Intel Xeon E5640 vs Intel Xeon L5506

Comparative analysis of Intel Xeon E5640 and Intel Xeon L5506 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, 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 E5640

Intel Xeon L5506

Differences

Reasons to consider the Intel Xeon E5640

CPU is newer: launch date 1 year(s) 0 month(s) later
4 more threads: 8 vs 4
Around 38% higher clock speed: 2.93 GHz vs 2.13 GHz
Around 11% higher maximum core temperature: 77.6°C vs 70°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
3x more L3 cache, more data can be stored in the L3 cache for quick access later
2x more maximum memory size: 288 GB vs 144 GB
Around 29% better performance in PassMark - Single thread mark: 1252 vs 967
Around 85% better performance in PassMark - CPU mark: 7455 vs 4019

Specifications (specs)
Launch date	March 2010 vs March 2009
Number of threads	8 vs 4
Maximum frequency	2.93 GHz vs 2.13 GHz
Maximum core temperature	77.6°C vs 70°C
Manufacturing process technology	32 nm vs 45 nm
L3 cache	12288 KB (shared) vs 4096 KB (shared)
Maximum memory size	288 GB vs 144 GB
Benchmarks
PassMark - Single thread mark	1252 vs 967
PassMark - CPU mark	7455 vs 4019

Reasons to consider the Intel Xeon L5506

Around 33% lower typical power consumption: 60 Watt vs 80 Watt

Thermal Design Power (TDP)	60 Watt vs 80 Watt

Compare benchmarks

CPU 1: Intel Xeon E5640
CPU 2: Intel Xeon L5506

PassMark - Single thread mark

CPU 1

CPU 2

1252

967

PassMark - CPU mark

CPU 1

CPU 2

7455

4019

Name	Intel Xeon E5640	Intel Xeon L5506
PassMark - Single thread mark	1252	967
PassMark - CPU mark	7455	4019
Geekbench 4 - Single Core	476
Geekbench 4 - Multi-Core	2185

Compare specifications (specs)

	Intel Xeon E5640	Intel Xeon L5506
Essentials
Architecture codename	Westmere EP	Nehalem EP
Launch date	March 2010	March 2009
Launch price (MSRP)	$49	$125
Place in performance rating	2222	2235
Price now	$59.49	$224
Processor Number	E5640	L5506
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Value for money (0-100)	26.06	4.88
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.66 GHz	2.13 GHz
Bus Speed	5.86 GT/s QPI	4.8 GT/s QPI
Die size	239 mm	263 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	12288 KB (shared)	4096 KB (shared)
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	77.6°C	70°C
Maximum frequency	2.93 GHz	2.13 GHz
Number of cores	4	4
Number of QPI Links	2	2
Number of threads	8	4
Transistor count	1170 million	731 million
VID voltage range	0.750V-1.350V	0.75V -1.35V
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	25.6 GB/s	19.2 GB/s
Maximum memory size	288 GB	144 GB
Supported memory types	DDR3 800/1066	DDR3 800
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	42.5mm X 45mm	42.5mm x 45mm
Sockets supported	FCLGA1366	FCLGA1366
Thermal Design Power (TDP)	80 Watt	60 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	40-bit	40-bit
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)