Intel Xeon E5-4655 v3 vs Intel Xeon E5-4620 v2

Comparative analysis of Intel Xeon E5-4655 v3 and Intel Xeon E5-4620 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 E5-4655 v3

Intel Xeon E5-4620 v2

Differences

Reasons to consider the Intel Xeon E5-4655 v3

Around 7% higher clock speed: 3.20 GHz vs 3.00 GHz
Around 13% higher maximum core temperature: 84.4°C vs 75°C
Around 16% better performance in PassMark - Single thread mark: 1817 vs 1568

Specifications (specs)
Maximum frequency	3.20 GHz vs 3.00 GHz
Maximum core temperature	84.4°C vs 75°C
Benchmarks
PassMark - Single thread mark	1817 vs 1568

Reasons to consider the Intel Xeon E5-4620 v2

2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12
Around 42% lower typical power consumption: 95 Watt vs 135 Watt
Around 81% better performance in PassMark - CPU mark: 16940 vs 9377

Specifications (specs)
Number of cores	8 vs 6
Number of threads	16 vs 12
Thermal Design Power (TDP)	95 Watt vs 135 Watt
Benchmarks
PassMark - CPU mark	16940 vs 9377

Compare benchmarks

CPU 1: Intel Xeon E5-4655 v3
CPU 2: Intel Xeon E5-4620 v2

PassMark - Single thread mark

CPU 1

CPU 2

1817

1568

PassMark - CPU mark

CPU 1

CPU 2

9377

16940

Name	Intel Xeon E5-4655 v3	Intel Xeon E5-4620 v2
PassMark - Single thread mark	1817	1568
PassMark - CPU mark	9377	16940

Compare specifications (specs)

	Intel Xeon E5-4655 v3	Intel Xeon E5-4620 v2
Essentials
Architecture codename	Haswell	Ivy Bridge EP
Launch date	Q2'15	Q1'14
Place in performance rating	1197	1209
Processor Number	E5-4655V3	E5-4620V2
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	2.90 GHz	2.60 GHz
Bus Speed	9.6 GT/s QPI	7.2 GT/s QPI
Manufacturing process technology	22 nm	22 nm
Maximum core temperature	84.4°C	75°C
Maximum frequency	3.20 GHz	3.00 GHz
Number of cores	6	8
Number of QPI Links	2	2
Number of threads	12	16
VID voltage range		0.65-1.30V
Memory
Max memory channels	4	4
Maximum memory bandwidth	68 GB/s	51.2 GB/s
Maximum memory size	768 GB	768 GB
Supported memory types	DDR4	DDR3 800/1066/1333/1600
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	4
Package Size	52.5mm x 45mm	52.5 mm x 45 mm
Sockets supported	FCLGA2011-3	FCLGA2011
Thermal Design Power (TDP)	135 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	4S	4S Only
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® 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	46-bit
Thermal Monitoring
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)