Intel Xeon E5-4640 v3 vs Intel Xeon E5-2637

Comparative analysis of Intel Xeon E5-4640 v3 and Intel Xeon E5-2637 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 E5-4640 v3

Intel Xeon E5-2637

Differences

Reasons to consider the Intel Xeon E5-4640 v3

10 more cores, run more applications at once: 12 vs 2
20 more threads: 24 vs 4
Around 11% higher maximum core temperature: 77.6°C vs 70.0°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2x more maximum memory size: 768 GB vs 384 GB
Around 80% better performance in PassMark - CPU mark: 10372 vs 5775

Specifications (specs)
Number of cores	12 vs 2
Number of threads	24 vs 4
Maximum core temperature	77.6°C vs 70.0°C
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	768 GB vs 384 GB
Max number of CPUs in a configuration	4 vs 2
Benchmarks
PassMark - CPU mark	10372 vs 5775

Reasons to consider the Intel Xeon E5-2637

Around 35% higher clock speed: 3.50 GHz vs 2.60 GHz
Around 31% lower typical power consumption: 80 Watt vs 105 Watt
Around 9% better performance in PassMark - Single thread mark: 1654 vs 1514

Specifications (specs)
Maximum frequency	3.50 GHz vs 2.60 GHz
Thermal Design Power (TDP)	80 Watt vs 105 Watt
Benchmarks
PassMark - Single thread mark	1654 vs 1514

Compare benchmarks

CPU 1: Intel Xeon E5-4640 v3
CPU 2: Intel Xeon E5-2637

PassMark - Single thread mark

CPU 1

CPU 2

1514

1654

PassMark - CPU mark

CPU 1

CPU 2

10372

5775

Name	Intel Xeon E5-4640 v3	Intel Xeon E5-2637
PassMark - Single thread mark	1514	1654
PassMark - CPU mark	10372	5775

Compare specifications (specs)

	Intel Xeon E5-4640 v3	Intel Xeon E5-2637
Essentials
Architecture codename	Haswell	Sandy Bridge EP
Launch date	Q2'15	March 2012
Place in performance rating	1400	1402
Processor Number	E5-4640V3	E5-2637
Series	Intel® Xeon® Processor E5 v3 Family	Intel® Xeon® Processor E5 Family
Status	Launched	Discontinued
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	1.90 GHz	3.00 GHz
Bus Speed	8 GT/s QPI	8 GT/s QPI
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	77.6°C	70.0°C
Maximum frequency	2.60 GHz	3.50 GHz
Number of cores	12	2
Number of QPI Links	2	2
Number of threads	24	4
Die size		294 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		5120 KB (shared)
Transistor count		1270 million
VID voltage range		0.6V - 1.35V
Memory
Max memory channels	4	4
Maximum memory bandwidth	68 GB/s	51.2 GB/s
Maximum memory size	768 GB	384 GB
Supported memory types	DDR4	DDR3 800/1066/1333/1600
ECC memory support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	2
Package Size	52.5mm x 51mm	52.5mm x 45.0mm
Sockets supported	FCLGA2011-3	FCLGA2011
Thermal Design Power (TDP)	105 Watt	80 Watt
Peripherals
Max number of PCIe lanes	40	40
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16
Scalability	4S	2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Intel® Identity Protection technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Instruction Replay Technology
Intel® TSX-NI
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	46-bit
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Intel® Demand Based Switching
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)