Intel Xeon L5618 vs Intel Xeon L5638

Comparative analysis of Intel Xeon L5618 and Intel Xeon L5638 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.

Intel Xeon L5618

Intel Xeon L5638

Differences

Reasons to consider the Intel Xeon L5618

Around 2% higher maximum core temperature: 87°C vs 85°C
Around 50% lower typical power consumption: 40 Watt vs 60 Watt

Maximum core temperature	87°C vs 85°C
Thermal Design Power (TDP)	40 Watt vs 60 Watt

Reasons to consider the Intel Xeon L5638

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
Around 6% higher clock speed: 2.40 GHz vs 2.26 GHz
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later

Number of cores	6 vs 4
Number of threads	12 vs 8
Maximum frequency	2.40 GHz vs 2.26 GHz
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)

Compare benchmarks

CPU 1: Intel Xeon L5618
CPU 2: Intel Xeon L5638

Name	Intel Xeon L5618	Intel Xeon L5638
PassMark - Single thread mark		944
PassMark - CPU mark		7217

Compare specifications (specs)

	Intel Xeon L5618	Intel Xeon L5638
Essentials
Architecture codename	Westmere EP	Westmere EP
Launch date	March 2010	March 2010
Place in performance rating	not rated	2151
Processor Number	L5618	L5638
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Launched	Launched
Vertical segment	Server	Server
Launch price (MSRP)		$90
Price now		$69.90
Value for money (0-100)		23.41
Performance
64 bit support
Base frequency	1.87 GHz	2.00 GHz
Bus Speed	5.86 GT/s QPI	5.86 GT/s QPI
Die size	239 mm	239 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)	12288 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	87°C	85°C
Maximum frequency	2.26 GHz	2.40 GHz
Number of cores	4	6
Number of threads	8	12
Transistor count	1170 million	1170 million
VID voltage range	1.0 - 1.5V	1.0 - 1.5V
Number of QPI Links		2
Memory
Supported memory types	DDR3	DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Sockets supported	FCLGA1366	FCLGA1366
Thermal Design Power (TDP)	40 Watt	60 Watt
Security & Reliability
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Idle States
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)