Intel Xeon E5-2689 vs Intel Xeon L5638

Comparative analysis of Intel Xeon E5-2689 and Intel Xeon L5638 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon E5-2689

Intel Xeon L5638

Differences

Reasons to consider the Intel Xeon E5-2689

CPU is newer: launch date 2 year(s) 0 month(s) later
2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12
Around 50% higher clock speed: 3.6 GHz vs 2.40 GHz

Launch date	6 Mar 2012 vs March 2010
Number of cores	8 vs 6
Number of threads	16 vs 12
Maximum frequency	3.6 GHz vs 2.40 GHz

Reasons to consider the Intel Xeon L5638

Around 63% higher maximum core temperature: 85°C vs 52°C
Around 92% lower typical power consumption: 60 Watt vs 115 Watt

Maximum core temperature	85°C vs 52°C
Thermal Design Power (TDP)	60 Watt vs 115 Watt

Compare benchmarks

CPU 1: Intel Xeon E5-2689
CPU 2: Intel Xeon L5638

Name	Intel Xeon E5-2689	Intel Xeon L5638
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	9.219
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	123.121
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.974
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.868
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	9.539
PassMark - Single thread mark		944
PassMark - CPU mark		7217

Compare specifications (specs)

	Intel Xeon E5-2689	Intel Xeon L5638
Essentials
Architecture codename	Sandy Bridge	Westmere EP
Launch date	6 Mar 2012	March 2010
Place in performance rating	2145	2142
Processor Number	E5-2689	L5638
Vertical segment	Server	Server
Launch price (MSRP)		$90
Price now		$69.90
Series		Legacy Intel® Xeon® Processors
Status		Launched
Value for money (0-100)		23.41
Performance
64 bit support
Base frequency	2.6 GHz	2.00 GHz
Bus Speed	8 GT/s QPI	5.86 GT/s QPI
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	52°C	85°C
Maximum frequency	3.6 GHz	2.40 GHz
Number of cores	8	6
Number of QPI Links	2	2
Number of threads	16	12
VID voltage range	0.6V - 1.35V	1.0 - 1.5V
Die size		239 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		12288 KB (shared)
Transistor count		1170 million
Memory
ECC memory support
Max memory channels	4
Maximum memory bandwidth	51.2 GB/s
Maximum memory size	384 GB
Supported memory types	DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600	DDR3
Compatibility
Max number of CPUs in a configuration	2	2
Sockets supported	LGA2011	FCLGA1366
Thermal Design Power (TDP)	115 Watt	60 Watt
Low Halogen Options Available
Peripherals
Max number of PCIe lanes	40
PCI Express revision	3.0
PCIe configurations	x4, x8, x16
Scalability	2S
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Idle States
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)