Intel Xeon E5-2650L v3 vs Intel Xeon E5-4640 v2

Comparative analysis of Intel Xeon E5-2650L v3 and Intel Xeon E5-4640 v2 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.

Intel Xeon E5-2650L v3

Intel Xeon E5-4640 v2

Differences

Reasons to consider the Intel Xeon E5-2650L v3

2 more cores, run more applications at once: 12 vs 10
4 more threads: 24 vs 20
Around 46% lower typical power consumption: 65 Watt vs 95 Watt
Around 4% better performance in PassMark - CPU mark: 19882 vs 19028

Specifications (specs)
Number of cores	12 vs 10
Number of threads	24 vs 20
Thermal Design Power (TDP)	65 Watt vs 95 Watt
Benchmarks
PassMark - CPU mark	19882 vs 19028

Reasons to consider the Intel Xeon E5-4640 v2

Around 8% higher clock speed: 2.70 GHz vs 2.50 GHz
Around 18% higher maximum core temperature: 75°C vs 63.6°C
Around 2% better performance in PassMark - Single thread mark: 1373 vs 1352

Specifications (specs)
Maximum frequency	2.70 GHz vs 2.50 GHz
Maximum core temperature	75°C vs 63.6°C
Max number of CPUs in a configuration	4 vs 2
Benchmarks
PassMark - Single thread mark	1373 vs 1352

Compare benchmarks

CPU 1: Intel Xeon E5-2650L v3
CPU 2: Intel Xeon E5-4640 v2

PassMark - Single thread mark

CPU 1

CPU 2

1352

1373

PassMark - CPU mark

CPU 1

CPU 2

19882

19028

Name	Intel Xeon E5-2650L v3	Intel Xeon E5-4640 v2
PassMark - Single thread mark	1352	1373
PassMark - CPU mark	19882	19028

Compare specifications (specs)

	Intel Xeon E5-2650L v3	Intel Xeon E5-4640 v2
Essentials
Architecture codename	Haswell	Ivy Bridge EP
Launch date	Q3'14	Q1'14
Place in performance rating	1395	1396
Processor Number	E5-2650LV3	E5-4640V2
Series	Intel® Xeon® Processor E5 v3 Family	Intel® Xeon® Processor E5 v2 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	1.80 GHz	2.20 GHz
Bus Speed	9.6 GT/s QPI	8 GT/s QPI
Manufacturing process technology	22 nm	22 nm
Maximum core temperature	63.6°C	75°C
Maximum frequency	2.50 GHz	2.70 GHz
Number of cores	12	10
Number of QPI Links	2	2
Number of threads	24	20
VID voltage range	0.65V–1.30V	0.65-1.30V
Memory
Max memory channels	4	4
Maximum memory bandwidth	68 GB/s	59.7 GB/s
Maximum memory size	768 GB	768 GB
Supported memory types	DDR4 1600/1866/2133	DDR3 800/1066/1333/1600/1866
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	4
Package Size	52.5mm x 45mm	52.5 mm x 45 mm
Sockets supported	FCLGA2011-3	FCLGA2011
Thermal Design Power (TDP)	65 Watt	95 Watt
Peripherals
Max number of PCIe lanes	40	40
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16	x4, x8, x16
Scalability	2S	4S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	46-bit	46-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)