Intel Xeon E5-2640 v4 vs Intel Xeon E5-4657L v2

Comparative analysis of Intel Xeon E5-2640 v4 and Intel Xeon E5-4657L 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, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon E5-2640 v4

Intel Xeon E5-4657L v2

Differences

Reasons to consider the Intel Xeon E5-2640 v4

Around 17% higher clock speed: 3.40 GHz vs 2.90 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 22 nm
2x more maximum memory size: 1.5 TB vs 768 GB
Around 28% lower typical power consumption: 90 Watt vs 115 Watt
Around 45% better performance in PassMark - Single thread mark: 1871 vs 1291

Specifications (specs)
Maximum frequency	3.40 GHz vs 2.90 GHz
Manufacturing process technology	14 nm vs 22 nm
Maximum memory size	1.5 TB vs 768 GB
Thermal Design Power (TDP)	90 Watt vs 115 Watt
Benchmarks
PassMark - Single thread mark	1871 vs 1291

Reasons to consider the Intel Xeon E5-4657L v2

2 more cores, run more applications at once: 12 vs 10
4 more threads: 24 vs 20
Around 7% higher maximum core temperature: 81°C vs 76°C
Around 2% better performance in PassMark - CPU mark: 21548 vs 21121

Specifications (specs)
Number of cores	12 vs 10
Number of threads	24 vs 20
Maximum core temperature	81°C vs 76°C
Max number of CPUs in a configuration	4 vs 2
Benchmarks
PassMark - CPU mark	21548 vs 21121

Compare benchmarks

CPU 1: Intel Xeon E5-2640 v4
CPU 2: Intel Xeon E5-4657L v2

PassMark - Single thread mark

CPU 1

CPU 2

1871

1291

PassMark - CPU mark

CPU 1

CPU 2

21121

21548

Name	Intel Xeon E5-2640 v4	Intel Xeon E5-4657L v2
PassMark - Single thread mark	1871	1291
PassMark - CPU mark	21121	21548
Geekbench 4 - Single Core	695
Geekbench 4 - Multi-Core	5464

Compare specifications (specs)

	Intel Xeon E5-2640 v4	Intel Xeon E5-4657L v2
Essentials
Architecture codename	Broadwell	Ivy Bridge EP
Launch date	Q1'16	Q1'14
Place in performance rating	1404	1397
Processor Number	E5-2640V4	E5-4657LV2
Series	Intel® Xeon® Processor E5 v4 Family	Intel® Xeon® Processor E5 v2 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.40 GHz	2.40 GHz
Bus Speed	8 GT/s QPI	8 GT/s QPI
Manufacturing process technology	14 nm	22 nm
Maximum core temperature	76°C	81°C
Maximum frequency	3.40 GHz	2.90 GHz
Number of cores	10	12
Number of QPI Links	2	2
Number of threads	20	24
VID voltage range	0	0.65-1.30V
Memory
Max memory channels	4	4
Maximum memory bandwidth	68.3 GB/s	59.7 GB/s
Maximum memory size	1.5 TB	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	45mm x 52.5mm	52.5 mm x 51 mm
Sockets supported	FCLGA2011-3	FCLGA2011
Thermal Design Power (TDP)	90 Watt	115 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)