Intel Xeon D-1548 vs Intel Xeon L5520

Comparative analysis of Intel Xeon D-1548 and Intel Xeon L5520 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-1548

Intel Xeon L5520

Differences

Reasons to consider the Intel Xeon D-1548

4 more cores, run more applications at once: 8 vs 4
8 more threads: 16 vs 8
Around 5% higher clock speed: 2.60 GHz vs 2.48 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 45 nm
Around 33% lower typical power consumption: 45 Watt vs 60 Watt
Around 70% better performance in PassMark - Single thread mark: 1647 vs 969
Around 99% better performance in PassMark - CPU mark: 9075 vs 4561

Specifications (specs)
Number of cores	8 vs 4
Number of threads	16 vs 8
Maximum frequency	2.60 GHz vs 2.48 GHz
Manufacturing process technology	14 nm vs 45 nm
Thermal Design Power (TDP)	45 Watt vs 60 Watt
Benchmarks
PassMark - Single thread mark	1647 vs 969
PassMark - CPU mark	9075 vs 4561

Reasons to consider the Intel Xeon L5520

Around 13% higher maximum memory size: 144 GB vs 128 GB

Maximum memory size	144 GB vs 128 GB
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: Intel Xeon D-1548
CPU 2: Intel Xeon L5520

PassMark - Single thread mark

CPU 1

CPU 2

1647

969

PassMark - CPU mark

CPU 1

CPU 2

9075

4561

Name	Intel Xeon D-1548	Intel Xeon L5520
PassMark - Single thread mark	1647	969
PassMark - CPU mark	9075	4561
Geekbench 4 - Single Core		2032
Geekbench 4 - Multi-Core		6619

Compare specifications (specs)

	Intel Xeon D-1548	Intel Xeon L5520
Essentials
Architecture codename	Broadwell	Nehalem EP
Launch date	Q4'15	March 2009
Place in performance rating	1424	1428
Processor Number	D-1548	L5520
Series	Intel® Xeon® D Processor	Legacy Intel® Xeon® Processors
Status	Launched	Launched
Vertical segment	Server	Server
Launch price (MSRP)		$100
Price now		$12.92
Value for money (0-100)		100.00
Performance
64 bit support
Base frequency	2.00 GHz	2.26 GHz
Manufacturing process technology	14 nm	45 nm
Maximum frequency	2.60 GHz	2.48 GHz
Number of cores	8	4
Number of threads	16	8
Bus Speed		5.86 GT/s QPI
Die size		263 mm2
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		8192 KB (shared)
Maximum core temperature		70°C
Number of QPI Links		2
Transistor count		731 million
VID voltage range		0.75V -1.35V
Memory
Max memory channels	2	3
Maximum memory size	128 GB	144 GB
Supported memory frequency	2400 MHz
Supported memory types	DDR4, DDR3	DDR3 800/1066
ECC memory support
Maximum memory bandwidth		25.6 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5 mm x 37.5 mm	42.5mm x 45mm
Sockets supported	FCBGA1667	FCLGA1366
Thermal Design Power (TDP)	45 Watt	60 Watt
Peripherals
Integrated LAN
Max number of PCIe lanes	32
Number of USB ports	8
PCI Express revision	2.0/3.0
PCIe configurations	x4 x8 x16
Scalability	1S 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)
Advanced Technologies
Enhanced Intel SpeedStep® technology
General-Purpose Input/Output (GPIO)
Idle States
Instruction set extensions	Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Thermal Monitoring
Intel® Demand Based Switching
Physical Address Extensions (PAE)		40-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)