memory types	DDR4, DDR3	DDR4, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	FCBGA1667	FCBGA1667
Thermal Design Power (TDP)	25 Watt	45 Watt
Peripherals
Integrated LAN
Max number of PCIe lanes	32	32
Number of USB ports	8	8
PCI Express revision	2.0/3.0	2.0/3.0
PCIe configurations	x4 x8 x16	x4 x8 x16
Scalability	1S Only	1S Only
Total number of SATA ports	6	6
UART
USB revision	2.0/3.0	2.0/3.0
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
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® 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)