Intel Xeon D-1531 vs Intel Xeon E5-2603

Comparative analysis of Intel Xeon D-1531 and Intel Xeon E5-2603 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-1531

Intel Xeon E5-2603

Differences

Reasons to consider the Intel Xeon D-1531

2 more cores, run more applications at once: 6 vs 4
8 more threads: 12 vs 4
Around 50% higher clock speed: 2.70 GHz vs 1.8 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
Around 78% lower typical power consumption: 45 Watt vs 80 Watt
Around 64% better performance in PassMark - Single thread mark: 1434 vs 873
Around 69% better performance in PassMark - CPU mark: 7483 vs 4433

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 4
Maximum frequency	2.70 GHz vs 1.8 GHz
Manufacturing process technology	14 nm vs 32 nm
Thermal Design Power (TDP)	45 Watt vs 80 Watt
Benchmarks
PassMark - Single thread mark	1434 vs 873
PassMark - CPU mark	7483 vs 4433

Reasons to consider the Intel Xeon E5-2603

3x more maximum memory size: 384 GB vs 128 GB

Maximum memory size	384 GB vs 128 GB
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: Intel Xeon D-1531
CPU 2: Intel Xeon E5-2603

PassMark - Single thread mark

CPU 1

CPU 2

1434

873

PassMark - CPU mark

CPU 1

CPU 2

7483

4433

Name	Intel Xeon D-1531	Intel Xeon E5-2603
PassMark - Single thread mark	1434	873
PassMark - CPU mark	7483	4433
Geekbench 4 - Single Core		1771
Geekbench 4 - Multi-Core		5271

Compare specifications (specs)

	Intel Xeon D-1531	Intel Xeon E5-2603
Essentials
Architecture codename	Broadwell	Sandy Bridge EP
Launch date	Q4'15	March 2012
Place in performance rating	1528	1555
Processor Number	D-1531	E5-2603
Series	Intel® Xeon® D Processor	Intel® Xeon® Processor E5 Family
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$207
Price now		$27.84
Value for money (0-100)		37.88
Performance
64 bit support
Base frequency	2.20 GHz	1.80 GHz
Manufacturing process technology	14 nm	32 nm
Maximum frequency	2.70 GHz	1.8 GHz
Number of cores	6	4
Number of threads	12	4
Bus Speed		6.4 GT/s QPI
Die size		294 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		10240 KB (shared)
Maximum core temperature		70.0°C
Number of QPI Links		2
Transistor count		1270 million
VID voltage range		0.60V-1.35V
Memory
Max memory channels	2	4
Maximum memory size	128 GB	384 GB
Supported memory frequency	2133 MHz
Supported memory types	DDR4, DDR3	DDR3 800/1066
ECC memory support
Maximum memory bandwidth		34.1 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm	52.5mm x 45.0mm
Sockets supported	FCBGA1667	FCLGA2011
Thermal Design Power (TDP)	45 Watt	80 Watt
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
Scalability	1S Only	2S 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)
Intel® Identity Protection technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
General-Purpose Input/Output (GPIO)
Idle States
Instruction set extensions	Intel® AVX2	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)