Intel Xeon E5-4655 v4 vs Intel Xeon E5-4640 v4

Comparative analysis of Intel Xeon E5-4655 v4 and Intel Xeon E5-4640 v4 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 E5-4655 v4

Intel Xeon E5-4640 v4

Differences

Reasons to consider the Intel Xeon E5-4655 v4

Around 23% higher clock speed: 3.20 GHz vs 2.60 GHz
Around 3% higher maximum core temperature: 82 vs 80

Maximum frequency	3.20 GHz vs 2.60 GHz
Maximum core temperature	82 vs 80

Reasons to consider the Intel Xeon E5-4640 v4

4 more cores, run more applications at once: 12 vs 8
8 more threads: 24 vs 16
Around 29% lower typical power consumption: 105 Watt vs 135 Watt

Number of cores	12 vs 8
Number of threads	24 vs 16
Thermal Design Power (TDP)	105 Watt vs 135 Watt

Compare benchmarks

CPU 1: Intel Xeon E5-4655 v4
CPU 2: Intel Xeon E5-4640 v4

Name	Intel Xeon E5-4655 v4	Intel Xeon E5-4640 v4
PassMark - Single thread mark		1573
PassMark - CPU mark		22559

Compare specifications (specs)

	Intel Xeon E5-4655 v4	Intel Xeon E5-4640 v4
Essentials
Architecture codename	Broadwell	Broadwell
Launch date	Q2'16	Q2'16
Place in performance rating	not rated	1197
Processor Number	E5-4655V4	E5-4640V4
Series	Intel® Xeon® Processor E5 v4 Family	Intel® Xeon® Processor E5 v4 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.50 GHz	2.10 GHz
Bus Speed	9.6 GT/s QPI	8 GT/s QPI
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	82	80
Maximum frequency	3.20 GHz	2.60 GHz
Number of cores	8	12
Number of QPI Links	2	2
Number of threads	16	24
Memory
Max memory channels	4	4
Maximum memory bandwidth	68 GB/s	68 GB/s
Maximum memory size	1.5 TB	1.5 TB
Supported memory types	DDR4	DDR4
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	4
Package Size	45mm x 52.5mm	45mm x 52.5mm
Sockets supported	FCLGA2011-3	FCLGA2011-3
Thermal Design Power (TDP)	135 Watt	105 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	4S	4S
Security & Reliability
Execute Disable Bit (EDB)
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® AVX2
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	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)